sdl-ios-xcode: acinclude/c.m4 annotate

annotate acinclude/c.m4 @ 3376:106a409ceeef

This is crazy. In order to override the default optimization for GCC, we actually have to include the core autoconf C compiler macro suite.

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 11 Oct 2009 06:33:34 +0000
parents
children	a211710ebc37

rev	line source
3376 106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 # This file is part of Autoconf. -- Autoconf --
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 # Programming languages support.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	3 # Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4 # Software Foundation, Inc.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 # This program is free software: you can redistribute it and/or modify
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 # it under the terms of the GNU General Public License as published by
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 # the Free Software Foundation; either version 2, or (at your option)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9 # any later version.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 # This program is distributed in the hope that it will be useful,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14 # GNU General Public License for more details.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 # You should have received a copy of the GNU General Public License
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 # along with this program; if not, write to the Free Software
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 # 02110-1301, USA.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 # As a special exception, the Free Software Foundation gives unlimited
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 # permission to copy, distribute and modify the configure scripts that
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23 # are the output of Autoconf. You need not follow the terms of the GNU
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 # General Public License when using or distributing such scripts, even
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25 # though portions of the text of Autoconf appear in them. The GNU
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26 # General Public License (GPL) does govern all other use of the material
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 # that constitutes the Autoconf program.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 # Certain portions of the Autoconf source text are designed to be copied
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 # (in certain cases, depending on the input) into the output of
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31 # Autoconf. We call these the "data" portions. The rest of the Autoconf
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 # source text consists of comments plus executable code that decides which
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 # of the data portions to output in any given case. We call these
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 # comments and executable code the "non-data" portions. Autoconf never
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35 # copies any of the non-data portions into its output.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37 # This special exception to the GPL applies to versions of Autoconf
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 # released by the Free Software Foundation. When you make and
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 # distribute a modified version of Autoconf, you may extend this special
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 # exception to the GPL to apply to your modified version as well, unless
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41 # your modified version has the potential to copy into its output some
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 # of the text that was the non-data portion of the version that you started
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	43 # with. (In other words, unless your change moves or copies text from
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 # the non-data portions to the data portions.) If your modification has
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 # such potential, you must delete any notice of this special exception
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 # to the GPL from your modified version.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	47 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 # Written by David MacKenzie, with help from
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 # Akim Demaille, Paul Eggert,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 # Roland McGrath, Noah Friedman, david d zuhn, and many others.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 # Table of Contents:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 # 1. Language selection
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 # and routines to produce programs in a given language.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 # 1a. C 1b. C++ 1c. Objective C
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 # 2. Producing programs in a given language.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 # 2a. C 2b. C++ 2c. Objective C
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 # 3. Looking for a compiler
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 # And possibly the associated preprocessor.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65 # 3a. C 3b. C++ 3c. Objective C
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 # 4. Compilers' characteristics.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 # 4a. C
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 ## ----------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 ## 1. Language selection. ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 ## ----------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 # -------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 # 1a. The C language. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 # -------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 # AC_LANG(C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 # ----------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 m4_define([AC_LANG(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 [ac_ext=c
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 ac_cpp='$CPP $CPPFLAGS'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 ac_compiler_gnu=$ac_cv_c_compiler_gnu
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 # AC_LANG_C
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 # ---------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 AU_DEFUN([AC_LANG_C], [AC_LANG(C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 # _AC_LANG_ABBREV(C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 # ------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 m4_define([_AC_LANG_ABBREV(C)], [c])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 # _AC_LANG_PREFIX(C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 # ------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 m4_define([_AC_LANG_PREFIX(C)], [C])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 # ---------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 # 1b. The C++ language. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 # ---------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 # AC_LANG(C++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 # ------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 m4_define([AC_LANG(C++)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 [ac_ext=cpp
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 ac_cpp='$CXXCPP $CPPFLAGS'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 # AC_LANG_CPLUSPLUS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 # -----------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 AU_DEFUN([AC_LANG_CPLUSPLUS], [AC_LANG(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131 # _AC_LANG_ABBREV(C++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 # --------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 m4_define([_AC_LANG_ABBREV(C++)], [cxx])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 # _AC_LANG_PREFIX(C++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 # --------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 m4_define([_AC_LANG_PREFIX(C++)], [CXX])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 # ------------------------------ #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 # 1c. The Objective C language. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 # ------------------------------ #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 # AC_LANG(Objective C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 # --------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 m4_define([AC_LANG(Objective C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 [ac_ext=m
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 ac_cpp='$OBJCPP $CPPFLAGS'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 ac_compile='$OBJC -c $OBJCFLAGS $CPPFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 ac_link='$OBJC -o conftest$ac_exeext $OBJCFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 ac_compiler_gnu=$ac_cv_objc_compiler_gnu
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 # AC_LANG_OBJC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 # ------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 AU_DEFUN([AC_LANG_OBJC], [AC_LANG(Objective C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 # _AC_LANG_ABBREV(Objective C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 # ----------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 m4_define([_AC_LANG_ABBREV(Objective C)], [objc])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	168 # _AC_LANG_PREFIX(Objective C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169 # ----------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	170 m4_define([_AC_LANG_PREFIX(Objective C)], [OBJC])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	173
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	174 ## ----------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	175 ## 2. Producing programs. ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	176 ## ----------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	177
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	178 # --------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	179 # 2a. C sources. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180 # --------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	181
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	182
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183 # AC_LANG_SOURCE(C)(BODY)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	184 # -----------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	185 # We can't use '#line $LINENO "configure"' here, since
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	186 # Sun c89 (Sun WorkShop 6 update 2 C 5.3 Patch 111679-08 2002/05/09)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187 # rejects $LINENO greater than 32767, and some configure scripts
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	188 # are longer than 32767 lines.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189 m4_define([AC_LANG_SOURCE(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	190 [/* confdefs.h. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	191 _ACEOF
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	192 cat confdefs.h >>conftest.$ac_ext
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	193 cat >>conftest.$ac_ext <<_ACEOF
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	194 /* end confdefs.h. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	195 $1])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	196
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198 # AC_LANG_PROGRAM(C)([PROLOGUE], [BODY])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	199 # --------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	200 m4_define([AC_LANG_PROGRAM(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	201 [$1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	202 m4_ifdef([_AC_LANG_PROGRAM_C_F77_HOOKS], [_AC_LANG_PROGRAM_C_F77_HOOKS])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203 m4_ifdef([_AC_LANG_PROGRAM_C_FC_HOOKS], [_AC_LANG_PROGRAM_C_FC_HOOKS])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204 int
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	205 main ()
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207 dnl Do not indent the following line: there may be CPP directives.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	208 dnl Don't move the `;' right after for the same reason.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	209 $2
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	210 ;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	211 return 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	212 }])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	213
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	214
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	215 # AC_LANG_CALL(C)(PROLOGUE, FUNCTION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	216 # -----------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	217 # Avoid conflicting decl of main.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	218 m4_define([AC_LANG_CALL(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	219 [AC_LANG_PROGRAM([$1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	220 m4_if([$2], [main], ,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	221 [/* Override any GCC internal prototype to avoid an error.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	222 Use char because int might match the return type of a GCC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	223 builtin and then its argument prototype would still apply. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	224 #ifdef __cplusplus
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	225 extern "C"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	226 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	227 char $2 ();])], [return $2 ();])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	228
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	229
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	230 # AC_LANG_FUNC_LINK_TRY(C)(FUNCTION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	231 # ----------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	232 # Don't include <ctype.h> because on OSF/1 3.0 it includes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	233 # <sys/types.h> which includes <sys/select.h> which contains a
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	234 # prototype for select. Similarly for bzero.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	235 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	236 # This test used to merely assign f=$1 in main(), but that was
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	237 # optimized away by HP unbundled cc A.05.36 for ia64 under +O3,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	238 # presumably on the basis that there's no need to do that store if the
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	239 # program is about to exit. Conversely, the AIX linker optimizes an
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	240 # unused external declaration that initializes f=$1. So this test
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241 # program has both an external initialization of f, and a use of f in
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	242 # main that affects the exit status.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	243 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	244 m4_define([AC_LANG_FUNC_LINK_TRY(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	245 [AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	246 [/* Define $1 to an innocuous variant, in case <limits.h> declares $1.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	247 For example, HP-UX 11i <limits.h> declares gettimeofday. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	248 #define $1 innocuous_$1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	250 /* System header to define __stub macros and hopefully few prototypes,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251 which can conflict with char $1 (); below.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	252 Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253 <limits.h> exists even on freestanding compilers. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	254
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	255 #ifdef __STDC__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	256 # include <limits.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	257 #else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 # include <assert.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	261 #undef $1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	262
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263 /* Override any GCC internal prototype to avoid an error.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	264 Use char because int might match the return type of a GCC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 builtin and then its argument prototype would still apply. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 #ifdef __cplusplus
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 extern "C"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	269 char $1 ();
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 /* The GNU C library defines this for functions which it implements
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	271 to always fail with ENOSYS. Some functions are actually named
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	272 something starting with __ and the normal name is an alias. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	273 #if defined __stub_$1 \|\| defined __stub___$1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	274 choke me
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 ], [return $1 ();])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	278
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279 # AC_LANG_BOOL_COMPILE_TRY(C)(PROLOGUE, EXPRESSION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 # -------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	281 # Return a program that is valid if EXPRESSION is nonzero.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	282 # EXPRESSION must be an integer constant expression.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	283 # Be sure to use this array to avoid `unused' warnings, which are even
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 # errors with `-W error'.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 m4_define([AC_LANG_BOOL_COMPILE_TRY(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286 [AC_LANG_PROGRAM([$1], [static int test_array @<:@1 - 2 * !($2)@:>@;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287 test_array @<:@0@:>@ = 0
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288 ])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	289
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 # AC_LANG_INT_SAVE(C)(PROLOGUE, EXPRESSION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292 # -----------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293 # We need `stdio.h' to open a `FILE' and `stdlib.h' for `exit'.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	294 # But we include them only after the EXPRESSION has been evaluated.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 m4_define([AC_LANG_INT_SAVE(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	296 [AC_LANG_PROGRAM([$1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	297 static long int longval () { return $2; }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	298 static unsigned long int ulongval () { return $2; }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	299 @%:@include <stdio.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300 @%:@include <stdlib.h>],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	301 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 FILE *f = fopen ("conftest.val", "w");
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303 if (! f)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	304 return 1;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	305 if (($2) < 0)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	306 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	307 long int i = longval ();
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	308 if (i != ($2))
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	309 return 1;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	310 fprintf (f, "%ld", i);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	314 unsigned long int i = ulongval ();
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 if (i != ($2))
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 return 1;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	317 fprintf (f, "%lu", i);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 /* Do not output a trailing newline, as this causes \r\n confusion
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320 on some platforms. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	321 return ferror (f) \|\| fclose (f) != 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	322 ])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	323
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	324
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	325
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	326 # ----------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	327 # 2b. C++ sources. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	328 # ----------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	329
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	330
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	331 # AC_LANG_SOURCE(C++)(BODY)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	332 # -------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 m4_copy([AC_LANG_SOURCE(C)], [AC_LANG_SOURCE(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	335
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	336 # AC_LANG_PROGRAM(C++)([PROLOGUE], [BODY])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	337 # ----------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	338 m4_copy([AC_LANG_PROGRAM(C)], [AC_LANG_PROGRAM(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	339
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	340
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341 # AC_LANG_CALL(C++)(PROLOGUE, FUNCTION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	342 # -------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	343 m4_copy([AC_LANG_CALL(C)], [AC_LANG_CALL(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	344
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	345
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	346 # AC_LANG_FUNC_LINK_TRY(C++)(FUNCTION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	347 # ------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	348 m4_copy([AC_LANG_FUNC_LINK_TRY(C)], [AC_LANG_FUNC_LINK_TRY(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	349
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	350
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	351 # AC_LANG_BOOL_COMPILE_TRY(C++)(PROLOGUE, EXPRESSION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	352 # ---------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	353 m4_copy([AC_LANG_BOOL_COMPILE_TRY(C)], [AC_LANG_BOOL_COMPILE_TRY(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	354
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	355
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	356 # AC_LANG_INT_SAVE(C++)(PROLOGUE, EXPRESSION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	357 # -------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	358 m4_copy([AC_LANG_INT_SAVE(C)], [AC_LANG_INT_SAVE(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	359
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	361
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	362 # ------------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	363 # 2c. Objective C sources. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	364 # ------------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	365
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	366
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	367 # AC_LANG_SOURCE(Objective C)(BODY)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	368 # ---------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	369 m4_copy([AC_LANG_SOURCE(C)], [AC_LANG_SOURCE(Objective C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	370
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	371
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	372 # AC_LANG_PROGRAM(Objective C)([PROLOGUE], [BODY])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	373 # ------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	374 m4_copy([AC_LANG_PROGRAM(C)], [AC_LANG_PROGRAM(Objective C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	375
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	376
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	377 # AC_LANG_CALL(Objective C)(PROLOGUE, FUNCTION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	378 # ---------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	379 m4_copy([AC_LANG_CALL(C)], [AC_LANG_CALL(Objective C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	380
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	381
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	382 # AC_LANG_FUNC_LINK_TRY(Objective C)(FUNCTION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	383 # --------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 m4_copy([AC_LANG_FUNC_LINK_TRY(C)], [AC_LANG_FUNC_LINK_TRY(Objective C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	385
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	386
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	387 # AC_LANG_BOOL_COMPILE_TRY(Objective C)(PROLOGUE, EXPRESSION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	388 # -----------------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	389 m4_copy([AC_LANG_BOOL_COMPILE_TRY(C)], [AC_LANG_BOOL_COMPILE_TRY(Objective C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	390
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	391
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	392 # AC_LANG_INT_SAVE(Objective C)(PROLOGUE, EXPRESSION)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	393 # ---------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	394 m4_copy([AC_LANG_INT_SAVE(C)], [AC_LANG_INT_SAVE(Objective C)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	397
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	398 ## -------------------------------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	399 ## 3. Looking for Compilers and Preprocessors. ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	400 ## -------------------------------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	401
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	402 # -------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 # 3a. The C compiler. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404 # -------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	405
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	406
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	407 # _AC_ARG_VAR_CPPFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	408 # --------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	409 # Document and register CPPFLAGS, which is used by
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	410 # AC_PROG_{CC, CPP, CXX, CXXCPP, OBJC, OBJCPP}.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	411 AC_DEFUN([_AC_ARG_VAR_CPPFLAGS],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 [AC_ARG_VAR([CPPFLAGS],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 [C/C++/Objective C preprocessor flags, e.g. -I<include dir>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	414 if you have headers in a nonstandard directory <include dir>])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	416
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	417 # _AC_ARG_VAR_LDFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418 # -------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	419 # Document and register LDFLAGS, which is used by
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	420 # AC_PROG_{CC, CXX, F77, FC, OBJC}.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421 AC_DEFUN([_AC_ARG_VAR_LDFLAGS],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	422 [AC_ARG_VAR([LDFLAGS],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	423 [linker flags, e.g. -L<lib dir> if you have libraries in a
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	424 nonstandard directory <lib dir>])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	425
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	426
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	427 # _AC_ARG_VAR_LIBS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428 # ----------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 # Document and register LIBS, which is used by
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 # AC_PROG_{CC, CXX, F77, FC, OBJS}.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	431 AC_DEFUN([_AC_ARG_VAR_LIBS],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	432 [AC_ARG_VAR([LIBS],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	433 [libraries to pass to the linker, e.g. -l<library>])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	434
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	436 # AC_LANG_PREPROC(C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	437 # -------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	438 # Find the C preprocessor. Must be AC_DEFUN'd to be AC_REQUIRE'able.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	439 AC_DEFUN([AC_LANG_PREPROC(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	440 [AC_REQUIRE([AC_PROG_CPP])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	441
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	442
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	443 # _AC_PROG_PREPROC_WORKS_IFELSE(IF-WORKS, IF-NOT)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	444 # -----------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	445 # Check if $ac_cpp is a working preprocessor that can flag absent
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	446 # includes either by the exit status or by warnings.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	447 # This macro is for all languages, not only C.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	448 AC_DEFUN([_AC_PROG_PREPROC_WORKS_IFELSE],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	449 [ac_preproc_ok=false
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	450 for ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag in '' yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	451 do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	452 # Use a header file that comes with gcc, so configuring glibc
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	453 # with a fresh cross-compiler works.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	454 # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 # <limits.h> exists even on freestanding compilers.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 # On the NeXT, cc -E runs the code through the compiler's parser,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	457 # not just through cpp. "Syntax error" is here to catch this case.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 _AC_PREPROC_IFELSE([AC_LANG_SOURCE([[@%:@ifdef __STDC__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 @%:@ include <limits.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	460 @%:@else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	461 @%:@ include <assert.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	462 @%:@endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	463 Syntax error]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 [],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	465 [# Broken: fails on valid input.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466 continue])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	467
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	468 # OK, works on sane cases. Now check whether nonexistent headers
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	469 # can be detected and how.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	470 _AC_PREPROC_IFELSE([AC_LANG_SOURCE([[@%:@include <ac_nonexistent.h>]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	471 [# Broken: success on invalid input.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 continue],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473 [# Passes both tests.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474 ac_preproc_ok=:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	475 break])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	476
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	477 done
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	478 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	479 rm -f conftest.err conftest.$ac_ext
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	480 AS_IF([$ac_preproc_ok], [$1], [$2])])# _AC_PROG_PREPROC_WORKS_IFELSE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	481
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	482
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	483 # AC_PROG_CPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	484 # -----------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	485 # Find a working C preprocessor.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	486 # We shouldn't have to require AC_PROG_CC, but this is due to the concurrency
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	487 # between the AC_LANG_COMPILER_REQUIRE family and that of AC_PROG_CC.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	488 AN_MAKEVAR([CPP], [AC_PROG_CPP])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489 AN_PROGRAM([cpp], [AC_PROG_CPP])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	490 AC_DEFUN([AC_PROG_CPP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	491 [AC_REQUIRE([AC_PROG_CC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	492 AC_ARG_VAR([CPP], [C preprocessor])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	493 _AC_ARG_VAR_CPPFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	494 AC_LANG_PUSH(C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	495 AC_MSG_CHECKING([how to run the C preprocessor])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	496 # On Suns, sometimes $CPP names a directory.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	497 if test -n "$CPP" && test -d "$CPP"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	498 CPP=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	499 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	500 if test -z "$CPP"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	501 AC_CACHE_VAL([ac_cv_prog_CPP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	502 [dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	503 # Double quotes because CPP needs to be expanded
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	504 for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	505 do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	506 _AC_PROG_PREPROC_WORKS_IFELSE([break])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	507 done
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	508 ac_cv_prog_CPP=$CPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	509 ])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	510 CPP=$ac_cv_prog_CPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	511 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	512 ac_cv_prog_CPP=$CPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	513 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	514 AC_MSG_RESULT([$CPP])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	515 _AC_PROG_PREPROC_WORKS_IFELSE([],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	516 [AC_MSG_FAILURE([C preprocessor "$CPP" fails sanity check])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	517 AC_SUBST(CPP)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	518 AC_LANG_POP(C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	519 ])# AC_PROG_CPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	520
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	521 # AC_PROG_CPP_WERROR
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	522 # ------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	523 # Treat warnings from the preprocessor as errors.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	524 AC_DEFUN([AC_PROG_CPP_WERROR],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	525 [AC_REQUIRE([AC_PROG_CPP])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	526 ac_c_preproc_warn_flag=yes])# AC_PROG_CPP_WERROR
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	527
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	528 # AC_LANG_COMPILER(C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	529 # -------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	530 # Find the C compiler. Must be AC_DEFUN'd to be AC_REQUIRE'able.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	531 AC_DEFUN([AC_LANG_COMPILER(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	532 [AC_REQUIRE([AC_PROG_CC])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	533
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	534
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	535 # ac_cv_prog_gcc
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	536 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	537 # We used to name the cache variable this way.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	538 AU_DEFUN([ac_cv_prog_gcc],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	539 [ac_cv_c_compiler_gnu])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	540
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	541
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	542 # AC_PROG_CC([COMPILER ...])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	543 # --------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	544 # COMPILER ... is a space separated list of C compilers to search for.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	545 # This just gives the user an opportunity to specify an alternative
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	546 # search list for the C compiler.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	547 AN_MAKEVAR([CC], [AC_PROG_CC])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	548 AN_PROGRAM([cc], [AC_PROG_CC])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	549 AN_PROGRAM([gcc], [AC_PROG_CC])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	550 AC_DEFUN([AC_PROG_CC],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	551 [AC_LANG_PUSH(C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	552 AC_ARG_VAR([CC], [C compiler command])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	553 AC_ARG_VAR([CFLAGS], [C compiler flags])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	554 _AC_ARG_VAR_LDFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	555 _AC_ARG_VAR_LIBS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	556 _AC_ARG_VAR_CPPFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	557 m4_ifval([$1],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	558 [AC_CHECK_TOOLS(CC, [$1])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	559 [AC_CHECK_TOOL(CC, gcc)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	560 if test -z "$CC"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	561 dnl Here we want:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	562 dnl AC_CHECK_TOOL(CC, cc)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	563 dnl but without the check for a tool without the prefix.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	564 dnl Until the check is removed from there, copy the code:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	565 if test -n "$ac_tool_prefix"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	566 AC_CHECK_PROG(CC, [${ac_tool_prefix}cc], [${ac_tool_prefix}cc])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	567 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	568 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	569 if test -z "$CC"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	570 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	571 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	572 if test -z "$CC"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	573 AC_CHECK_TOOLS(CC, cl.exe)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	574 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	575 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	576
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	577 test -z "$CC" && AC_MSG_FAILURE([no acceptable C compiler found in \$PATH])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	578
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	579 # Provide some information about the compiler.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	580 _AS_ECHO_LOG([checking for _AC_LANG compiler version])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	581 set X $ac_compile
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	582 ac_compiler=$[2]
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	583 _AC_DO([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	584 _AC_DO([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	585 _AC_DO([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	586
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	587 m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	588 m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	589 _AC_LANG_COMPILER_GNU
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	590 if test $ac_compiler_gnu = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	591 GCC=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	592 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	593 GCC=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	594 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	595 _AC_PROG_CC_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	596 _AC_PROG_CC_C89
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	597 AC_LANG_POP(C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	598 ])# AC_PROG_CC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	599
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	600
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	601 # _AC_PROG_CC_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	602 # -------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	603 # Check whether -g works, even if CFLAGS is set, in case the package
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	604 # plays around with CFLAGS (such as to build both debugging and normal
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	605 # versions of a library), tasteless as that idea is.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	606 # Don't consider -g to work if it generates warnings when plain compiles don't.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	607 m4_define([_AC_PROG_CC_G],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	608 [ac_test_CFLAGS=${CFLAGS+set}
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	609 ac_save_CFLAGS=$CFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	610 AC_CACHE_CHECK(whether $CC accepts -g, ac_cv_prog_cc_g,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	611 [ac_save_c_werror_flag=$ac_c_werror_flag
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	612 ac_c_werror_flag=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	613 ac_cv_prog_cc_g=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	614 CFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	615 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	616 [ac_cv_prog_cc_g=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	617 [CFLAGS=""
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	618 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	619 [],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	620 [ac_c_werror_flag=$ac_save_c_werror_flag
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	621 CFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	622 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	623 [ac_cv_prog_cc_g=yes])])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	624 ac_c_werror_flag=$ac_save_c_werror_flag])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	625 if test "$ac_test_CFLAGS" = set; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	626 CFLAGS=$ac_save_CFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	627 elif test $ac_cv_prog_cc_g = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	628 if test "$GCC" = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	629 CFLAGS="-g -O2"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	630 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	631 CFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	632 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	633 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	634 if test "$GCC" = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	635 CFLAGS="-O2"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	636 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	637 CFLAGS=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	638 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	639 fi[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	640 ])# _AC_PROG_CC_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	641
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	642
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	643 # AC_PROG_GCC_TRADITIONAL
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	644 # -----------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	645 AC_DEFUN([AC_PROG_GCC_TRADITIONAL],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	646 [AC_REQUIRE([AC_PROG_CC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	647 if test $ac_cv_c_compiler_gnu = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	648 AC_CACHE_CHECK(whether $CC needs -traditional,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	649 ac_cv_prog_gcc_traditional,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	650 [ ac_pattern="Autoconf.*'x'"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	651 AC_EGREP_CPP($ac_pattern, [#include <sgtty.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	652 Autoconf TIOCGETP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	653 ac_cv_prog_gcc_traditional=yes, ac_cv_prog_gcc_traditional=no)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	654
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	655 if test $ac_cv_prog_gcc_traditional = no; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	656 AC_EGREP_CPP($ac_pattern, [#include <termio.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	657 Autoconf TCGETA],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	658 ac_cv_prog_gcc_traditional=yes)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	659 fi])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	660 if test $ac_cv_prog_gcc_traditional = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	661 CC="$CC -traditional"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	662 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	663 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	664 ])# AC_PROG_GCC_TRADITIONAL
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	665
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	666
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	667 # AC_PROG_CC_C_O
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	668 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	669 AC_DEFUN([AC_PROG_CC_C_O],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	670 [AC_REQUIRE([AC_PROG_CC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	671 if test "x$CC" != xcc; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	672 AC_MSG_CHECKING([whether $CC and cc understand -c and -o together])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	673 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	674 AC_MSG_CHECKING([whether cc understands -c and -o together])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	675 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	676 set dummy $CC; ac_cc=`AS_ECHO(["$[2]"]) \|
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	677 sed 's/[[^a-zA-Z0-9_]]/_/g;s/^[[0-9]]/_/'`
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	678 AC_CACHE_VAL(ac_cv_prog_cc_${ac_cc}_c_o,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	679 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	680 # Make sure it works both with $CC and with simple cc.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	681 # We do the test twice because some compilers refuse to overwrite an
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	682 # existing .o file with -o, though they will create one.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	683 ac_try='$CC -c conftest.$ac_ext -o conftest2.$ac_objext >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	684 rm -f conftest2.*
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	685 if _AC_DO_VAR(ac_try) &&
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	686 test -f conftest2.$ac_objext && _AC_DO_VAR(ac_try);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	687 then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	688 eval ac_cv_prog_cc_${ac_cc}_c_o=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	689 if test "x$CC" != xcc; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	690 # Test first that cc exists at all.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	691 if _AC_DO_TOKENS(cc -c conftest.$ac_ext >&AS_MESSAGE_LOG_FD); then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	692 ac_try='cc -c conftest.$ac_ext -o conftest2.$ac_objext >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	693 rm -f conftest2.*
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	694 if _AC_DO_VAR(ac_try) &&
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	695 test -f conftest2.$ac_objext && _AC_DO_VAR(ac_try);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	696 then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	697 # cc works too.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	698 :
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	699 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	700 # cc exists but doesn't like -o.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	701 eval ac_cv_prog_cc_${ac_cc}_c_o=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	702 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	703 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	704 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	705 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	706 eval ac_cv_prog_cc_${ac_cc}_c_o=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	707 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	708 rm -f core conftest*
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	709 ])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	710 if eval test \$ac_cv_prog_cc_${ac_cc}_c_o = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	711 AC_MSG_RESULT([yes])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	712 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	713 AC_MSG_RESULT([no])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	714 AC_DEFINE(NO_MINUS_C_MINUS_O, 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	715 [Define to 1 if your C compiler doesn't accept -c and -o together.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	716 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	717 ])# AC_PROG_CC_C_O
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	718
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	719
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	720
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	721 # ---------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	722 # 3b. The C++ compiler. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	723 # ---------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	724
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	725
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	726 # AC_LANG_PREPROC(C++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	727 # ---------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	728 # Find the C++ preprocessor. Must be AC_DEFUN'd to be AC_REQUIRE'able.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	729 AC_DEFUN([AC_LANG_PREPROC(C++)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	730 [AC_REQUIRE([AC_PROG_CXXCPP])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	731
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	732
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	733 # AC_PROG_CXXCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	734 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	735 # Find a working C++ preprocessor.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	736 # We shouldn't have to require AC_PROG_CC, but this is due to the concurrency
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	737 # between the AC_LANG_COMPILER_REQUIRE family and that of AC_PROG_CXX.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	738 AC_DEFUN([AC_PROG_CXXCPP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	739 [AC_REQUIRE([AC_PROG_CXX])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	740 AC_ARG_VAR([CXXCPP], [C++ preprocessor])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	741 _AC_ARG_VAR_CPPFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	742 AC_LANG_PUSH(C++)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	743 AC_MSG_CHECKING([how to run the C++ preprocessor])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	744 if test -z "$CXXCPP"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	745 AC_CACHE_VAL(ac_cv_prog_CXXCPP,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	746 [dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	747 # Double quotes because CXXCPP needs to be expanded
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	748 for CXXCPP in "$CXX -E" "/lib/cpp"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	749 do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	750 _AC_PROG_PREPROC_WORKS_IFELSE([break])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	751 done
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	752 ac_cv_prog_CXXCPP=$CXXCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	753 ])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	754 CXXCPP=$ac_cv_prog_CXXCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	755 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	756 ac_cv_prog_CXXCPP=$CXXCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	757 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	758 AC_MSG_RESULT([$CXXCPP])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	759 _AC_PROG_PREPROC_WORKS_IFELSE([],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	760 [AC_MSG_FAILURE([C++ preprocessor "$CXXCPP" fails sanity check])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	761 AC_SUBST(CXXCPP)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	762 AC_LANG_POP(C++)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	763 ])# AC_PROG_CXXCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	764
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	765
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	766 # AC_LANG_COMPILER(C++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	767 # ---------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	768 # Find the C++ compiler. Must be AC_DEFUN'd to be AC_REQUIRE'able.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	769 AC_DEFUN([AC_LANG_COMPILER(C++)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	770 [AC_REQUIRE([AC_PROG_CXX])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	771
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	772
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	773 # ac_cv_prog_gxx
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	774 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	775 # We used to name the cache variable this way.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	776 AU_DEFUN([ac_cv_prog_gxx],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	777 [ac_cv_cxx_compiler_gnu])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	778
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	779
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	780 # AC_PROG_CXX([LIST-OF-COMPILERS])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	781 # --------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	782 # LIST-OF-COMPILERS is a space separated list of C++ compilers to search
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	783 # for (if not specified, a default list is used). This just gives the
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	784 # user an opportunity to specify an alternative search list for the C++
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	785 # compiler.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	786 # aCC HP-UX C++ compiler much better than `CC', so test before.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	787 # FCC Fujitsu C++ compiler
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	788 # KCC KAI C++ compiler
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	789 # RCC Rational C++
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	790 # xlC_r AIX C Set++ (with support for reentrant code)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	791 # xlC AIX C Set++
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	792 AN_MAKEVAR([CXX], [AC_PROG_CXX])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	793 AN_PROGRAM([CC], [AC_PROG_CXX])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	794 AN_PROGRAM([c++], [AC_PROG_CXX])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	795 AN_PROGRAM([g++], [AC_PROG_CXX])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	796 AC_DEFUN([AC_PROG_CXX],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	797 [AC_LANG_PUSH(C++)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	798 AC_ARG_VAR([CXX], [C++ compiler command])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	799 AC_ARG_VAR([CXXFLAGS], [C++ compiler flags])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	800 _AC_ARG_VAR_LDFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	801 _AC_ARG_VAR_LIBS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	802 _AC_ARG_VAR_CPPFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	803 _AC_ARG_VAR_PRECIOUS([CCC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	804 if test -z "$CXX"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	805 if test -n "$CCC"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	806 CXX=$CCC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	807 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	808 AC_CHECK_TOOLS(CXX,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	809 [m4_default([$1],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	810 [g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	811 g++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	812 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	813 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	814 # Provide some information about the compiler.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	815 _AS_ECHO_LOG([checking for _AC_LANG compiler version])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	816 set X $ac_compile
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	817 ac_compiler=$[2]
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	818 _AC_DO([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	819 _AC_DO([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	820 _AC_DO([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	821
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	822 m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	823 m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	824 _AC_LANG_COMPILER_GNU
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	825 if test $ac_compiler_gnu = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	826 GXX=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	827 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	828 GXX=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	829 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	830 _AC_PROG_CXX_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	831 AC_LANG_POP(C++)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	832 ])# AC_PROG_CXX
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	833
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	834
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	835 # _AC_PROG_CXX_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	836 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	837 # Check whether -g works, even if CXXFLAGS is set, in case the package
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	838 # plays around with CXXFLAGS (such as to build both debugging and
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	839 # normal versions of a library), tasteless as that idea is.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	840 # Don't consider -g to work if it generates warnings when plain compiles don't.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	841 m4_define([_AC_PROG_CXX_G],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	842 [ac_test_CXXFLAGS=${CXXFLAGS+set}
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	843 ac_save_CXXFLAGS=$CXXFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	844 AC_CACHE_CHECK(whether $CXX accepts -g, ac_cv_prog_cxx_g,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	845 [ac_save_cxx_werror_flag=$ac_cxx_werror_flag
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	846 ac_cxx_werror_flag=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	847 ac_cv_prog_cxx_g=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	848 CXXFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	849 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	850 [ac_cv_prog_cxx_g=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	851 [CXXFLAGS=""
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	852 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	853 [],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	854 [ac_cxx_werror_flag=$ac_save_cxx_werror_flag
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	855 CXXFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	856 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	857 [ac_cv_prog_cxx_g=yes])])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	858 ac_cxx_werror_flag=$ac_save_cxx_werror_flag])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	859 if test "$ac_test_CXXFLAGS" = set; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	860 CXXFLAGS=$ac_save_CXXFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	861 elif test $ac_cv_prog_cxx_g = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	862 if test "$GXX" = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	863 CXXFLAGS="-g -O2"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	864 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	865 CXXFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	866 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	867 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	868 if test "$GXX" = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	869 CXXFLAGS="-O2"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	870 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	871 CXXFLAGS=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	872 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	873 fi[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	874 ])# _AC_PROG_CXX_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	875
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	876
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	877 # AC_PROG_CXX_C_O
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	878 # ---------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	879 # Test if the C++ compiler accepts the options `-c' and `-o'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	880 # simultaneously, and define `CXX_NO_MINUS_C_MINUS_O' if it does not.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	881 AC_DEFUN([AC_PROG_CXX_C_O],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	882 [AC_REQUIRE([AC_PROG_CXX])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	883 AC_LANG_PUSH([C++])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	884 AC_CACHE_CHECK([whether $CXX understands -c and -o together],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	885 [ac_cv_prog_cxx_c_o],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	886 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	887 # We test twice because some compilers refuse to overwrite an existing
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	888 # `.o' file with `-o', although they will create one.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	889 ac_try='$CXX $CXXFLAGS -c conftest.$ac_ext -o conftest2.$ac_objext >&AS_MESSAGE_LOG_FD'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	890 rm -f conftest2.*
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	891 if _AC_DO_VAR(ac_try) &&
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	892 test -f conftest2.$ac_objext &&
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	893 _AC_DO_VAR(ac_try); then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	894 ac_cv_prog_cxx_c_o=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	895 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	896 ac_cv_prog_cxx_c_o=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	897 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	898 rm -f conftest*])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	899 if test $ac_cv_prog_cxx_c_o = no; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	900 AC_DEFINE(CXX_NO_MINUS_C_MINUS_O, 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	901 [Define to 1 if your C++ compiler doesn't accept
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	902 -c and -o together.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	903 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	904 AC_LANG_POP([C++])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	905 ])# AC_PROG_CXX_C_O
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	906
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	907
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	908
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	909 # ------------------------------ #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	910 # 3c. The Objective C compiler. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	911 # ------------------------------ #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	912
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	913
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	914 # AC_LANG_PREPROC(Objective C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	915 # ----------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	916 # Find the Objective C preprocessor. Must be AC_DEFUN'd to be AC_REQUIRE'able.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	917 AC_DEFUN([AC_LANG_PREPROC(Objective C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	918 [AC_REQUIRE([AC_PROG_OBJCPP])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	919
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	920
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	921 # AC_PROG_OBJCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	922 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	923 # Find a working Objective C preprocessor.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	924 AC_DEFUN([AC_PROG_OBJCPP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	925 [AC_REQUIRE([AC_PROG_OBJC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	926 AC_ARG_VAR([OBJCPP], [Objective C preprocessor])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	927 _AC_ARG_VAR_CPPFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	928 AC_LANG_PUSH(Objective C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	929 AC_MSG_CHECKING([how to run the Objective C preprocessor])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	930 if test -z "$OBJCPP"; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	931 AC_CACHE_VAL(ac_cv_prog_OBJCPP,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	932 [dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	933 # Double quotes because OBJCPP needs to be expanded
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	934 for OBJCPP in "$OBJC -E" "/lib/cpp"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	935 do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	936 _AC_PROG_PREPROC_WORKS_IFELSE([break])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	937 done
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	938 ac_cv_prog_OBJCPP=$OBJCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	939 ])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	940 OBJCPP=$ac_cv_prog_OBJCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	941 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	942 ac_cv_prog_OBJCPP=$OBJCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	943 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	944 AC_MSG_RESULT([$OBJCPP])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	945 _AC_PROG_PREPROC_WORKS_IFELSE([],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	946 [AC_MSG_FAILURE([Objective C preprocessor "$OBJCPP" fails sanity check])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	947 AC_SUBST(OBJCPP)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	948 AC_LANG_POP(Objective C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	949 ])# AC_PROG_OBJCPP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	950
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	951
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	952 # AC_LANG_COMPILER(Objective C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	953 # -----------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	954 # Find the Objective C compiler. Must be AC_DEFUN'd to be AC_REQUIRE'able.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	955 AC_DEFUN([AC_LANG_COMPILER(Objective C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	956 [AC_REQUIRE([AC_PROG_OBJC])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	957
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	958
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	959
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	960 # AC_PROG_OBJC([LIST-OF-COMPILERS])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	961 # ---------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	962 # LIST-OF-COMPILERS is a space separated list of Objective C compilers to
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	963 # search for (if not specified, a default list is used). This just gives
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	964 # the user an opportunity to specify an alternative search list for the
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	965 # Objective C compiler.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	966 # objcc StepStone Objective-C compiler (also "standard" name for OBJC)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	967 # objc David Stes' POC. If you installed this, you likely want it.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	968 # cc Native C compiler (for instance, Apple).
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	969 # CC You never know.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	970 AN_MAKEVAR([OBJC], [AC_PROG_OBJC])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	971 AN_PROGRAM([objcc], [AC_PROG_OBJC])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	972 AN_PROGRAM([objc], [AC_PROG_OBJC])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	973 AC_DEFUN([AC_PROG_OBJC],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	974 [AC_LANG_PUSH(Objective C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	975 AC_ARG_VAR([OBJC], [Objective C compiler command])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	976 AC_ARG_VAR([OBJCFLAGS], [Objective C compiler flags])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	977 _AC_ARG_VAR_LDFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	978 _AC_ARG_VAR_LIBS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	979 _AC_ARG_VAR_CPPFLAGS()dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	980 _AC_ARG_VAR_PRECIOUS([OBJC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	981 AC_CHECK_TOOLS(OBJC,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	982 [m4_default([$1], [gcc objcc objc cc CC])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	983 gcc)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	984 # Provide some information about the compiler.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	985 _AS_ECHO_LOG([checking for _AC_LANG compiler version])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	986 set X $ac_compile
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	987 ac_compiler=$[2]
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	988 _AC_DO([$ac_compiler --version >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	989 _AC_DO([$ac_compiler -v >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	990 _AC_DO([$ac_compiler -V >&AS_MESSAGE_LOG_FD])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	991
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	992 m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	993 m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	994 _AC_LANG_COMPILER_GNU
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	995 if test $ac_compiler_gnu = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	996 GOBJC=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	997 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	998 GOBJC=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	999 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1000 _AC_PROG_OBJC_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1001 AC_LANG_POP(Objective C)dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1002 ])# AC_PROG_OBJC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1003
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1004
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1005 # _AC_PROG_OBJC_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1006 # ---------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1007 # Check whether -g works, even if OBJCFLAGS is set, in case the package
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1008 # plays around with OBJCFLAGS (such as to build both debugging and
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1009 # normal versions of a library), tasteless as that idea is.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1010 # Don't consider -g to work if it generates warnings when plain compiles don't.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1011 m4_define([_AC_PROG_OBJC_G],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1012 [ac_test_OBJCFLAGS=${OBJCFLAGS+set}
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1013 ac_save_OBJCFLAGS=$OBJCFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1014 AC_CACHE_CHECK(whether $OBJC accepts -g, ac_cv_prog_objc_g,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1015 [ac_save_objc_werror_flag=$ac_objc_werror_flag
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1016 ac_objc_werror_flag=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1017 ac_cv_prog_objc_g=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1018 OBJCFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1019 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1020 [ac_cv_prog_objc_g=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1021 [OBJCFLAGS=""
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1022 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1023 [],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1024 [ac_objc_werror_flag=$ac_save_objc_werror_flag
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1025 OBJCFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1026 _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1027 [ac_cv_prog_objc_g=yes])])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1028 ac_objc_werror_flag=$ac_save_objc_werror_flag])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1029 if test "$ac_test_OBJCFLAGS" = set; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1030 OBJCFLAGS=$ac_save_OBJCFLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1031 elif test $ac_cv_prog_objc_g = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1032 if test "$GOBJC" = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1033 OBJCFLAGS="-g -O2"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1034 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1035 OBJCFLAGS="-g"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1036 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1037 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1038 if test "$GOBJC" = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1039 OBJCFLAGS="-O2"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1040 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1041 OBJCFLAGS=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1042 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1043 fi[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1044 ])# _AC_PROG_OBJC_G
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1045
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1046
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1047
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1048 ## ------------------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1049 ## 4. Compilers' characteristics. ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1050 ## ------------------------------- ##
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1051
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1052 # -------------------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1053 # 4a. C compiler characteristics. #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1054 # -------------------------------- #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1055
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1056
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1057 # _AC_PROG_CC_C89 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1058 # ----------------------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1059 # If the C compiler is not in ANSI C89 (ISO C90) mode by default, try
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1060 # to add an option to output variable CC to make it so. This macro
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1061 # tries various options that select ANSI C89 on some system or
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1062 # another. It considers the compiler to be in ANSI C89 mode if it
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1063 # handles function prototypes correctly.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1064 AC_DEFUN([_AC_PROG_CC_C89],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1065 [_AC_C_STD_TRY([c89],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1066 [[#include <stdarg.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1067 #include <stdio.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1068 #include <sys/types.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1069 #include <sys/stat.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1070 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1071 struct buf { int x; };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1072 FILE * (rcsopen) (struct buf , struct stat *, int);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1073 static char *e (p, i)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1074 char **p;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1075 int i;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1076 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1077 return p[i];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1078 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1079 static char f (char (g) (char , int), char *p, ...)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1080 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1081 char *s;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1082 va_list v;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1083 va_start (v,p);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1084 s = g (p, va_arg (v,int));
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1085 va_end (v);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1086 return s;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1087 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1088
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1089 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1090 function prototypes and stuff, but not '\xHH' hex character constants.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1091 These don't provoke an error unfortunately, instead are silently treated
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1092 as 'x'. The following induces an error, until -std is added to get
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1093 proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1094 array size at least. It's necessary to write '\x00'==0 to get something
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1095 that's true only with -std. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1096 int osf4_cc_array ['\x00' == 0 ? 1 : -1];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1097
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1098 /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1099 inside strings and character constants. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1100 #define FOO(x) 'x'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1101 int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1102
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1103 int test (int i, double x);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1104 struct s1 {int (*f) (int a);};
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1105 struct s2 {int (*f) (double a);};
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1106 int pairnames (int, char *, FILE ()(struct buf , struct stat *, int), int, int);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1107 int argc;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1108 char **argv;]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1109 [[return f (e, argv, 0) != argv[0] \|\| f (e, argv, 1) != argv[1];]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1110 dnl Don't try gcc -ansi; that turns off useful extensions and
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1111 dnl breaks some systems' header files.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1112 dnl AIX circa 2003 -qlanglvl=extc89
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1113 dnl old AIX -qlanglvl=ansi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1114 dnl Ultrix, OSF/1, Tru64 -std
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1115 dnl HP-UX 10.20 and later -Ae
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1116 dnl HP-UX older versions -Aa -D_HPUX_SOURCE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1117 dnl SVR4 -Xc -D__EXTENSIONS__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1118 [-qlanglvl=extc89 -qlanglvl=ansi -std \
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1119 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"], [$1], [$2])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1120 ])# _AC_PROG_CC_C89
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1121
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1122
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1123 # _AC_C_STD_TRY(STANDARD, TEST-PROLOGUE, TEST-BODY, OPTION-LIST,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1124 # ACTION-IF-AVAILABLE, ACTION-IF-UNAVAILABLE)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1125 # --------------------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1126 # Check whether the C compiler accepts features of STANDARD (e.g `c89', `c99')
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1127 # by trying to compile a program of TEST-PROLOGUE and TEST-BODY. If this fails,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1128 # try again with each compiler option in the space-separated OPTION-LIST; if one
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1129 # helps, append it to CC. If eventually successful, run ACTION-IF-AVAILABLE,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1130 # else ACTION-IF-UNAVAILABLE.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1131 AC_DEFUN([_AC_C_STD_TRY],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1132 [AC_MSG_CHECKING([for $CC option to accept ISO ]m4_translit($1, [c], [C]))
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1133 AC_CACHE_VAL(ac_cv_prog_cc_$1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1134 [ac_cv_prog_cc_$1=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1135 ac_save_CC=$CC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1136 AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1137 for ac_arg in '' $4
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1138 do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1139 CC="$ac_save_CC $ac_arg"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1140 _AC_COMPILE_IFELSE([], [ac_cv_prog_cc_$1=$ac_arg])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1141 test "x$ac_cv_prog_cc_$1" != "xno" && break
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1142 done
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1143 rm -f conftest.$ac_ext
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1144 CC=$ac_save_CC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1145 ])# AC_CACHE_VAL
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1146 case "x$ac_cv_prog_cc_$1" in
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1147 x)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1148 AC_MSG_RESULT([none needed]) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1149 xno)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1150 AC_MSG_RESULT([unsupported]) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1151 *)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1152 CC="$CC $ac_cv_prog_cc_$1"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1153 AC_MSG_RESULT([$ac_cv_prog_cc_$1]) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1154 esac
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1155 AS_IF([test "x$ac_cv_prog_cc_$1" != xno], [$5], [$6])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1156 ])# _AC_C_STD_TRY
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1157
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1158
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1159 # _AC_PROG_CC_C99 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1160 # ----------------------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1161 # If the C compiler is not in ISO C99 mode by default, try to add an
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1162 # option to output variable CC to make it so. This macro tries
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1163 # various options that select ISO C99 on some system or another. It
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1164 # considers the compiler to be in ISO C99 mode if it handles _Bool,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1165 # // comments, flexible array members, inline, long long int, mixed
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1166 # code and declarations, named initialization of structs, restrict,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1167 # va_copy, varargs macros, variable declarations in for loops and
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1168 # variable length arrays.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1169 AC_DEFUN([_AC_PROG_CC_C99],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1170 [_AC_C_STD_TRY([c99],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1171 [[#include <stdarg.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1172 #include <stdbool.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1173 #include <stdlib.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1174 #include <wchar.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1175 #include <stdio.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1176
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1177 // Check varargs macros. These examples are taken from C99 6.10.3.5.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1178 #define debug(...) fprintf (stderr, __VA_ARGS__)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1179 #define showlist(...) puts (#__VA_ARGS__)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1180 #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1181 static void
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1182 test_varargs_macros (void)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1183 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1184 int x = 1234;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1185 int y = 5678;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1186 debug ("Flag");
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1187 debug ("X = %d\n", x);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1188 showlist (The first, second, and third items.);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1189 report (x>y, "x is %d but y is %d", x, y);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1190 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1191
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1192 // Check long long types.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1193 #define BIG64 18446744073709551615ull
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1194 #define BIG32 4294967295ul
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1195 #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1196 #if !BIG_OK
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1197 your preprocessor is broken;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1198 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1199 #if BIG_OK
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1200 #else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1201 your preprocessor is broken;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1202 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1203 static long long int bignum = -9223372036854775807LL;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1204 static unsigned long long int ubignum = BIG64;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1205
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1206 struct incomplete_array
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1207 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1208 int datasize;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1209 double data[];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1210 };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1211
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1212 struct named_init {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1213 int number;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1214 const wchar_t *name;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1215 double average;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1216 };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1217
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1218 typedef const char *ccp;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1219
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1220 static inline int
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1221 test_restrict (ccp restrict text)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1222 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1223 // See if C++-style comments work.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1224 // Iterate through items via the restricted pointer.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1225 // Also check for declarations in for loops.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1226 for (unsigned int i = 0; *(text+i) != '\0'; ++i)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1227 continue;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1228 return 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1229 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1230
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1231 // Check varargs and va_copy.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1232 static void
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1233 test_varargs (const char *format, ...)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1234 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1235 va_list args;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1236 va_start (args, format);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1237 va_list args_copy;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1238 va_copy (args_copy, args);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1239
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1240 const char *str;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1241 int number;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1242 float fnumber;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1243
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1244 while (*format)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1245 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1246 switch (*format++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1247 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1248 case 's': // string
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1249 str = va_arg (args_copy, const char *);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1250 break;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1251 case 'd': // int
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1252 number = va_arg (args_copy, int);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1253 break;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1254 case 'f': // float
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1255 fnumber = va_arg (args_copy, double);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1256 break;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1257 default:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1258 break;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1259 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1260 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1261 va_end (args_copy);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1262 va_end (args);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1263 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1264 ]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1265 [[
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1266 // Check bool.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1267 _Bool success = false;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1268
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1269 // Check restrict.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1270 if (test_restrict ("String literal") == 0)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1271 success = true;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1272 char *restrict newvar = "Another string";
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1273
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1274 // Check varargs.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1275 test_varargs ("s, d' f .", "string", 65, 34.234);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1276 test_varargs_macros ();
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1277
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1278 // Check flexible array members.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1279 struct incomplete_array *ia =
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1280 malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1281 ia->datasize = 10;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1282 for (int i = 0; i < ia->datasize; ++i)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1283 ia->data[i] = i * 1.234;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1284
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1285 // Check named initializers.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1286 struct named_init ni = {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1287 .number = 34,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1288 .name = L"Test wide string",
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1289 .average = 543.34343,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1290 };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1291
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1292 ni.number = 58;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1293
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1294 int dynamic_array[ni.number];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1295 dynamic_array[ni.number - 1] = 543;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1296
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1297 // work around unused variable warnings
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1298 return (!success \|\| bignum == 0LL \|\| ubignum == 0uLL \|\| newvar[0] == 'x'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1299 \|\| dynamic_array[ni.number - 1] != 543);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1300 ]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1301 dnl Try
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1302 dnl GCC -std=gnu99 (unused restrictive modes: -std=c99 -std=iso9899:1999)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1303 dnl AIX -qlanglvl=extc99 (unused restrictive mode: -qlanglvl=stdc99)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1304 dnl HP cc -AC99
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1305 dnl Intel ICC -std=c99, -c99 (deprecated)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1306 dnl IRIX -c99
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1307 dnl Solaris -xc99=all (Forte Developer 7 C mishandles -xc99 on Solaris 9,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1308 dnl as it incorrectly assumes C99 semantics for library functions)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1309 dnl Tru64 -c99
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1310 dnl with extended modes being tried first.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1311 [[-std=gnu99 -std=c99 -c99 -AC99 -xc99=all -qlanglvl=extc99]], [$1], [$2])[]dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1312 ])# _AC_PROG_CC_C99
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1313
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1314
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1315 # AC_PROG_CC_C89
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1316 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1317 AC_DEFUN([AC_PROG_CC_C89],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1318 [ AC_REQUIRE([AC_PROG_CC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1319 _AC_PROG_CC_C89
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1320 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1321
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1322
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1323 # AC_PROG_CC_C99
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1324 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1325 AC_DEFUN([AC_PROG_CC_C99],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1326 [ AC_REQUIRE([AC_PROG_CC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1327 _AC_PROG_CC_C99
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1328 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1329
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1330
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1331 # AC_PROG_CC_STDC
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1332 # ---------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1333 AC_DEFUN([AC_PROG_CC_STDC],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1334 [ AC_REQUIRE([AC_PROG_CC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1335 AS_CASE([$ac_cv_prog_cc_stdc],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1336 [no], [ac_cv_prog_cc_c99=no; ac_cv_prog_cc_c89=no],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1337 [_AC_PROG_CC_C99([ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1338 [_AC_PROG_CC_C89([ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1339 [ac_cv_prog_cc_stdc=no])])])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1340 AC_MSG_CHECKING([for $CC option to accept ISO Standard C])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1341 AC_CACHE_VAL([ac_cv_prog_cc_stdc], [])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1342 AS_CASE([$ac_cv_prog_cc_stdc],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1343 [no], [AC_MSG_RESULT([unsupported])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1344 [''], [AC_MSG_RESULT([none needed])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1345 [AC_MSG_RESULT([$ac_cv_prog_cc_stdc])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1346 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1347
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1348
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1349 # AC_C_BACKSLASH_A
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1350 # ----------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1351 AC_DEFUN([AC_C_BACKSLASH_A],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1352 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1353 AC_CACHE_CHECK([whether backslash-a works in strings], ac_cv_c_backslash_a,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1354 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1355 [[
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1356 #if '\a' == 'a'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1357 syntax error;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1358 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1359 char buf['\a' == 'a' ? -1 : 1];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1360 buf[0] = '\a';
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1361 return buf[0] != "\a"[0];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1362 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1363 [ac_cv_c_backslash_a=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1364 [ac_cv_c_backslash_a=no])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1365 if test $ac_cv_c_backslash_a = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1366 AC_DEFINE(HAVE_C_BACKSLASH_A, 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1367 [Define if backslash-a works in C strings.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1368 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1369 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1370
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1371
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1372 # AC_C_CROSS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1373 # ----------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1374 # Has been merged into AC_PROG_CC.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1375 AU_DEFUN([AC_C_CROSS], [])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1376
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1377
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1378 # AC_C_CHAR_UNSIGNED
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1379 # ------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1380 AC_DEFUN([AC_C_CHAR_UNSIGNED],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1381 [AH_VERBATIM([__CHAR_UNSIGNED__],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1382 [/* Define to 1 if type `char' is unsigned and you are not using gcc. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1383 #ifndef __CHAR_UNSIGNED__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1384 # undef __CHAR_UNSIGNED__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1385 #endif])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1386 AC_CACHE_CHECK(whether char is unsigned, ac_cv_c_char_unsigned,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1387 [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1388 [((char) -1) < 0])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1389 ac_cv_c_char_unsigned=no, ac_cv_c_char_unsigned=yes)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1390 if test $ac_cv_c_char_unsigned = yes && test "$GCC" != yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1391 AC_DEFINE(__CHAR_UNSIGNED__)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1392 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1393 ])# AC_C_CHAR_UNSIGNED
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1394
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1395
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1396 # AC_C_BIGENDIAN ([ACTION-IF-TRUE], [ACTION-IF-FALSE], [ACTION-IF-UNKNOWN],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1397 # [ACTION-IF-UNIVERSAL])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1398 # -------------------------------------------------------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1399 AC_DEFUN([AC_C_BIGENDIAN],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1400 [AH_VERBATIM([WORDS_BIGENDIAN],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1401 [/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1402 significant byte first (like Motorola and SPARC, unlike Intel). */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1403 #if defined AC_APPLE_UNIVERSAL_BUILD
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1404 # if defined __BIG_ENDIAN__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1405 # define WORDS_BIGENDIAN 1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1406 # endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1407 #else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1408 # ifndef WORDS_BIGENDIAN
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1409 # undef WORDS_BIGENDIAN
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1410 # endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1411 #endif])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1412 AC_CACHE_CHECK([whether byte ordering is bigendian], [ac_cv_c_bigendian],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1413 [ac_cv_c_bigendian=unknown
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1414 # See if we're dealing with a universal compiler.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1415 AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1416 [AC_LANG_SOURCE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1417 [[#ifndef __APPLE_CC__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1418 not a universal capable compiler
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1419 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1420 typedef int dummy;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1421 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1422 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1423 # Check for potential -arch flags. It is not universal unless
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1424 # there are some -arch flags. Note that ppc also matches
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1425 # ppc64. This check is also rather less than ideal.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1426 case "${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}" in #(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1427 -archppc\|-archi386\|-archx86_64*) ac_cv_c_bigendian=universal;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1428 esac])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1429 if test $ac_cv_c_bigendian = unknown; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1430 # See if sys/param.h defines the BYTE_ORDER macro.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1431 AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1432 [AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1433 [[#include <sys/types.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1434 #include <sys/param.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1435 ]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1436 [[#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1437 && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1438 && LITTLE_ENDIAN)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1439 bogus endian macros
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1440 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1441 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1442 [# It does; now see whether it defined to BIG_ENDIAN or not.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1443 AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1444 [AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1445 [[#include <sys/types.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1446 #include <sys/param.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1447 ]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1448 [[#if BYTE_ORDER != BIG_ENDIAN
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1449 not big endian
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1450 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1451 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1452 [ac_cv_c_bigendian=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1453 [ac_cv_c_bigendian=no])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1454 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1455 if test $ac_cv_c_bigendian = unknown; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1456 # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris).
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1457 AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1458 [AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1459 [[#include <limits.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1460 ]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1461 [[#if ! (defined _LITTLE_ENDIAN \|\| defined _BIG_ENDIAN)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1462 bogus endian macros
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1463 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1464 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1465 [# It does; now see whether it defined to _BIG_ENDIAN or not.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1466 AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1467 [AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1468 [[#include <limits.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1469 ]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1470 [[#ifndef _BIG_ENDIAN
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1471 not big endian
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1472 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1473 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1474 [ac_cv_c_bigendian=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1475 [ac_cv_c_bigendian=no])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1476 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1477 if test $ac_cv_c_bigendian = unknown; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1478 # Compile a test program.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1479 AC_RUN_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1480 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1481 [[
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1482 /* Are we little or big endian? From Harbison&Steele. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1483 union
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1484 {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1485 long int l;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1486 char c[sizeof (long int)];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1487 } u;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1488 u.l = 1;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1489 return u.c[sizeof (long int) - 1] == 1;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1490 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1491 [ac_cv_c_bigendian=no],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1492 [ac_cv_c_bigendian=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1493 [# Try to guess by grepping values from an object file.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1494 AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1495 [AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1496 [[short int ascii_mm[] =
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1497 { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1498 short int ascii_ii[] =
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1499 { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1500 int use_ascii (int i) {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1501 return ascii_mm[i] + ascii_ii[i];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1502 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1503 short int ebcdic_ii[] =
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1504 { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1505 short int ebcdic_mm[] =
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1506 { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1507 int use_ebcdic (int i) {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1508 return ebcdic_mm[i] + ebcdic_ii[i];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1509 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1510 extern int foo;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1511 ]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1512 [[return use_ascii (foo) == use_ebcdic (foo);]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1513 [if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1514 ac_cv_c_bigendian=yes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1515 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1516 if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1517 if test "$ac_cv_c_bigendian" = unknown; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1518 ac_cv_c_bigendian=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1519 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1520 # finding both strings is unlikely to happen, but who knows?
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1521 ac_cv_c_bigendian=unknown
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1522 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1523 fi])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1524 fi])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1525 case $ac_cv_c_bigendian in #(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1526 yes)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1527 m4_default([$1],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1528 [AC_DEFINE([WORDS_BIGENDIAN], 1)]);; #(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1529 no)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1530 $2 ;; #(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1531 universal)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1532 dnl Note that AC_APPLE_UNIVERSAL_BUILD sorts less than WORDS_BIGENDIAN;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1533 dnl this is a necessity for proper config header operation. Warn if
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1534 dnl the user did not specify a config header but is relying on the
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1535 dnl default behavior for universal builds.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1536 m4_default([$4],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1537 [AC_CONFIG_COMMANDS_PRE([m4_ifset([AH_HEADER], [],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1538 [AC_DIAGNOSE([obsolete],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1539 [AC_C_BIGENDIAN should be used with AC_CONFIG_HEADERS])])])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1540 AC_DEFINE([AC_APPLE_UNIVERSAL_BUILD],1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1541 [Define if building universal (internal helper macro)])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1542 ;; #(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1543 *)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1544 m4_default([$3],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1545 [AC_MSG_ERROR([unknown endianness
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1546 presetting ac_cv_c_bigendian=no (or yes) will help])]) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1547 esac
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1548 ])# AC_C_BIGENDIAN
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1549
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1550
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1551 # AC_C_INLINE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1552 # -----------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1553 # Do nothing if the compiler accepts the inline keyword.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1554 # Otherwise define inline to __inline__ or __inline if one of those work,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1555 # otherwise define inline to be empty.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1556 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1557 # HP C version B.11.11.04 doesn't allow a typedef as the return value for an
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1558 # inline function, only builtin types.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1559 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1560 AN_IDENTIFIER([inline], [AC_C_INLINE])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1561 AC_DEFUN([AC_C_INLINE],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1562 [AC_CACHE_CHECK([for inline], ac_cv_c_inline,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1563 [ac_cv_c_inline=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1564 for ac_kw in inline __inline__ __inline; do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1565 AC_COMPILE_IFELSE([AC_LANG_SOURCE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1566 [#ifndef __cplusplus
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1567 typedef int foo_t;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1568 static $ac_kw foo_t static_foo () {return 0; }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1569 $ac_kw foo_t foo () {return 0; }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1570 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1571 ])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1572 [ac_cv_c_inline=$ac_kw])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1573 test "$ac_cv_c_inline" != no && break
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1574 done
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1575 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1576 AH_VERBATIM([inline],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1577 [/* Define to `__inline__' or `__inline' if that's what the C compiler
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1578 calls it, or to nothing if 'inline' is not supported under any name. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1579 #ifndef __cplusplus
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1580 #undef inline
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1581 #endif])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1582 case $ac_cv_c_inline in
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1583 inline \| yes) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1584 *)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1585 case $ac_cv_c_inline in
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1586 no) ac_val=;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1587 *) ac_val=$ac_cv_c_inline;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1588 esac
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1589 cat >>confdefs.h <<_ACEOF
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1590 #ifndef __cplusplus
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1591 #define inline $ac_val
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1592 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1593 _ACEOF
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1594 ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1595 esac
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1596 ])# AC_C_INLINE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1597
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1598
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1599 # AC_C_CONST
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1600 # ----------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1601 AC_DEFUN([AC_C_CONST],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1602 [AC_CACHE_CHECK([for an ANSI C-conforming const], ac_cv_c_const,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1603 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1604 [[/* FIXME: Include the comments suggested by Paul. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1605 #ifndef __cplusplus
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1606 /* Ultrix mips cc rejects this. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1607 typedef int charset[2];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1608 const charset cs;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1609 /* SunOS 4.1.1 cc rejects this. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1610 char const const pcpcc;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1611 char **ppc;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1612 /* NEC SVR4.0.2 mips cc rejects this. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1613 struct point {int x, y;};
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1614 static struct point const zero = {0,0};
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1615 /* AIX XL C 1.02.0.0 rejects this.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1616 It does not let you subtract one const X* pointer from another in
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1617 an arm of an if-expression whose if-part is not a constant
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1618 expression */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1619 const char *g = "string";
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1620 pcpcc = &g + (g ? g-g : 0);
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1621 /* HPUX 7.0 cc rejects these. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1622 ++pcpcc;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1623 ppc = (char**) pcpcc;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1624 pcpcc = (char const const ) ppc;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1625 { /* SCO 3.2v4 cc rejects this. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1626 char *t;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1627 char const s = 0 ? (char ) 0 : (char const *) 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1628
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1629 *t++ = 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1630 if (s) return 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1631 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1632 { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1633 int x[] = {25, 17};
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1634 const int *foo = &x[0];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1635 ++foo;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1636 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1637 { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1638 typedef const int *iptr;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1639 iptr p = 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1640 ++p;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1641 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1642 { /* AIX XL C 1.02.0.0 rejects this saying
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1643 "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1644 struct s { int j; const int *ap[3]; };
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1645 struct s *b; b->j = 5;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1646 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1647 { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1648 const int foo = 10;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1649 if (!foo) return 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1650 }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1651 return !cs[0] && !zero.x;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1652 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1653 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1654 [ac_cv_c_const=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1655 [ac_cv_c_const=no])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1656 if test $ac_cv_c_const = no; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1657 AC_DEFINE(const,,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1658 [Define to empty if `const' does not conform to ANSI C.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1659 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1660 ])# AC_C_CONST
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1661
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1662
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1663 # AC_C_RESTRICT
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1664 # -------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1665 # based on acx_restrict.m4, from the GNU Autoconf Macro Archive at:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1666 # http://autoconf-archive.cryp.to/acx_restrict.html
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1667 #
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1668 # Determine whether the C/C++ compiler supports the "restrict" keyword
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1669 # introduced in ANSI C99, or an equivalent. Define "restrict" to the alternate
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1670 # spelling, if any; these are more likely to work in both C and C++ compilers of
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1671 # the same family, and in the presence of varying compiler options. If only
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1672 # plain "restrict" works, do nothing. Here are some variants:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1673 # - GCC supports both __restrict and __restrict__
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1674 # - older DEC Alpha C compilers support only __restrict
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1675 # - _Restrict is the only spelling accepted by Sun WorkShop 6 update 2 C
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1676 # Otherwise, define "restrict" to be empty.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1677 AN_IDENTIFIER([restrict], [AC_C_RESTRICT])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1678 AC_DEFUN([AC_C_RESTRICT],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1679 [AC_CACHE_CHECK([for C/C++ restrict keyword], ac_cv_c_restrict,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1680 [ac_cv_c_restrict=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1681 # The order here caters to the fact that C++ does not require restrict.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1682 for ac_kw in __restrict __restrict__ _Restrict restrict; do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1683 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1684 [[typedef int * int_ptr;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1685 int foo (int_ptr $ac_kw ip) {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1686 return ip[0];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1687 }]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1688 [[int s[1];
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1689 int * $ac_kw t = s;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1690 t[0] = 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1691 return foo(t)]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1692 [ac_cv_c_restrict=$ac_kw])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1693 test "$ac_cv_c_restrict" != no && break
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1694 done
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1695 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1696 AH_VERBATIM([restrict],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1697 [/* Define to the equivalent of the C99 'restrict' keyword, or to
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1698 nothing if this is not supported. Do not define if restrict is
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1699 supported directly. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1700 #undef restrict
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1701 /* Work around a bug in Sun C++: it does not support _Restrict, even
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1702 though the corresponding Sun C compiler does, which causes
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1703 "#define restrict _Restrict" in the previous line. Perhaps some future
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1704 version of Sun C++ will work with _Restrict; if so, it'll probably
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1705 define __RESTRICT, just as Sun C does. */
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1706 #if defined __SUNPRO_CC && !defined __RESTRICT
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1707 # define _Restrict
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1708 #endif])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1709 case $ac_cv_c_restrict in
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1710 restrict) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1711 no) AC_DEFINE([restrict], []) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1712 *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1713 esac
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1714 ])# AC_C_RESTRICT
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1715
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1716
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1717 # AC_C_VOLATILE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1718 # -------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1719 # Note that, unlike const, #defining volatile to be the empty string can
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1720 # actually turn a correct program into an incorrect one, since removing
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1721 # uses of volatile actually grants the compiler permission to perform
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1722 # optimizations that could break the user's code. So, do not #define
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1723 # volatile away unless it is really necessary to allow the user's code
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1724 # to compile cleanly. Benign compiler failures should be tolerated.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1725 AC_DEFUN([AC_C_VOLATILE],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1726 [AC_CACHE_CHECK([for working volatile], ac_cv_c_volatile,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1727 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1728 volatile int x;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1729 int * volatile y = (int *) 0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1730 return !x && !y;])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1731 [ac_cv_c_volatile=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1732 [ac_cv_c_volatile=no])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1733 if test $ac_cv_c_volatile = no; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1734 AC_DEFINE(volatile,,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1735 [Define to empty if the keyword `volatile' does not work.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1736 Warning: valid code using `volatile' can become incorrect
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1737 without. Disable with care.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1738 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1739 ])# AC_C_VOLATILE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1740
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1741
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1742 # AC_C_STRINGIZE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1743 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1744 # Checks if `#' can be used to glue strings together at the CPP level.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1745 # Defines HAVE_STRINGIZE if positive.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1746 AC_DEFUN([AC_C_STRINGIZE],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1747 [AC_CACHE_CHECK([for preprocessor stringizing operator],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1748 [ac_cv_c_stringize],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1749 [AC_EGREP_CPP([@%:@teststring],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1750 [@%:@define x(y) #y
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1751
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1752 char *s = x(teststring);],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1753 [ac_cv_c_stringize=no],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1754 [ac_cv_c_stringize=yes])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1755 if test $ac_cv_c_stringize = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1756 AC_DEFINE(HAVE_STRINGIZE, 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1757 [Define to 1 if cpp supports the ANSI @%:@ stringizing operator.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1758 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1759 ])# AC_C_STRINGIZE
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1760
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1761
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1762 # AC_C_PROTOTYPES
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1763 # ---------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1764 # Check if the C compiler supports prototypes, included if it needs
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1765 # options.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1766 AC_DEFUN([AC_C_PROTOTYPES],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1767 [AC_REQUIRE([AC_PROG_CC])dnl
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1768 AC_MSG_CHECKING([for function prototypes])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1769 if test "$ac_cv_prog_cc_c89" != no; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1770 AC_MSG_RESULT([yes])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1771 AC_DEFINE(PROTOTYPES, 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1772 [Define to 1 if the C compiler supports function prototypes.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1773 AC_DEFINE(__PROTOTYPES, 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1774 [Define like PROTOTYPES; this can be used by system headers.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1775 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1776 AC_MSG_RESULT([no])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1777 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1778 ])# AC_C_PROTOTYPES
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1779
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1780
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1781 # AC_C_FLEXIBLE_ARRAY_MEMBER
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1782 # --------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1783 # Check whether the C compiler supports flexible array members.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1784 AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1785 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1786 AC_CACHE_CHECK([for flexible array members],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1787 ac_cv_c_flexmember,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1788 [AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1789 [AC_LANG_PROGRAM(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1790 [[#include <stdlib.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1791 #include <stdio.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1792 #include <stddef.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1793 struct s { int n; double d[]; };]],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1794 [[int m = getchar ();
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1795 struct s *p = malloc (offsetof (struct s, d)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1796 + m * sizeof (double));
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1797 p->d[0] = 0.0;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1798 return p->d != (double *) NULL;]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1799 [ac_cv_c_flexmember=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1800 [ac_cv_c_flexmember=no])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1801 if test $ac_cv_c_flexmember = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1802 AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1803 [Define to nothing if C supports flexible array members, and to
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1804 1 if it does not. That way, with a declaration like `struct s
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1805 { int n; double d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1806 can be used with pre-C99 compilers.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1807 When computing the size of such an object, don't use 'sizeof (struct s)'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1808 as it overestimates the size. Use 'offsetof (struct s, d)' instead.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1809 Don't use 'offsetof (struct s, d@<:@0@:>@)', as this doesn't work with
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1810 MSVC and with C++ compilers.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1811 else
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1812 AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], 1)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1813 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1814 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1815
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1816
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1817 # AC_C_VARARRAYS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1818 # --------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1819 # Check whether the C compiler supports variable-length arrays.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1820 AC_DEFUN([AC_C_VARARRAYS],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1821 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1822 AC_CACHE_CHECK([for variable-length arrays],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1823 ac_cv_c_vararrays,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1824 [AC_COMPILE_IFELSE(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1825 [AC_LANG_PROGRAM([],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1826 [[static int x; char a[++x]; a[sizeof a - 1] = 0; return a[0];]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1827 [ac_cv_c_vararrays=yes],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1828 [ac_cv_c_vararrays=no])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1829 if test $ac_cv_c_vararrays = yes; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1830 AC_DEFINE([HAVE_C_VARARRAYS], 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1831 [Define to 1 if C supports variable-length arrays.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1832 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1833 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1834
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1835
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1836 # AC_C_TYPEOF
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1837 # -----------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1838 # Check if the C compiler supports GCC's typeof syntax.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1839 # The test case provokes incompatibilities in the Sun C compilers
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1840 # (both Solaris 8 and Solaris 10).
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1841 AC_DEFUN([AC_C_TYPEOF],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1842 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1843 AC_CACHE_CHECK([for typeof syntax and keyword spelling], ac_cv_c_typeof,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1844 [ac_cv_c_typeof=no
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1845 for ac_kw in typeof __typeof__ no; do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1846 test $ac_kw = no && break
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1847 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1848 [[
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1849 int value;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1850 typedef struct {
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1851 char a [1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1852 + ! (($ac_kw (value))
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1853 (($ac_kw (value)) 0 < ($ac_kw (value)) -1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1854 ? ($ac_kw (value)) - 1
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1855 : ~ (~ ($ac_kw (value)) 0
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1856 << sizeof ($ac_kw (value)))))]; }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1857 ac__typeof_type_;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1858 return
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1859 (! ((void) ((ac__typeof_type_ *) 0), 0));
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1860 ]])],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1861 [ac_cv_c_typeof=$ac_kw])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1862 test $ac_cv_c_typeof != no && break
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1863 done])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1864 if test $ac_cv_c_typeof != no; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1865 AC_DEFINE([HAVE_TYPEOF], 1,
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1866 [Define to 1 if typeof works with your compiler.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1867 if test $ac_cv_c_typeof != typeof; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1868 AC_DEFINE_UNQUOTED([typeof], [$ac_cv_c_typeof],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1869 [Define to __typeof__ if your compiler spells it that way.])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1870 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1871 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1872 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1873
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1874
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1875 # _AC_LANG_OPENMP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1876 # ---------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1877 # Expands to some language dependent source code for testing the presence of
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1878 # OpenMP.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1879 AC_DEFUN([_AC_LANG_OPENMP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1880 [_AC_LANG_DISPATCH([$0], _AC_LANG, $@)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1881
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1882 # _AC_LANG_OPENMP(C)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1883 # ------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1884 m4_define([_AC_LANG_OPENMP(C)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1885 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1886 #ifndef _OPENMP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1887 choke me
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1888 #endif
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1889 #include <omp.h>
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1890 int main () { return omp_get_num_threads (); }
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1891 ])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1892
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1893 # _AC_LANG_OPENMP(C++)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1894 # --------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1895 m4_copy([_AC_LANG_OPENMP(C)], [_AC_LANG_OPENMP(C++)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1896
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1897 # _AC_LANG_OPENMP(Fortran 77)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1898 # ---------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1899 m4_define([_AC_LANG_OPENMP(Fortran 77)],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1900 [AC_LANG_FUNC_LINK_TRY([omp_get_num_threads])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1901
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1902 # _AC_LANG_OPENMP(Fortran)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1903 # ---------------------------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1904 m4_copy([_AC_LANG_OPENMP(Fortran 77)], [_AC_LANG_OPENMP(Fortran)])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1905
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1906 # AC_OPENMP
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1907 # ---------
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1908 # Check which options need to be passed to the C compiler to support OpenMP.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1909 # Set the OPENMP_CFLAGS / OPENMP_CXXFLAGS / OPENMP_FFLAGS variable to these
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1910 # options.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1911 # The options are necessary at compile time (so the #pragmas are understood)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1912 # and at link time (so the appropriate library is linked with).
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1913 # This macro takes care to not produce redundant options if $CC $CFLAGS already
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1914 # supports OpenMP. It also is careful to not pass options to compilers that
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1915 # misinterpret them; for example, most compilers accept "-openmp" and create
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1916 # an output file called 'penmp' rather than activating OpenMP support.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1917 AC_DEFUN([AC_OPENMP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1918 [
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1919 OPENMP_[]_AC_LANG_PREFIX[]FLAGS=
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1920 AC_ARG_ENABLE([openmp],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1921 [AS_HELP_STRING([--disable-openmp], [do not use OpenMP])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1922 if test "$enable_openmp" != no; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1923 AC_CACHE_CHECK([for $CC option to support OpenMP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1924 [ac_cv_prog_[]_AC_LANG_ABBREV[]_openmp],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1925 [AC_LINK_IFELSE([_AC_LANG_OPENMP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1926 [ac_cv_prog_[]_AC_LANG_ABBREV[]_openmp='none needed'],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1927 [ac_cv_prog_[]_AC_LANG_ABBREV[]_openmp='unsupported'
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1928 dnl Try these flags:
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1929 dnl GCC >= 4.2 -fopenmp
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1930 dnl SunPRO C -xopenmp
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1931 dnl Intel C -openmp
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1932 dnl SGI C, PGI C -mp
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1933 dnl Tru64 Compaq C -omp
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1934 dnl IBM C (AIX, Linux) -qsmp=omp
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1935 dnl If in this loop a compiler is passed an option that it doesn't
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1936 dnl understand or that it misinterprets, the AC_LINK_IFELSE test
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1937 dnl will fail (since we know that it failed without the option),
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1938 dnl therefore the loop will continue searching for an option, and
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1939 dnl no output file called 'penmp' or 'mp' is created.
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1940 for ac_option in -fopenmp -xopenmp -openmp -mp -omp -qsmp=omp; do
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1941 ac_save_[]_AC_LANG_PREFIX[]FLAGS=$[]_AC_LANG_PREFIX[]FLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1942 _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $ac_option"
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1943 AC_LINK_IFELSE([_AC_LANG_OPENMP],
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1944 [ac_cv_prog_[]_AC_LANG_ABBREV[]_openmp=$ac_option])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1945 _AC_LANG_PREFIX[]FLAGS=$ac_save_[]_AC_LANG_PREFIX[]FLAGS
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1946 if test "$ac_cv_prog_[]_AC_LANG_ABBREV[]_openmp" != unsupported; then
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1947 break
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1948 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1949 done])])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1950 case $ac_cv_prog_[]_AC_LANG_ABBREV[]_openmp in #(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1951 "none needed" \| unsupported)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1952 ;; #(
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1953 *)
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1954 OPENMP_[]_AC_LANG_PREFIX[]FLAGS=$ac_cv_prog_[]_AC_LANG_ABBREV[]_openmp ;;
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1955 esac
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1956 fi
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1957 AC_SUBST([OPENMP_]_AC_LANG_PREFIX[FLAGS])
106a409ceeef This is crazy. In order to override the default optimization for GCC, Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1958 ])

Mercurial > sdl-ios-xcode

annotate acinclude/c.m4 @ 3376:106a409ceeef