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comparison ext/libpng-1.2.29/configure.ac @ 0:4a0efb7baf70

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* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
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-1:000000000000 0:4a0efb7baf70
1 # configure.ac
2
3 dnl Process this file with autoconf to produce a configure script.
4 dnl
5 dnl Minor upgrades (compatible ABI): increment the package version
6 dnl (third field in two places below) and set the PNGLIB_RELEASE
7 dnl variable.
8 dnl
9 dnl Major upgrades (incompatible ABI): increment the package major
10 dnl version (second field, or first if desired), set the minor
11 dnl to 0, set PNGLIB_MAJOR below *and* follow the instructions in
12 dnl Makefile.am to upgrade the package name.
13
14 dnl This is here to prevent earlier autoconf from being used, it
15 dnl should not be necessary to regenerate configure if the time
16 dnl stamps are correct
17 AC_PREREQ(2.59)
18
19 dnl Version number stuff here:
20
21 AC_INIT([libpng], [1.2.29], [png-mng-implement@lists.sourceforge.net])
22 AM_INIT_AUTOMAKE
23 dnl stop configure from automagically running automake
24 AM_MAINTAINER_MODE
25
26 PNGLIB_VERSION=1.2.29
27 PNGLIB_MAJOR=1
28 PNGLIB_MINOR=2
29 PNGLIB_RELEASE=29
30
31 dnl End of version number stuff
32
33 AC_CONFIG_SRCDIR([pngget.c])
34 AM_CONFIG_HEADER(config.h)
35
36 # Checks for programs.
37 AC_PROG_CC
38 AC_PROG_LD
39 AC_PROG_CPP
40 AC_CHECK_TOOL(SED, sed, :)
41 AC_LIBTOOL_WIN32_DLL
42 AC_PROG_INSTALL
43 AC_PROG_LN_S
44 AC_PROG_MAKE_SET
45 AC_PROG_LIBTOOL
46
47 # Checks for header files.
48 AC_HEADER_STDC
49 AC_CHECK_HEADERS([malloc.h stdlib.h string.h strings.h])
50
51 # Checks for typedefs, structures, and compiler characteristics.
52 AC_C_CONST
53 AC_TYPE_SIZE_T
54 AC_STRUCT_TM
55
56 # Checks for library functions.
57 AC_FUNC_STRTOD
58 AC_CHECK_FUNCS([memset], , AC_ERROR([memset not found in libc]))
59 AC_CHECK_FUNCS([pow], , AC_CHECK_LIB(m, pow, , AC_ERROR([cannot find pow])) )
60 AC_CHECK_LIB(z, zlibVersion, , AC_ERROR([zlib not installed]))
61
62 LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG
63 AC_MSG_CHECKING(
64 [if assembler code in pnggccrd.c can be compiled without PNG_NO_MMX_CODE])
65 AC_TRY_COMPILE(
66 [#include "$srcdir/pnggccrd.c"],
67 [return 0;],
68 AC_MSG_RESULT(yes)
69 LIBPNG_NO_MMX="",
70 AC_MSG_RESULT(no)
71 LIBPNG_NO_MMX=-DPNG_NO_MMX_CODE)
72 LIBPNG_DEFINES=$LIBPNG_DEFINES\ $LIBPNG_NO_MMX
73 AC_SUBST(LIBPNG_DEFINES)
74 AC_SUBST(LIBPNG_NO_MMX)
75
76 AC_MSG_CHECKING([if libraries can be versioned])
77 GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
78 if test "$GLD"; then
79 have_ld_version_script=yes
80 AC_MSG_RESULT(yes)
81 else
82 have_ld_version_script=no
83 AC_MSG_RESULT(no)
84 AC_MSG_WARN(*** You have not enabled versioned symbols.)
85 fi
86 AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
87
88 if test "$have_ld_version_script" = "yes"; then
89 AC_MSG_CHECKING([for symbol prefix])
90 SYMBOL_PREFIX=`echo "PREFIX=__USER_LABEL_PREFIX__" \
91 | ${CPP-${CC-gcc} -E} - 2>&1 \
92 | ${EGREP-grep} "^PREFIX=" \
93 | ${SED-sed} "s:^PREFIX=::"`
94 AC_SUBST(SYMBOL_PREFIX)
95 AC_MSG_RESULT($SYMBOL_PREFIX)
96 fi
97
98 # Substitutions for .in files
99 AC_SUBST(PNGLIB_VERSION)
100 AC_SUBST(PNGLIB_MAJOR)
101 AC_SUBST(PNGLIB_MINOR)
102 AC_SUBST(PNGLIB_RELEASE)
103
104 # Additional arguments (and substitutions)
105 # Allow the pkg-config directory to be set
106 AC_ARG_WITH(pkgconfigdir,
107 AC_HELP_STRING([--with-pkgconfigdir],
108 [Use the specified pkgconfig dir (default is libdir/pkgconfig)]),
109 [pkgconfigdir=${withval}],
110 [pkgconfigdir='${libdir}/pkgconfig'])
111
112 AC_SUBST([pkgconfigdir])
113 AC_MSG_NOTICE([pkgconfig directory is ${pkgconfigdir}])
114
115 # Make the *-config binary config scripts optional
116 AC_ARG_WITH(binconfigs,
117 AC_HELP_STRING([--with-binconfigs],
118 [Generate shell libpng-config scripts as well as pkg-config data]
119 [@<:@default=yes@:>@]),
120 [if test "${withval}" = no; then
121 binconfigs=
122 AC_MSG_NOTICE([libpng-config scripts will not be built])
123 else
124 binconfigs='${binconfigs}'
125 fi],
126 [binconfigs='${binconfigs}'])
127 AC_SUBST([binconfigs])
128
129 # Allow the old version number library, libpng.so, to be removed from
130 # the build
131 AC_ARG_WITH(libpng-compat,
132 AC_HELP_STRING([--with-libpng-compat],
133 [Generate the obsolete libpng.so library @<:@default=yes@:>@]),
134 [if test "${withval}" = no; then
135 compatlib=
136 AC_MSG_NOTICE([libpng.so will not be built])
137 else
138 compatlib=libpng.la
139 fi],
140 [compatlib=libpng.la])
141 AC_SUBST([compatlib])
142
143 # Config files, substituting as above
144 AC_CONFIG_FILES([Makefile libpng.pc:scripts/libpng.pc-configure.in])
145 AC_CONFIG_FILES([libpng-config:scripts/libpng-config.in],
146 [chmod +x libpng-config])
147
148 AC_OUTPUT