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view acinclude/ac_check_define.m4 @ 3416:3d50171ac879

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Adam Strzelecki to SDL This patch significantly speeds up make process (mostly noticeable on MinGW+MSYS) canceling implicit rules for dependencies and Makefile.in that caused lot of unnecessary file checks (in case of Windoze those are pretty slow). See "make -d" before and after applying this patch.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 28 Oct 2009 04:33:24 +0000
parents 725b16784e96
children
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line source

define(AC_CHECK_DEFINE,[dnl
  AC_CACHE_CHECK(for $1 in $2, ac_cv_define_$1,
    AC_EGREP_CPP([YES_IS_DEFINED], [
#include <$2>
#ifdef $1
YES_IS_DEFINED
#endif
    ], ac_cv_define_$1=yes, ac_cv_define_$1=no)
  )
  if test "$ac_cv_define_$1" = "yes" ; then
    AC_DEFINE([HAVE_$1],[],[Added by AC_CHECK_DEFINE])
  fi
])dnl
AC_DEFINE([HAVE_$1],[],[Added by AC_CHECK_DEFINE])