mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-25 09:17:12 +01:00
55f18d3625
Stian Skjelstad check if $sdl_framework is set, before checking if directory exists Patch that was merged here https://hg.libsdl.org/SDL/rev/ad4968de54ec made it impossible for the SDL2 detection to fail, since one of the if statements fails to check if a variable is set or not. if test -d $sdl_framework; then can evaluate to true in some shells. I guess it falls into undefined behaviour when looking at the POSIX standard.
235 lines
7.9 KiB
Plaintext
235 lines
7.9 KiB
Plaintext
# Configure paths for SDL
|
|
# Sam Lantinga 9/21/99
|
|
# stolen from Manish Singh
|
|
# stolen back from Frank Belew
|
|
# stolen from Manish Singh
|
|
# Shamelessly stolen from Owen Taylor
|
|
#
|
|
# Changelog:
|
|
# * also look for SDL2.framework under Mac OS X
|
|
|
|
# serial 1
|
|
|
|
dnl AM_PATH_SDL2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
|
|
dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
|
|
dnl
|
|
AC_DEFUN([AM_PATH_SDL2],
|
|
[dnl
|
|
dnl Get the cflags and libraries from the sdl2-config script
|
|
dnl
|
|
AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)],
|
|
sdl_prefix="$withval", sdl_prefix="")
|
|
AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
|
|
sdl_exec_prefix="$withval", sdl_exec_prefix="")
|
|
AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program],
|
|
, enable_sdltest=yes)
|
|
AC_ARG_ENABLE(sdlframework, [ --disable-sdlframework Do not search for SDL2.framework],
|
|
, search_sdl_framework=yes)
|
|
|
|
AC_ARG_VAR(SDL2_FRAMEWORK, [Path to SDL2.framework])
|
|
|
|
min_sdl_version=ifelse([$1], ,2.0.0,$1)
|
|
|
|
if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
|
|
PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version],
|
|
[sdl_pc=yes],
|
|
[sdl_pc=no])
|
|
else
|
|
sdl_pc=no
|
|
if test x$sdl_exec_prefix != x ; then
|
|
sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix"
|
|
if test x${SDL2_CONFIG+set} != xset ; then
|
|
SDL2_CONFIG=$sdl_exec_prefix/bin/sdl2-config
|
|
fi
|
|
fi
|
|
if test x$sdl_prefix != x ; then
|
|
sdl_config_args="$sdl_config_args --prefix=$sdl_prefix"
|
|
if test x${SDL2_CONFIG+set} != xset ; then
|
|
SDL2_CONFIG=$sdl_prefix/bin/sdl2-config
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if test "x$sdl_pc" = xyes ; then
|
|
no_sdl=""
|
|
SDL2_CONFIG="pkg-config sdl2"
|
|
else
|
|
as_save_PATH="$PATH"
|
|
if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then
|
|
PATH="$prefix/bin:$prefix/usr/bin:$PATH"
|
|
fi
|
|
AC_PATH_PROG(SDL2_CONFIG, sdl2-config, no, [$PATH])
|
|
PATH="$as_save_PATH"
|
|
no_sdl=""
|
|
|
|
if test "$SDL2_CONFIG" = "no" -a "x$search_sdl_framework" = "xyes"; then
|
|
AC_MSG_CHECKING(for SDL2.framework)
|
|
if test "x$SDL2_FRAMEWORK" != x; then
|
|
sdl_framework=$SDL2_FRAMEWORK
|
|
else
|
|
for d in / ~/ /System/; do
|
|
if test -d "$dLibrary/Frameworks/SDL2.framework"; then
|
|
sdl_framework="$dLibrary/Frameworks/SDL2.framework"
|
|
fi
|
|
done
|
|
fi
|
|
|
|
if test x"$sdl_framework" != x && test -d "$sdl_framework"; then
|
|
AC_MSG_RESULT($sdl_framework)
|
|
sdl_framework_dir=`dirname $sdl_framework`
|
|
SDL_CFLAGS="-F$sdl_framework_dir -Wl,-framework,SDL2 -I$sdl_framework/include"
|
|
SDL_LIBS="-F$sdl_framework_dir -Wl,-framework,SDL2"
|
|
else
|
|
no_sdl=yes
|
|
fi
|
|
fi
|
|
|
|
if test "$SDL2_CONFIG" != "no"; then
|
|
if test "x$sdl_pc" = "xno"; then
|
|
AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
|
|
SDL_CFLAGS=`$SDL2_CONFIG $sdl_config_args --cflags`
|
|
SDL_LIBS=`$SDL2_CONFIG $sdl_config_args --libs`
|
|
fi
|
|
|
|
sdl_major_version=`$SDL2_CONFIG $sdl_config_args --version | \
|
|
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
|
|
sdl_minor_version=`$SDL2_CONFIG $sdl_config_args --version | \
|
|
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
|
|
sdl_micro_version=`$SDL2_CONFIG $sdl_config_args --version | \
|
|
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
|
|
if test "x$enable_sdltest" = "xyes" ; then
|
|
ac_save_CFLAGS="$CFLAGS"
|
|
ac_save_CXXFLAGS="$CXXFLAGS"
|
|
ac_save_LIBS="$LIBS"
|
|
CFLAGS="$CFLAGS $SDL_CFLAGS"
|
|
CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
|
|
LIBS="$LIBS $SDL_LIBS"
|
|
dnl
|
|
dnl Now check if the installed SDL is sufficiently new. (Also sanity
|
|
dnl checks the results of sdl2-config to some extent
|
|
dnl
|
|
rm -f conf.sdltest
|
|
AC_TRY_RUN([
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "SDL.h"
|
|
|
|
char*
|
|
my_strdup (char *str)
|
|
{
|
|
char *new_str;
|
|
|
|
if (str)
|
|
{
|
|
new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
|
|
strcpy (new_str, str);
|
|
}
|
|
else
|
|
new_str = NULL;
|
|
|
|
return new_str;
|
|
}
|
|
|
|
int main (int argc, char *argv[])
|
|
{
|
|
int major, minor, micro;
|
|
char *tmp_version;
|
|
|
|
/* This hangs on some systems (?)
|
|
system ("touch conf.sdltest");
|
|
*/
|
|
{ FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
|
|
|
|
/* HP/UX 9 (%@#!) writes to sscanf strings */
|
|
tmp_version = my_strdup("$min_sdl_version");
|
|
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
|
|
printf("%s, bad version string\n", "$min_sdl_version");
|
|
exit(1);
|
|
}
|
|
|
|
if (($sdl_major_version > major) ||
|
|
(($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
|
|
(($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
|
|
{
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
printf("\n*** 'sdl2-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
|
|
printf("*** of SDL required is %d.%d.%d. If sdl2-config is correct, then it is\n", major, minor, micro);
|
|
printf("*** best to upgrade to the required version.\n");
|
|
printf("*** If sdl2-config was wrong, set the environment variable SDL2_CONFIG\n");
|
|
printf("*** to point to the correct copy of sdl2-config, and remove the file\n");
|
|
printf("*** config.cache before re-running configure\n");
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
|
|
CFLAGS="$ac_save_CFLAGS"
|
|
CXXFLAGS="$ac_save_CXXFLAGS"
|
|
LIBS="$ac_save_LIBS"
|
|
|
|
fi
|
|
if test "x$sdl_pc" = "xno"; then
|
|
if test "x$no_sdl" = "xyes"; then
|
|
AC_MSG_RESULT(no)
|
|
else
|
|
AC_MSG_RESULT(yes)
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
if test "x$no_sdl" = x ; then
|
|
ifelse([$2], , :, [$2])
|
|
else
|
|
if test "$SDL2_CONFIG" = "no" ; then
|
|
echo "*** The sdl2-config script installed by SDL could not be found"
|
|
echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
|
|
echo "*** your path, or set the SDL2_CONFIG environment variable to the"
|
|
echo "*** full path to sdl2-config."
|
|
else
|
|
if test -f conf.sdltest ; then
|
|
:
|
|
else
|
|
echo "*** Could not run SDL test program, checking why..."
|
|
CFLAGS="$CFLAGS $SDL_CFLAGS"
|
|
CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
|
|
LIBS="$LIBS $SDL_LIBS"
|
|
AC_TRY_LINK([
|
|
#include <stdio.h>
|
|
#include "SDL.h"
|
|
|
|
int main(int argc, char *argv[])
|
|
{ return 0; }
|
|
#undef main
|
|
#define main K_and_R_C_main
|
|
], [ return 0; ],
|
|
[ echo "*** The test program compiled, but did not run. This usually means"
|
|
echo "*** that the run-time linker is not finding SDL or finding the wrong"
|
|
echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
|
|
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
|
|
echo "*** to the installed location Also, make sure you have run ldconfig if that"
|
|
echo "*** is required on your system"
|
|
echo "***"
|
|
echo "*** If you have an old version installed, it is best to remove it, although"
|
|
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
|
|
[ echo "*** The test program failed to compile or link. See the file config.log for the"
|
|
echo "*** exact error that occured. This usually means SDL was incorrectly installed"
|
|
echo "*** or that you have moved SDL since it was installed. In the latter case, you"
|
|
echo "*** may want to edit the sdl2-config script: $SDL2_CONFIG" ])
|
|
CFLAGS="$ac_save_CFLAGS"
|
|
CXXFLAGS="$ac_save_CXXFLAGS"
|
|
LIBS="$ac_save_LIBS"
|
|
fi
|
|
fi
|
|
SDL_CFLAGS=""
|
|
SDL_LIBS=""
|
|
ifelse([$3], , :, [$3])
|
|
fi
|
|
AC_SUBST(SDL_CFLAGS)
|
|
AC_SUBST(SDL_LIBS)
|
|
rm -f conf.sdltest
|
|
])
|