From db01016dd6c07c861a8ba286ae0664af34f7f35f Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Mon, 7 Nov 2022 21:15:30 +0300
Subject: [PATCH] revert replace AM_PATH_SDL2 usage with corresponding
PKG_CHECK_MODULES.
Reference issue: https://github.com/libsdl-org/SDL/issues/6494 .
---
test/acinclude.m4 | 183 ++++++++++++++++++++++++-
test/configure | 333 ++++++++++++++++++++++++++++++++++++++++++++--
test/configure.ac | 5 +-
3 files changed, 507 insertions(+), 14 deletions(-)
diff --git a/test/acinclude.m4 b/test/acinclude.m4
index c8d8f72ab4c0..0fdf353ea29a 100644
--- a/test/acinclude.m4
+++ b/test/acinclude.m4
@@ -1,6 +1,186 @@
+# 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
+
+# serial 2
+
+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)
+
+ 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"
+ AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
+ no_sdl=""
+
+ if test "$SDL2_CONFIG" = "no" ; then
+ no_sdl=yes
+ else
+ SDL_CFLAGS=`$SDL2_CONFIG $sdl_config_args --cflags`
+ SDL_LIBS=`$SDL2_CONFIG $sdl_config_args --libs`
+
+ sdl_major_version=`$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 $SDL_LIBS"
+dnl
+dnl Now check if the installed SDL is sufficiently new. (Also sanity
+dnl checks the results of sdl2-config to some extent
+dnl
+ rm -f conf.sdltest
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <stdlib.h>
+#include "SDL.h"
+
+int main (int argc, char *argv[])
+{
+ int major, minor, micro;
+ FILE *fp = fopen("conf.sdltest", "w");
+
+ if (fp) fclose(fp);
+
+ if (sscanf("$min_sdl_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
+ fi
+ if test "x$no_sdl" = x ; then
+ AC_MSG_RESULT(yes)
+ else
+ AC_MSG_RESULT(no)
+ fi
+ fi
+ if test "x$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_LINK_IFELSE([AC_LANG_PROGRAM([[
+#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], , :, [$3])
+ fi
+ AC_SUBST(SDL_CFLAGS)
+ AC_SUBST(SDL_LIBS)
+ rm -f conf.sdltest
+])
# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
# serial 1 (pkg-config-0.24)
-#
+#
# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
#
# This program is free software; you can redistribute it and/or modify
@@ -90,6 +270,7 @@ else
fi[]dnl
])# _PKG_SHORT_ERRORS_SUPPORTED
+
# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
# [ACTION-IF-NOT-FOUND])
#
diff --git a/test/configure b/test/configure
index 41c5f7460cff..c71abe48977f 100755
--- a/test/configure
+++ b/test/configure
@@ -627,6 +627,7 @@ OPENGLES2_TARGETS
OPENGLES1_TARGETS
CPP
XMKMF
+SDL2_CONFIG
SDL_LIBS
SDL_CFLAGS
PKG_CONFIG_LIBDIR
@@ -696,6 +697,9 @@ SHELL'
ac_subst_files=''
ac_user_opts='
enable_option_checking
+with_sdl_prefix
+with_sdl_exec_prefix
+enable_sdltest
with_x
enable_werror
'
@@ -1340,11 +1344,14 @@ Optional Features:
--disable-option-checking ignore unrecognized --enable/--with options
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
+ --disable-sdltest Do not try to compile and run a test SDL program
--enable-werror treat warnings as errors [default=no]
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
--without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)
+ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)
+ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)
--with-x use the X Window System
Some influential environment variables:
@@ -1536,6 +1543,49 @@ fi
} # ac_fn_c_try_link
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
+# executables *can* be run.
+ac_fn_c_try_run ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if { { ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+ (eval "$ac_link") 2>&5
+ ac_status=$?
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+ { { case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+ (eval "$ac_try") 2>&5
+ ac_status=$?
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+then :
+ ac_retval=0
+else $as_nop
+ printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+ printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=$ac_status
+fi
+ rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
# ac_fn_c_try_cpp LINENO
# ----------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
@@ -3800,20 +3850,50 @@ printf "%s\n" "no" >&6; }
fi
fi
+# Check whether --with-sdl-prefix was given.
+if test ${with_sdl_prefix+y}
+then :
+ withval=$with_sdl_prefix; sdl_prefix="$withval"
+else $as_nop
+ sdl_prefix=""
+fi
+
+
+# Check whether --with-sdl-exec-prefix was given.
+if test ${with_sdl_exec_prefix+y}
+then :
+ withval=$with_sdl_exec_prefix; sdl_exec_prefix="$withval"
+else $as_nop
+ sdl_exec_prefix=""
+fi
+
+# Check whether --enable-sdltest was given.
+if test ${enable_sdltest+y}
+then :
+ enableval=$enable_sdltest;
+else $as_nop
+ enable_sdltest=yes
+fi
+
+
+ min_sdl_version=$SDL_VERSION
+
+ if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
+
pkg_failed=no
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sdl2 >= $SDL_VERSION" >&5
-printf %s "checking for sdl2 >= $SDL_VERSION... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sdl2 >= $min_sdl_version" >&5
+printf %s "checking for sdl2 >= $min_sdl_version... " >&6; }
if test -n "$SDL_CFLAGS"; then
pkg_cv_SDL_CFLAGS="$SDL_CFLAGS"
elif test -n "$PKG_CONFIG"; then
if test -n "$PKG_CONFIG" && \
- { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$SDL_VERSION\""; } >&5
- ($PKG_CONFIG --exists --print-errors "sdl2 >= $SDL_VERSION") 2>&5
+ { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; then
- pkg_cv_SDL_CFLAGS=`$PKG_CONFIG --cflags "sdl2 >= $SDL_VERSION" 2>/dev/null`
+ pkg_cv_SDL_CFLAGS=`$PKG_CONFIG --cflags "sdl2 >= $min_sdl_version" 2>/dev/null`
else
pkg_failed=yes
fi
@@ -3824,12 +3904,12 @@ if test -n "$SDL_LIBS"; then
pkg_cv_SDL_LIBS="$SDL_LIBS"
elif test -n "$PKG_CONFIG"; then
if test -n "$PKG_CONFIG" && \
- { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$SDL_VERSION\""; } >&5
- ($PKG_CONFIG --exists --print-errors "sdl2 >= $SDL_VERSION") 2>&5
+ { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; then
- pkg_cv_SDL_LIBS=`$PKG_CONFIG --libs "sdl2 >= $SDL_VERSION" 2>/dev/null`
+ pkg_cv_SDL_LIBS=`$PKG_CONFIG --libs "sdl2 >= $min_sdl_version" 2>/dev/null`
else
pkg_failed=yes
fi
@@ -3849,25 +3929,254 @@ else
_pkg_short_errors_supported=no
fi
if test $_pkg_short_errors_supported = yes; then
- SDL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "sdl2 >= $SDL_VERSION" 2>&1`
+ SDL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "sdl2 >= $min_sdl_version" 2>&1`
else
- SDL_PKG_ERRORS=`$PKG_CONFIG --print-errors "sdl2 >= $SDL_VERSION" 2>&1`
+ SDL_PKG_ERRORS=`$PKG_CONFIG --print-errors "sdl2 >= $min_sdl_version" 2>&1`
fi
# Put the nasty error message in config.log where it belongs
echo "$SDL_PKG_ERRORS" >&5
- as_fn_error $? "*** SDL version $SDL_VERSION not found!" "$LINENO" 5
+ sdl_pc=no
elif test $pkg_failed = untried; then
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
- as_fn_error $? "*** SDL version $SDL_VERSION not found!" "$LINENO" 5
+ sdl_pc=no
else
SDL_CFLAGS=$pkg_cv_SDL_CFLAGS
SDL_LIBS=$pkg_cv_SDL_LIBS
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
+ sdl_pc=yes
+fi
+ else
+ sdl_pc=no
+ if test x$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
+ # Extract the first word of "sdl2-config", so it can be a program name with args.
+set dummy sdl2-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_SDL2_CONFIG+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ case $SDL2_CONFIG in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_SDL2_CONFIG="$SDL2_CONFIG" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ case $as_dir in #(((
+ '') as_dir=./ ;;
+ */) ;;
+ *) as_dir=$as_dir/ ;;
+ esac
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+ ac_cv_path_SDL2_CONFIG="$as_dir$ac_word$ac_exec_ext"
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_path_SDL2_CONFIG" && ac_cv_path_SDL2_CONFIG="no"
+ ;;
+esac
+fi
+SDL2_CONFIG=$ac_cv_path_SDL2_CONFIG
+if test -n "$SDL2_CONFIG"; then
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SDL2_CONFIG" >&5
+printf "%s\n" "$SDL2_CONFIG" >&6; }
+else
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+ PATH="$as_save_PATH"
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SDL - version >= $min_sdl_version" >&5
+printf %s "checking for SDL - version >= $min_sdl_version... " >&6; }
+ no_sdl=""
+
+ if test "$SDL2_CONFIG" = "no" ; then
+ no_sdl=yes
+ else
+ SDL_CFLAGS=`$SDL2_CONFIG $sdl_config_args --cflags`
+ SDL_LIBS=`$SDL2_CONFIG $sdl_config_args --libs`
+
+ sdl_major_version=`$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 $SDL_LIBS"
+ rm -f conf.sdltest
+ if test "$cross_compiling" = yes
+then :
+ echo $ac_n "cross compiling; assumed OK... $ac_c"
+else $as_nop
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "SDL.h"
+
+int main (int argc, char *argv[])
+{
+ int major, minor, micro;
+ FILE *fp = fopen("conf.sdltest", "w");
+
+ if (fp) fclose(fp);
+
+ if (sscanf("$min_sdl_version", "%d.%d.%d", &major, &minor, µ) != 3) {
+ printf("%s, bad version string\n", "$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, $sdl_micro_version);
+ printf("*** of SDL required is %d.%d.%d. If sdl2-config is correct, then it is\n", major, minor, micro);
+ printf("*** best to upgrade to the required version.\n");
+ printf("*** If sdl2-config was wrong, set the environment variable SDL2_CONFIG\n");
+ printf("*** to point to the correct copy of sdl2-config, and remove the file\n");
+ printf("*** config.cache before re-running configure\n");
+ return 1;
+ }
+}
+
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+
+else $as_nop
+ no_sdl=yes
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ CFLAGS="$ac_save_CFLAGS"
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ if test "x$no_sdl" = x ; then
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+ else
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+ fi
+ fi
+ if test "x$no_sdl" = x ; then
+ :
+ else
+ if test "$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 $SDL_LIBS"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <stdio.h>
+#include "SDL.h"
+
+int main(int argc, char *argv[])
+{ return 0; }
+#undef main
+#define main K_and_R_C_main
+
+int
+main (void)
+{
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+ 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"
+else $as_nop
+ 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: $SDL2_CONFIG"
fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+ conftest$ac_exeext conftest.$ac_ext
+ CFLAGS="$ac_save_CFLAGS"
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ SDL_CFLAGS=""
+ SDL_LIBS=""
+ as_fn_error $? "*** SDL version $SDL_VERSION not found!" "$LINENO" 5
+
+ fi
+
+
+ rm -f conf.sdltest
+
CFLAGS="$CFLAGS $SDL_CFLAGS"
LIBS="$LIBS -lSDL2_test $SDL_LIBS"
diff --git a/test/configure.ac b/test/configure.ac
index a613e9f9db79..e9890163e699 100644
--- a/test/configure.ac
+++ b/test/configure.ac
@@ -101,7 +101,10 @@ AC_SUBST(ISOS2)
dnl Check for SDL
SDL_VERSION=2.0.18
-PKG_CHECK_MODULES([SDL], [sdl2 >= $SDL_VERSION],, AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!]))
+AM_PATH_SDL2($SDL_VERSION,
+ :,
+ AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])
+)
CFLAGS="$CFLAGS $SDL_CFLAGS"
LIBS="$LIBS -lSDL2_test $SDL_LIBS"