| # 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], , :, [$3]) |
| fi |
| AC_SUBST(SDL_CFLAGS) |
| AC_SUBST(SDL_LIBS) |
| rm -f conf.sdltest |
| ]) |
| # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- |
| # serial 1 (pkg-config-0.24) |
| # |
| # Copyright © 2004 Scott James Remnant <scott@netsplit.com>. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, but |
| # WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| # General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write to the Free Software |
| # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| # |
| # As a special exception to the GNU General Public License, if you |
| # distribute this file as part of a program that contains a |
| # configuration script generated by Autoconf, you may include it under |
| # the same distribution terms that you use for the rest of that program. |
| |
| # PKG_PROG_PKG_CONFIG([MIN-VERSION]) |
| # ---------------------------------- |
| AC_DEFUN([PKG_PROG_PKG_CONFIG], |
| [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) |
| m4_pattern_allow([^PKG_CONFIG(_PATH|_LIBDIR)?$]) |
| AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) |
| AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) |
| AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) |
| |
| if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then |
| AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) |
| fi |
| if test -n "$PKG_CONFIG"; then |
| _pkg_min_version=m4_default([$1], [0.9.0]) |
| AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) |
| if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then |
| AC_MSG_RESULT([yes]) |
| else |
| AC_MSG_RESULT([no]) |
| PKG_CONFIG="" |
| fi |
| fi[]dnl |
| ])# PKG_PROG_PKG_CONFIG |
| |
| # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) |
| # |
| # Check to see whether a particular set of modules exists. Similar |
| # to PKG_CHECK_MODULES(), but does not set variables or print errors. |
| # |
| # Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
| # only at the first occurence in configure.ac, so if the first place |
| # it's called might be skipped (such as if it is within an "if", you |
| # have to call PKG_CHECK_EXISTS manually |
| # -------------------------------------------------------------- |
| AC_DEFUN([PKG_CHECK_EXISTS], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| if test -n "$PKG_CONFIG" && \ |
| AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then |
| m4_default([$2], [:]) |
| m4_ifvaln([$3], [else |
| $3])dnl |
| fi]) |
| |
| # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) |
| # --------------------------------------------- |
| m4_define([_PKG_CONFIG], |
| [if test -n "$$1"; then |
| pkg_cv_[]$1="$$1" |
| elif test -n "$PKG_CONFIG"; then |
| PKG_CHECK_EXISTS([$3], |
| [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], |
| [pkg_failed=yes]) |
| else |
| pkg_failed=untried |
| fi[]dnl |
| ])# _PKG_CONFIG |
| |
| # _PKG_SHORT_ERRORS_SUPPORTED |
| # ----------------------------- |
| AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
| if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then |
| _pkg_short_errors_supported=yes |
| else |
| _pkg_short_errors_supported=no |
| fi[]dnl |
| ])# _PKG_SHORT_ERRORS_SUPPORTED |
| |
| |
| # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], |
| # [ACTION-IF-NOT-FOUND]) |
| # |
| # |
| # Note that if there is a possibility the first call to |
| # PKG_CHECK_MODULES might not happen, you should be sure to include an |
| # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac |
| # |
| # |
| # -------------------------------------------------------------- |
| AC_DEFUN([PKG_CHECK_MODULES], |
| [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
| AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl |
| AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl |
| |
| pkg_failed=no |
| AC_MSG_CHECKING([for $2]) |
| |
| _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) |
| _PKG_CONFIG([$1][_LIBS], [libs], [$2]) |
| |
| m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS |
| and $1[]_LIBS to avoid the need to call pkg-config. |
| See the pkg-config man page for more details.]) |
| |
| if test $pkg_failed = yes; then |
| AC_MSG_RESULT([no]) |
| _PKG_SHORT_ERRORS_SUPPORTED |
| if test $_pkg_short_errors_supported = yes; then |
| $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1` |
| else |
| $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1` |
| fi |
| # Put the nasty error message in config.log where it belongs |
| echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD |
| |
| m4_default([$4], [AC_MSG_ERROR( |
| [Package requirements ($2) were not met: |
| |
| $$1_PKG_ERRORS |
| |
| Consider adjusting the PKG_CONFIG_PATH environment variable if you |
| installed software in a non-standard prefix. |
| |
| _PKG_TEXT])[]dnl |
| ]) |
| elif test $pkg_failed = untried; then |
| AC_MSG_RESULT([no]) |
| m4_default([$4], [AC_MSG_FAILURE( |
| [The pkg-config script could not be found or is too old. Make sure it |
| is in your PATH or set the PKG_CONFIG environment variable to the full |
| path to pkg-config. |
| |
| _PKG_TEXT |
| |
| To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl |
| ]) |
| else |
| $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS |
| $1[]_LIBS=$pkg_cv_[]$1[]_LIBS |
| AC_MSG_RESULT([yes]) |
| $3 |
| fi[]dnl |
| ])# PKG_CHECK_MODULES |