1 # Configure paths for SDL 2 # Sam Lantinga 9/21/99 3 # stolen from Manish Singh 4 # stolen back from Frank Belew 5 # stolen from Manish Singh 6 # Shamelessly stolen from Owen Taylor 7 8 # serial 1 9 10 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) 11 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS 12 dnl 13 AC_DEFUN([AM_PATH_SDL2], 14 [dnl 15 dnl Get the cflags and libraries from the sdl2-config script 16 dnl 17 AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)], 18 sdl_prefix="$withval", sdl_prefix="") 19 AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)], 20 sdl_exec_prefix="$withval", sdl_exec_prefix="") 21 AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program], 22 , enable_sdltest=yes) 23 24 min_sdl_version=ifelse([$1], ,0.9.0,$1) 25 26 if test "x$sdl_prefix$sdl_exec_prefix" = x ; then 27 PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version], 28 [sdl_pc=yes], 29 [sdl_pc=no]) 30 else 31 sdl_pc=no 32 if test x$sdl_exec_prefix != x ; then 33 sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix" 34 if test x${SDL_CONFIG+set} != xset ; then 35 SDL_CONFIG=$sdl_exec_prefix/bin/sdl2-config 36 fi 37 fi 38 if test x$sdl_prefix != x ; then 39 sdl_config_args="$sdl_config_args --prefix=$sdl_prefix" 40 if test x${SDL_CONFIG+set} != xset ; then 41 SDL_CONFIG=$sdl_prefix/bin/sdl2-config 42 fi 43 fi 44 fi 45 46 if test "x$sdl_pc" = xyes ; then 47 no_sdl="" 48 SDL_CONFIG="pkg-config sdl2" 49 else 50 as_save_PATH="$PATH" 51 if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then 52 PATH="$prefix/bin:$prefix/usr/bin:$PATH" 53 fi 54 AC_PATH_PROG(SDL_CONFIG, sdl2-config, no, [$PATH]) 55 PATH="$as_save_PATH" 56 AC_MSG_CHECKING(for SDL - version >= $min_sdl_version) 57 no_sdl="" 58 59 if test "$SDL_CONFIG" = "no" ; then 60 no_sdl=yes 61 else 62 SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags` 63 SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs` 64 65 sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \ 66 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` 67 sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \ 68 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` 69 sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \ 70 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` 71 if test "x$enable_sdltest" = "xyes" ; then 72 ac_save_CFLAGS="$CFLAGS" 73 ac_save_CXXFLAGS="$CXXFLAGS" 74 ac_save_LIBS="$LIBS" 75 CFLAGS="$CFLAGS $SDL_CFLAGS" 76 CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" 77 LIBS="$LIBS $SDL_LIBS" 78 dnl 79 dnl Now check if the installed SDL is sufficiently new. (Also sanity 80 dnl checks the results of sdl2-config to some extent 81 dnl 82 rm -f conf.sdltest 83 AC_TRY_RUN([ 84 #include <stdio.h> 85 #include <stdlib.h> 86 #include <string.h> 87 #include "SDL.h" 88 89 char* 90 my_strdup (char *str) 91 { 92 char *new_str; 93 94 if (str) 95 { 96 new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char)); 97 strcpy (new_str, str); 98 } 99 else 100 new_str = NULL; 101 102 return new_str; 103 } 104 105 int main (int argc, char *argv[]) 106 { 107 int major, minor, micro; 108 char *tmp_version; 109 110 /* This hangs on some systems (?) 111 system ("touch conf.sdltest"); 112 */ 113 { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); } 114 115 /* HP/UX 9 (%@#!) writes to sscanf strings */ 116 tmp_version = my_strdup("$min_sdl_version"); 117 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { 118 printf("%s, bad version string\n", "$min_sdl_version"); 119 exit(1); 120 } 121 122 if (($sdl_major_version > major) || 123 (($sdl_major_version == major) && ($sdl_minor_version > minor)) || 124 (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro))) 125 { 126 return 0; 127 } 128 else 129 { 130 printf("\n*** 'sdl2-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version); 131 printf("*** of SDL required is %d.%d.%d. If sdl2-config is correct, then it is\n", major, minor, micro); 132 printf("*** best to upgrade to the required version.\n"); 133 printf("*** If sdl2-config was wrong, set the environment variable SDL_CONFIG\n"); 134 printf("*** to point to the correct copy of sdl2-config, and remove the file\n"); 135 printf("*** config.cache before re-running configure\n"); 136 return 1; 137 } 138 } 139 140 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 141 CFLAGS="$ac_save_CFLAGS" 142 CXXFLAGS="$ac_save_CXXFLAGS" 143 LIBS="$ac_save_LIBS" 144 fi 145 fi 146 if test "x$no_sdl" = x ; then 147 AC_MSG_RESULT(yes) 148 else 149 AC_MSG_RESULT(no) 150 fi 151 fi 152 if test "x$no_sdl" = x ; then 153 ifelse([$2], , :, [$2]) 154 else 155 if test "$SDL_CONFIG" = "no" ; then 156 echo "*** The sdl2-config script installed by SDL could not be found" 157 echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in" 158 echo "*** your path, or set the SDL_CONFIG environment variable to the" 159 echo "*** full path to sdl2-config." 160 else 161 if test -f conf.sdltest ; then 162 : 163 else 164 echo "*** Could not run SDL test program, checking why..." 165 CFLAGS="$CFLAGS $SDL_CFLAGS" 166 CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" 167 LIBS="$LIBS $SDL_LIBS" 168 AC_TRY_LINK([ 169 #include <stdio.h> 170 #include "SDL.h" 171 172 int main(int argc, char *argv[]) 173 { return 0; } 174 #undef main 175 #define main K_and_R_C_main 176 ], [ return 0; ], 177 [ echo "*** The test program compiled, but did not run. This usually means" 178 echo "*** that the run-time linker is not finding SDL or finding the wrong" 179 echo "*** version of SDL. If it is not finding SDL, you'll need to set your" 180 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" 181 echo "*** to the installed location Also, make sure you have run ldconfig if that" 182 echo "*** is required on your system" 183 echo "***" 184 echo "*** If you have an old version installed, it is best to remove it, although" 185 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], 186 [ echo "*** The test program failed to compile or link. See the file config.log for the" 187 echo "*** exact error that occured. This usually means SDL was incorrectly installed" 188 echo "*** or that you have moved SDL since it was installed. In the latter case, you" 189 echo "*** may want to edit the sdl2-config script: $SDL_CONFIG" ]) 190 CFLAGS="$ac_save_CFLAGS" 191 CXXFLAGS="$ac_save_CXXFLAGS" 192 LIBS="$ac_save_LIBS" 193 fi 194 fi 195 SDL_CFLAGS="" 196 SDL_LIBS="" 197 ifelse([$3], , :, [$3]) 198 fi 199 AC_SUBST(SDL_CFLAGS) 200 AC_SUBST(SDL_LIBS) 201 rm -f conf.sdltest 202 ]) 203 # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 204 # serial 1 (pkg-config-0.24) 205 # 206 # Copyright 2004 Scott James Remnant <scott (a] netsplit.com>. 207 # 208 # This program is free software; you can redistribute it and/or modify 209 # it under the terms of the GNU General Public License as published by 210 # the Free Software Foundation; either version 2 of the License, or 211 # (at your option) any later version. 212 # 213 # This program is distributed in the hope that it will be useful, but 214 # WITHOUT ANY WARRANTY; without even the implied warranty of 215 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 216 # General Public License for more details. 217 # 218 # You should have received a copy of the GNU General Public License 219 # along with this program; if not, write to the Free Software 220 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 221 # 222 # As a special exception to the GNU General Public License, if you 223 # distribute this file as part of a program that contains a 224 # configuration script generated by Autoconf, you may include it under 225 # the same distribution terms that you use for the rest of that program. 226 227 # PKG_PROG_PKG_CONFIG([MIN-VERSION]) 228 # ---------------------------------- 229 AC_DEFUN([PKG_PROG_PKG_CONFIG], 230 [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 231 m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) 232 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 233 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 234 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 235 236 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 237 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 238 fi 239 if test -n "$PKG_CONFIG"; then 240 _pkg_min_version=m4_default([$1], [0.9.0]) 241 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) 242 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then 243 AC_MSG_RESULT([yes]) 244 else 245 AC_MSG_RESULT([no]) 246 PKG_CONFIG="" 247 fi 248 fi[]dnl 249 ])# PKG_PROG_PKG_CONFIG 250 251 # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 252 # 253 # Check to see whether a particular set of modules exists. Similar 254 # to PKG_CHECK_MODULES(), but does not set variables or print errors. 255 # 256 # Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 257 # only at the first occurence in configure.ac, so if the first place 258 # it's called might be skipped (such as if it is within an "if", you 259 # have to call PKG_CHECK_EXISTS manually 260 # -------------------------------------------------------------- 261 AC_DEFUN([PKG_CHECK_EXISTS], 262 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 263 if test -n "$PKG_CONFIG" && \ 264 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 265 m4_default([$2], [:]) 266 m4_ifvaln([$3], [else 267 $3])dnl 268 fi]) 269 270 # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 271 # --------------------------------------------- 272 m4_define([_PKG_CONFIG], 273 [if test -n "$$1"; then 274 pkg_cv_[]$1="$$1" 275 elif test -n "$PKG_CONFIG"; then 276 PKG_CHECK_EXISTS([$3], 277 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], 278 [pkg_failed=yes]) 279 else 280 pkg_failed=untried 281 fi[]dnl 282 ])# _PKG_CONFIG 283 284 # _PKG_SHORT_ERRORS_SUPPORTED 285 # ----------------------------- 286 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 287 [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 288 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 289 _pkg_short_errors_supported=yes 290 else 291 _pkg_short_errors_supported=no 292 fi[]dnl 293 ])# _PKG_SHORT_ERRORS_SUPPORTED 294 295 296 # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 297 # [ACTION-IF-NOT-FOUND]) 298 # 299 # 300 # Note that if there is a possibility the first call to 301 # PKG_CHECK_MODULES might not happen, you should be sure to include an 302 # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 303 # 304 # 305 # -------------------------------------------------------------- 306 AC_DEFUN([PKG_CHECK_MODULES], 307 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 308 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 309 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 310 311 pkg_failed=no 312 AC_MSG_CHECKING([for $1]) 313 314 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 315 _PKG_CONFIG([$1][_LIBS], [libs], [$2]) 316 317 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 318 and $1[]_LIBS to avoid the need to call pkg-config. 319 See the pkg-config man page for more details.]) 320 321 if test $pkg_failed = yes; then 322 AC_MSG_RESULT([no]) 323 _PKG_SHORT_ERRORS_SUPPORTED 324 if test $_pkg_short_errors_supported = yes; then 325 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1` 326 else 327 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1` 328 fi 329 # Put the nasty error message in config.log where it belongs 330 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD 331 332 m4_default([$4], [AC_MSG_ERROR( 333 [Package requirements ($2) were not met: 334 335 $$1_PKG_ERRORS 336 337 Consider adjusting the PKG_CONFIG_PATH environment variable if you 338 installed software in a non-standard prefix. 339 340 _PKG_TEXT])dnl 341 ]) 342 elif test $pkg_failed = untried; then 343 AC_MSG_RESULT([no]) 344 m4_default([$4], [AC_MSG_FAILURE( 345 [The pkg-config script could not be found or is too old. Make sure it 346 is in your PATH or set the PKG_CONFIG environment variable to the full 347 path to pkg-config. 348 349 _PKG_TEXT 350 351 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])dnl 352 ]) 353 else 354 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 355 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 356 AC_MSG_RESULT([yes]) 357 $3 358 fi[]dnl 359 ])# PKG_CHECK_MODULES 360
