1# generated automatically by aclocal 1.16.1 -*- Autoconf -*- 2 3# Copyright (C) 1996-2018 Free Software Foundation, Inc. 4 5# This file is free software; the Free Software Foundation 6# gives unlimited permission to copy and/or distribute it, 7# with or without modifications, as long as this notice is preserved. 8 9# This program is distributed in the hope that it will be useful, 10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without 11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A 12# PARTICULAR PURPOSE. 13 14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) 15m4_ifndef([AC_AUTOCONF_VERSION], 16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl 17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, 18[m4_warning([this file was generated for autoconf 2.69. 19You have another version of autoconf. It may work, but is not guaranteed to. 20If you have problems, you may need to regenerate the build system entirely. 21To do so, use the procedure documented by the package, typically 'autoreconf'.])]) 22 23# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 24# serial 11 (pkg-config-0.29.1) 25 26dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>. 27dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com> 28dnl 29dnl This program is free software; you can redistribute it and/or modify 30dnl it under the terms of the GNU General Public License as published by 31dnl the Free Software Foundation; either version 2 of the License, or 32dnl (at your option) any later version. 33dnl 34dnl This program is distributed in the hope that it will be useful, but 35dnl WITHOUT ANY WARRANTY; without even the implied warranty of 36dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 37dnl General Public License for more details. 38dnl 39dnl You should have received a copy of the GNU General Public License 40dnl along with this program; if not, write to the Free Software 41dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 42dnl 02111-1307, USA. 43dnl 44dnl As a special exception to the GNU General Public License, if you 45dnl distribute this file as part of a program that contains a 46dnl configuration script generated by Autoconf, you may include it under 47dnl the same distribution terms that you use for the rest of that 48dnl program. 49 50dnl PKG_PREREQ(MIN-VERSION) 51dnl ----------------------- 52dnl Since: 0.29 53dnl 54dnl Verify that the version of the pkg-config macros are at least 55dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's 56dnl installed version of pkg-config, this checks the developer's version 57dnl of pkg.m4 when generating configure. 58dnl 59dnl To ensure that this macro is defined, also add: 60dnl m4_ifndef([PKG_PREREQ], 61dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) 62dnl 63dnl See the "Since" comment for each macro you use to see what version 64dnl of the macros you require. 65m4_defun([PKG_PREREQ], 66[m4_define([PKG_MACROS_VERSION], [0.29.1]) 67m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, 68 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) 69])dnl PKG_PREREQ 70 71dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) 72dnl ---------------------------------- 73dnl Since: 0.16 74dnl 75dnl Search for the pkg-config tool and set the PKG_CONFIG variable to 76dnl first found in the path. Checks that the version of pkg-config found 77dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is 78dnl used since that's the first version where most current features of 79dnl pkg-config existed. 80AC_DEFUN([PKG_PROG_PKG_CONFIG], 81[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 82m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) 83m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) 84AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 85AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 86AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 87 88if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 89 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 90fi 91if test -n "$PKG_CONFIG"; then 92 _pkg_min_version=m4_default([$1], [0.9.0]) 93 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) 94 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then 95 AC_MSG_RESULT([yes]) 96 else 97 AC_MSG_RESULT([no]) 98 PKG_CONFIG="" 99 fi 100fi[]dnl 101])dnl PKG_PROG_PKG_CONFIG 102 103dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 104dnl ------------------------------------------------------------------- 105dnl Since: 0.18 106dnl 107dnl Check to see whether a particular set of modules exists. Similar to 108dnl PKG_CHECK_MODULES(), but does not set variables or print errors. 109dnl 110dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 111dnl only at the first occurence in configure.ac, so if the first place 112dnl it's called might be skipped (such as if it is within an "if", you 113dnl have to call PKG_CHECK_EXISTS manually 114AC_DEFUN([PKG_CHECK_EXISTS], 115[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 116if test -n "$PKG_CONFIG" && \ 117 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 118 m4_default([$2], [:]) 119m4_ifvaln([$3], [else 120 $3])dnl 121fi]) 122 123dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 124dnl --------------------------------------------- 125dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting 126dnl pkg_failed based on the result. 127m4_define([_PKG_CONFIG], 128[if test -n "$$1"; then 129 pkg_cv_[]$1="$$1" 130 elif test -n "$PKG_CONFIG"; then 131 PKG_CHECK_EXISTS([$3], 132 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` 133 test "x$?" != "x0" && pkg_failed=yes ], 134 [pkg_failed=yes]) 135 else 136 pkg_failed=untried 137fi[]dnl 138])dnl _PKG_CONFIG 139 140dnl _PKG_SHORT_ERRORS_SUPPORTED 141dnl --------------------------- 142dnl Internal check to see if pkg-config supports short errors. 143AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 144[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 145if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 146 _pkg_short_errors_supported=yes 147else 148 _pkg_short_errors_supported=no 149fi[]dnl 150])dnl _PKG_SHORT_ERRORS_SUPPORTED 151 152 153dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 154dnl [ACTION-IF-NOT-FOUND]) 155dnl -------------------------------------------------------------- 156dnl Since: 0.4.0 157dnl 158dnl Note that if there is a possibility the first call to 159dnl PKG_CHECK_MODULES might not happen, you should be sure to include an 160dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 161AC_DEFUN([PKG_CHECK_MODULES], 162[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 163AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 164AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 165 166pkg_failed=no 167AC_MSG_CHECKING([for $1]) 168 169_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 170_PKG_CONFIG([$1][_LIBS], [libs], [$2]) 171 172m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 173and $1[]_LIBS to avoid the need to call pkg-config. 174See the pkg-config man page for more details.]) 175 176if test $pkg_failed = yes; then 177 AC_MSG_RESULT([no]) 178 _PKG_SHORT_ERRORS_SUPPORTED 179 if test $_pkg_short_errors_supported = yes; then 180 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` 181 else 182 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` 183 fi 184 # Put the nasty error message in config.log where it belongs 185 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD 186 187 m4_default([$4], [AC_MSG_ERROR( 188[Package requirements ($2) were not met: 189 190$$1_PKG_ERRORS 191 192Consider adjusting the PKG_CONFIG_PATH environment variable if you 193installed software in a non-standard prefix. 194 195_PKG_TEXT])[]dnl 196 ]) 197elif test $pkg_failed = untried; then 198 AC_MSG_RESULT([no]) 199 m4_default([$4], [AC_MSG_FAILURE( 200[The pkg-config script could not be found or is too old. Make sure it 201is in your PATH or set the PKG_CONFIG environment variable to the full 202path to pkg-config. 203 204_PKG_TEXT 205 206To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl 207 ]) 208else 209 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 210 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 211 AC_MSG_RESULT([yes]) 212 $3 213fi[]dnl 214])dnl PKG_CHECK_MODULES 215 216 217dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 218dnl [ACTION-IF-NOT-FOUND]) 219dnl --------------------------------------------------------------------- 220dnl Since: 0.29 221dnl 222dnl Checks for existence of MODULES and gathers its build flags with 223dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags 224dnl and VARIABLE-PREFIX_LIBS from --libs. 225dnl 226dnl Note that if there is a possibility the first call to 227dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to 228dnl include an explicit call to PKG_PROG_PKG_CONFIG in your 229dnl configure.ac. 230AC_DEFUN([PKG_CHECK_MODULES_STATIC], 231[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 232_save_PKG_CONFIG=$PKG_CONFIG 233PKG_CONFIG="$PKG_CONFIG --static" 234PKG_CHECK_MODULES($@) 235PKG_CONFIG=$_save_PKG_CONFIG[]dnl 236])dnl PKG_CHECK_MODULES_STATIC 237 238 239dnl PKG_INSTALLDIR([DIRECTORY]) 240dnl ------------------------- 241dnl Since: 0.27 242dnl 243dnl Substitutes the variable pkgconfigdir as the location where a module 244dnl should install pkg-config .pc files. By default the directory is 245dnl $libdir/pkgconfig, but the default can be changed by passing 246dnl DIRECTORY. The user can override through the --with-pkgconfigdir 247dnl parameter. 248AC_DEFUN([PKG_INSTALLDIR], 249[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) 250m4_pushdef([pkg_description], 251 [pkg-config installation directory @<:@]pkg_default[@:>@]) 252AC_ARG_WITH([pkgconfigdir], 253 [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, 254 [with_pkgconfigdir=]pkg_default) 255AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) 256m4_popdef([pkg_default]) 257m4_popdef([pkg_description]) 258])dnl PKG_INSTALLDIR 259 260 261dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) 262dnl -------------------------------- 263dnl Since: 0.27 264dnl 265dnl Substitutes the variable noarch_pkgconfigdir as the location where a 266dnl module should install arch-independent pkg-config .pc files. By 267dnl default the directory is $datadir/pkgconfig, but the default can be 268dnl changed by passing DIRECTORY. The user can override through the 269dnl --with-noarch-pkgconfigdir parameter. 270AC_DEFUN([PKG_NOARCH_INSTALLDIR], 271[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) 272m4_pushdef([pkg_description], 273 [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) 274AC_ARG_WITH([noarch-pkgconfigdir], 275 [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, 276 [with_noarch_pkgconfigdir=]pkg_default) 277AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) 278m4_popdef([pkg_default]) 279m4_popdef([pkg_description]) 280])dnl PKG_NOARCH_INSTALLDIR 281 282 283dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, 284dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 285dnl ------------------------------------------- 286dnl Since: 0.28 287dnl 288dnl Retrieves the value of the pkg-config variable for the given module. 289AC_DEFUN([PKG_CHECK_VAR], 290[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 291AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl 292 293_PKG_CONFIG([$1], [variable="][$3]["], [$2]) 294AS_VAR_COPY([$1], [pkg_cv_][$1]) 295 296AS_VAR_IF([$1], [""], [$5], [$4])dnl 297])dnl PKG_CHECK_VAR 298 299dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES, 300dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND], 301dnl [DESCRIPTION], [DEFAULT]) 302dnl ------------------------------------------ 303dnl 304dnl Prepare a "--with-" configure option using the lowercase 305dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and 306dnl PKG_CHECK_MODULES in a single macro. 307AC_DEFUN([PKG_WITH_MODULES], 308[ 309m4_pushdef([with_arg], m4_tolower([$1])) 310 311m4_pushdef([description], 312 [m4_default([$5], [build with ]with_arg[ support])]) 313 314m4_pushdef([def_arg], [m4_default([$6], [auto])]) 315m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes]) 316m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no]) 317 318m4_case(def_arg, 319 [yes],[m4_pushdef([with_without], [--without-]with_arg)], 320 [m4_pushdef([with_without],[--with-]with_arg)]) 321 322AC_ARG_WITH(with_arg, 323 AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),, 324 [AS_TR_SH([with_]with_arg)=def_arg]) 325 326AS_CASE([$AS_TR_SH([with_]with_arg)], 327 [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)], 328 [auto],[PKG_CHECK_MODULES([$1],[$2], 329 [m4_n([def_action_if_found]) $3], 330 [m4_n([def_action_if_not_found]) $4])]) 331 332m4_popdef([with_arg]) 333m4_popdef([description]) 334m4_popdef([def_arg]) 335 336])dnl PKG_WITH_MODULES 337 338dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES, 339dnl [DESCRIPTION], [DEFAULT]) 340dnl ----------------------------------------------- 341dnl 342dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES 343dnl check._[VARIABLE-PREFIX] is exported as make variable. 344AC_DEFUN([PKG_HAVE_WITH_MODULES], 345[ 346PKG_WITH_MODULES([$1],[$2],,,[$3],[$4]) 347 348AM_CONDITIONAL([HAVE_][$1], 349 [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"]) 350])dnl PKG_HAVE_WITH_MODULES 351 352dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES, 353dnl [DESCRIPTION], [DEFAULT]) 354dnl ------------------------------------------------------ 355dnl 356dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after 357dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make 358dnl and preprocessor variable. 359AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES], 360[ 361PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4]) 362 363AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"], 364 [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])]) 365])dnl PKG_HAVE_DEFINE_WITH_MODULES 366 367# Configure paths for SDL 368# Sam Lantinga 9/21/99 369# stolen from Manish Singh 370# stolen back from Frank Belew 371# stolen from Manish Singh 372# Shamelessly stolen from Owen Taylor 373# 374# Changelog: 375# * also look for SDL2.framework under Mac OS X 376 377# serial 1 378 379dnl AM_PATH_SDL2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) 380dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS 381dnl 382AC_DEFUN([AM_PATH_SDL2], 383[dnl 384dnl Get the cflags and libraries from the sdl2-config script 385dnl 386AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)], 387 sdl_prefix="$withval", sdl_prefix="") 388AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)], 389 sdl_exec_prefix="$withval", sdl_exec_prefix="") 390AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program], 391 , enable_sdltest=yes) 392AC_ARG_ENABLE(sdlframework, [ --disable-sdlframework Do not search for SDL2.framework], 393 , search_sdl_framework=yes) 394 395AC_ARG_VAR(SDL2_FRAMEWORK, [Path to SDL2.framework]) 396 397 min_sdl_version=ifelse([$1], ,2.0.0,$1) 398 399 if test "x$sdl_prefix$sdl_exec_prefix" = x ; then 400 PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version], 401 [sdl_pc=yes], 402 [sdl_pc=no]) 403 else 404 sdl_pc=no 405 if test x$sdl_exec_prefix != x ; then 406 sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix" 407 if test x${SDL2_CONFIG+set} != xset ; then 408 SDL2_CONFIG=$sdl_exec_prefix/bin/sdl2-config 409 fi 410 fi 411 if test x$sdl_prefix != x ; then 412 sdl_config_args="$sdl_config_args --prefix=$sdl_prefix" 413 if test x${SDL2_CONFIG+set} != xset ; then 414 SDL2_CONFIG=$sdl_prefix/bin/sdl2-config 415 fi 416 fi 417 fi 418 419 if test "x$sdl_pc" = xyes ; then 420 no_sdl="" 421 SDL2_CONFIG="pkg-config sdl2" 422 else 423 as_save_PATH="$PATH" 424 if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then 425 PATH="$prefix/bin:$prefix/usr/bin:$PATH" 426 fi 427 AC_PATH_PROG(SDL2_CONFIG, sdl2-config, no, [$PATH]) 428 PATH="$as_save_PATH" 429 no_sdl="" 430 431 if test "$SDL2_CONFIG" = "no" -a "x$search_sdl_framework" = "xyes"; then 432 AC_MSG_CHECKING(for SDL2.framework) 433 if test "x$SDL2_FRAMEWORK" != x; then 434 sdl_framework=$SDL2_FRAMEWORK 435 else 436 for d in / ~/ /System/; do 437 if test -d "$dLibrary/Frameworks/SDL2.framework"; then 438 sdl_framework="$dLibrary/Frameworks/SDL2.framework" 439 fi 440 done 441 fi 442 443 if test x"$sdl_framework" != x && test -d "$sdl_framework"; then 444 AC_MSG_RESULT($sdl_framework) 445 sdl_framework_dir=`dirname $sdl_framework` 446 SDL_CFLAGS="-F$sdl_framework_dir -Wl,-framework,SDL2 -I$sdl_framework/include" 447 SDL_LIBS="-F$sdl_framework_dir -Wl,-framework,SDL2" 448 else 449 no_sdl=yes 450 fi 451 fi 452 453 if test "$SDL2_CONFIG" != "no"; then 454 if test "x$sdl_pc" = "xno"; then 455 AC_MSG_CHECKING(for SDL - version >= $min_sdl_version) 456 SDL_CFLAGS=`$SDL2_CONFIG $sdl_config_args --cflags` 457 SDL_LIBS=`$SDL2_CONFIG $sdl_config_args --libs` 458 fi 459 460 sdl_major_version=`$SDL2_CONFIG $sdl_config_args --version | \ 461 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` 462 sdl_minor_version=`$SDL2_CONFIG $sdl_config_args --version | \ 463 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` 464 sdl_micro_version=`$SDL2_CONFIG $sdl_config_args --version | \ 465 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` 466 if test "x$enable_sdltest" = "xyes" ; then 467 ac_save_CFLAGS="$CFLAGS" 468 ac_save_CXXFLAGS="$CXXFLAGS" 469 ac_save_LIBS="$LIBS" 470 CFLAGS="$CFLAGS $SDL_CFLAGS" 471 CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" 472 LIBS="$LIBS $SDL_LIBS" 473dnl 474dnl Now check if the installed SDL is sufficiently new. (Also sanity 475dnl checks the results of sdl2-config to some extent 476dnl 477 rm -f conf.sdltest 478 AC_TRY_RUN([ 479#include <stdio.h> 480#include <stdlib.h> 481#include <string.h> 482#include "SDL.h" 483 484char* 485my_strdup (char *str) 486{ 487 char *new_str; 488 489 if (str) 490 { 491 new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char)); 492 strcpy (new_str, str); 493 } 494 else 495 new_str = NULL; 496 497 return new_str; 498} 499 500int main (int argc, char *argv[]) 501{ 502 int major, minor, micro; 503 char *tmp_version; 504 505 /* This hangs on some systems (?) 506 system ("touch conf.sdltest"); 507 */ 508 { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); } 509 510 /* HP/UX 9 (%@#!) writes to sscanf strings */ 511 tmp_version = my_strdup("$min_sdl_version"); 512 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { 513 printf("%s, bad version string\n", "$min_sdl_version"); 514 exit(1); 515 } 516 517 if (($sdl_major_version > major) || 518 (($sdl_major_version == major) && ($sdl_minor_version > minor)) || 519 (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro))) 520 { 521 return 0; 522 } 523 else 524 { 525 printf("\n*** 'sdl2-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version); 526 printf("*** of SDL required is %d.%d.%d. If sdl2-config is correct, then it is\n", major, minor, micro); 527 printf("*** best to upgrade to the required version.\n"); 528 printf("*** If sdl2-config was wrong, set the environment variable SDL2_CONFIG\n"); 529 printf("*** to point to the correct copy of sdl2-config, and remove the file\n"); 530 printf("*** config.cache before re-running configure\n"); 531 return 1; 532 } 533} 534 535],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 536 CFLAGS="$ac_save_CFLAGS" 537 CXXFLAGS="$ac_save_CXXFLAGS" 538 LIBS="$ac_save_LIBS" 539 540 fi 541 if test "x$sdl_pc" = "xno"; then 542 if test "x$no_sdl" = "xyes"; then 543 AC_MSG_RESULT(no) 544 else 545 AC_MSG_RESULT(yes) 546 fi 547 fi 548 fi 549 fi 550 if test "x$no_sdl" = x ; then 551 ifelse([$2], , :, [$2]) 552 else 553 if test "$SDL2_CONFIG" = "no" ; then 554 echo "*** The sdl2-config script installed by SDL could not be found" 555 echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in" 556 echo "*** your path, or set the SDL2_CONFIG environment variable to the" 557 echo "*** full path to sdl2-config." 558 else 559 if test -f conf.sdltest ; then 560 : 561 else 562 echo "*** Could not run SDL test program, checking why..." 563 CFLAGS="$CFLAGS $SDL_CFLAGS" 564 CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" 565 LIBS="$LIBS $SDL_LIBS" 566 AC_TRY_LINK([ 567#include <stdio.h> 568#include "SDL.h" 569 570int main(int argc, char *argv[]) 571{ return 0; } 572#undef main 573#define main K_and_R_C_main 574], [ return 0; ], 575 [ echo "*** The test program compiled, but did not run. This usually means" 576 echo "*** that the run-time linker is not finding SDL or finding the wrong" 577 echo "*** version of SDL. If it is not finding SDL, you'll need to set your" 578 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" 579 echo "*** to the installed location Also, make sure you have run ldconfig if that" 580 echo "*** is required on your system" 581 echo "***" 582 echo "*** If you have an old version installed, it is best to remove it, although" 583 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], 584 [ echo "*** The test program failed to compile or link. See the file config.log for the" 585 echo "*** exact error that occured. This usually means SDL was incorrectly installed" 586 echo "*** or that you have moved SDL since it was installed. In the latter case, you" 587 echo "*** may want to edit the sdl2-config script: $SDL2_CONFIG" ]) 588 CFLAGS="$ac_save_CFLAGS" 589 CXXFLAGS="$ac_save_CXXFLAGS" 590 LIBS="$ac_save_LIBS" 591 fi 592 fi 593 SDL_CFLAGS="" 594 SDL_LIBS="" 595 ifelse([$3], , :, [$3]) 596 fi 597 AC_SUBST(SDL_CFLAGS) 598 AC_SUBST(SDL_LIBS) 599 rm -f conf.sdltest 600]) 601 602# Copyright (C) 2002-2018 Free Software Foundation, Inc. 603# 604# This file is free software; the Free Software Foundation 605# gives unlimited permission to copy and/or distribute it, 606# with or without modifications, as long as this notice is preserved. 607 608# AM_AUTOMAKE_VERSION(VERSION) 609# ---------------------------- 610# Automake X.Y traces this macro to ensure aclocal.m4 has been 611# generated from the m4 files accompanying Automake X.Y. 612# (This private macro should not be called outside this file.) 613AC_DEFUN([AM_AUTOMAKE_VERSION], 614[am__api_version='1.16' 615dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to 616dnl require some minimum version. Point them to the right macro. 617m4_if([$1], [1.16.1], [], 618 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl 619]) 620 621# _AM_AUTOCONF_VERSION(VERSION) 622# ----------------------------- 623# aclocal traces this macro to find the Autoconf version. 624# This is a private macro too. Using m4_define simplifies 625# the logic in aclocal, which can simply ignore this definition. 626m4_define([_AM_AUTOCONF_VERSION], []) 627 628# AM_SET_CURRENT_AUTOMAKE_VERSION 629# ------------------------------- 630# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced. 631# This function is AC_REQUIREd by AM_INIT_AUTOMAKE. 632AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION], 633[AM_AUTOMAKE_VERSION([1.16.1])dnl 634m4_ifndef([AC_AUTOCONF_VERSION], 635 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl 636_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))]) 637 638# Copyright (C) 2011-2018 Free Software Foundation, Inc. 639# 640# This file is free software; the Free Software Foundation 641# gives unlimited permission to copy and/or distribute it, 642# with or without modifications, as long as this notice is preserved. 643 644# AM_PROG_AR([ACT-IF-FAIL]) 645# ------------------------- 646# Try to determine the archiver interface, and trigger the ar-lib wrapper 647# if it is needed. 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