diff options
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 0000000..767d71a --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,198 @@ +# Configure paths for SVGAlib +# Created by Pierre Sarrazin <http://sarrazip.com/> +# Tiny changes by Julian Albo. +# This file is in the public domain. +# Created from sdl.m4. + +# This test must be executed in C mode (AC_LANG_C), not C++ mode. + +# Defines SVGALIB_CFLAGS and SVGALIB_LIBS and submits them to AC_SUBST() + +dnl AM_PATH_SVGALIB([MINIMUM-VERSION [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]]]) +dnl Test for SVGAlib, and define SVGALIB_CFLAGS and SVGALIB_LIBS +dnl +AC_DEFUN(AM_PATH_SVGALIB, +[ + AC_ARG_WITH(svgalib-prefix, + AC_HELP_STRING([--with-svgalib-prefix=PFX], + [Prefix where SVGAlib is installed [[/usr]]] ), + svgalib_prefix="$withval", + svgalib_prefix="/usr" + ) + AC_MSG_RESULT([using $svgalib_prefix as SVGAlib prefix]) + AC_ARG_ENABLE(svgalibtest, + AC_HELP_STRING([--disable-svgalibtest], + [Do not try to compile and run a test program] ), + , + enable_svgalibtest=yes + ) + +dnl Changed this check. +dnl AC_REQUIRE([AC_CANONICAL_TARGET]) + AC_REQUIRE([AC_CANONICAL_HOST]) + min_svgalib_version=ifelse([$1], ,1.4.0, $1) + AC_MSG_CHECKING([for SVGAlib - version >= $min_svgalib_version]) + no_svgalib="" + + + if test "$svgalib_prefix" = /usr; then + # Avoid the switch -I/usr/include - it might break gcc 3.x + SVGALIB_CFLAGS= + else + SVGALIB_CFLAGS="-I$svgalib_prefix/include" + fi + + SVGALIB_LIBS="-L$svgalib_prefix/lib -lvgagl -lvga" + + # Get the version number, which appears to be in the lib*.so.* filename: + # + if test -f $svgalib_prefix/lib/libvga.so.*.*.*; then + + _f=`echo $svgalib_prefix/lib/libvga.so.*.*.* | \ + sed 's/^.*\.so\.//'` + svgalib_major_version=`echo $_f | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` + svgalib_minor_version=`echo $_f | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` + svgalib_micro_version=`echo $_f | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` + + unset _f + + else + AC_MSG_ERROR([could not find $svgalib_prefix/lib/libvga.so.*.*.*]) + fi + + if test "_$enable_svgalibtest" = "_yes" ; then + ac_save_CFLAGS="$CFLAGS" + ac_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $SVGALIB_CFLAGS" + LIBS="$LIBS $SVGALIB_LIBS" +dnl +dnl Check if the installed SVGAlib is sufficiently new. +dnl + rm -f conf.svgalibtest + AC_TRY_RUN([ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "vga.h" + +char* +my_strdup (char *str) +{ + char *new_str; + + if (str) + { + new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char)); + strcpy (new_str, str); + } + else + new_str = NULL; + + return new_str; +} + +int main (int argc, char *argv[]) +{ + int major, minor, micro; + char *tmp_version; + + /* This hangs on some systems (?) + system ("touch conf.svgalibtest"); + */ + { FILE *fp = fopen("conf.svgalibtest", "a"); if ( fp ) fclose(fp); } + + /* HP/UX 9 (%@#!) writes to sscanf strings */ + tmp_version = my_strdup("$min_svgalib_version"); + if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { + printf("%s, bad version string\n", "$min_svgalib_version"); + exit(1); + } + + if (($svgalib_major_version > major) || + (($svgalib_major_version == major) && ($svgalib_minor_version > minor)) || + (($svgalib_major_version == major) && ($svgalib_minor_version == minor) && ($svgalib_micro_version >= micro))) + { + return 0; + } + else + { + printf("\n*** Installed SVGAlib version is %d.%d.%d, but the minimum version\n", $svgalib_major_version, $svgalib_minor_version, $svgalib_micro_version); + printf("*** of SVGAlib required is %d.%d.%d.\n", major, minor, micro); + printf("*** It is best to upgrade to the required version.\n"); + printf("*** The web site is http://www.svgalib.org/\n"); + printf("*** See also --with-svgalib-prefix\n"); + return 1; + } +} + +], + , + no_svgalib=yes, + [echo $ac_n "cross compiling; assumed OK... $ac_c"] + ) + + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + fi + + + if test "_$no_svgalib" = _ ; then + AC_MSG_RESULT([found $svgalib_major_version.$svgalib_minor_version.$svgalib_micro_version]) + ifelse([$2], , :, [$2]) + else + AC_MSG_ERROR([SVGAlib >= min_svgalib_version not found]) + + if test -f conf.svgalibtest ; then + : + else + echo "*** Could not run SVGAlib test program, checking why..." + + CFLAGS="$CFLAGS $SVGALIB_CFLAGS" + LIBS="$LIBS $SVGALIB_LIBS" + + AC_TRY_LINK([ +#include <stdio.h> +#include "vga.h" + +int main(int argc, char *argv[]) +{ return 0; } +#undef main +#define main K_and_R_C_main +], [ return 0; ], + [ echo "*** The test program compiled, but did not run. This usually means" + echo "*** that the run-time linker is not finding SVGAlib or finding the wrong" + echo "*** version of SVGAlib. If it is not finding SVGAlib, you'll need to set your" + echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" + echo "*** to the installed location Also, make sure you have run ldconfig if that" + echo "*** is required on your system" + echo "***" + echo "*** If you have an old version installed, it is best to remove it, although" + echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" + ], + [ echo "*** The test program failed to compile or link. See the file config.log for the" + echo "*** exact error that occured. This usually means SVGAlib was incorrectly installed" + echo "*** or that you have moved SVGAlib since it was installed." + echo "***" + echo "*** SVGAlib web site: http://www.svgalib.org/" + ] + ) + + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + + AC_MSG_ERROR([SVGAlib >= min_svgalib_version not found]) + + fi + + SVGALIB_CFLAGS="" + SVGALIB_LIBS="" + ifelse([$3], , :, [$3]) + fi + + AC_SUBST(SVGALIB_CFLAGS) + AC_SUBST(SVGALIB_LIBS) + rm -f conf.svgalibtest +]) |