diff options
Diffstat (limited to 'm4/sane.m4')
| -rw-r--r-- | m4/sane.m4 | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/m4/sane.m4 b/m4/sane.m4 new file mode 100644 index 0000000..d0dc89c --- /dev/null +++ b/m4/sane.m4 @@ -0,0 +1,149 @@ +# ******************************************************************** +# Configure paths for SANE +# Oliver Rauch 2000-10-30 + +dnl AM_PATH_SANE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) +dnl Test for SANE, and define SANE_CFLAGS and SANE_LIBS +dnl +AC_DEFUN(AM_PATH_SANE, +[dnl +dnl Get the cflags and libraries from the sane-config script +dnl + AC_ARG_ENABLE(sanetest, [ --disable-sanetest Do not try to compile and run a test SANE program], , enable_sanetest=yes) + + AC_PATH_PROG(SANE_CONFIG, sane-config, no) + min_sane_version=ifelse([$1], ,1.0.0,$1) + AC_MSG_CHECKING(for SANE - version >= $min_sane_version) + no_sane="" + if test "$SANE_CONFIG" = "no" ; then + no_sane=yes + else + SANE_CFLAGS=`$SANE_CONFIG $sane_config_args --cflags` + SANE_LDFLAGS=`$SANE_CONFIG $sane_config_args --ldflags` +# SANE_LIBS=`$SANE_CONFIG $sane_config_args --libs` + SANE_LIBS=`$SANE_CONFIG $sane_config_args --libs | sed -e 's/-lintl//g'` + SANE_PREFIX=`$SANE_CONFIG $sane_config_args --prefix` + sane_config_major_version=`$SANE_CONFIG $sane_config_args --version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` + sane_config_minor_version=`$SANE_CONFIG $sane_config_args --version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` + sane_config_micro_version=`$SANE_CONFIG $sane_config_args --version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` + if test "x$enable_sanetest" = "xyes" ; then + ac_save_CFLAGS="$CFLAGS" + ac_save_LDFLAGS="$LDFLAGS" + ac_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $SANE_CFLAGS" + LDFLAGS="$LDFLAGS $SANE_LDFLAGS" + LIBS="$LIBS $SANE_LIBS" +dnl +dnl Now check if the installed SANE is sufficiently new. (Also sanity +dnl checks the results of sane-config to some extent +dnl + rm -f conf.sanetest + AC_TRY_RUN([ +#include <sane/sane.h> +#include <stdio.h> + +int +main () +{ + int major, minor, micro; + + system ("touch conf.sanetest"); + + if (sscanf("$min_sane_version", "%d.%d.%d", &major, &minor, µ) != 3) { + printf("%s, bad version string\n", "$min_sane_version"); + exit(1); + } + + if ( ($sane_config_major_version == major) && + ( ($sane_config_minor_version > minor) || + ( ($sane_config_minor_version == minor) && ($sane_config_micro_version >= micro)))) + { + return 0; + } + else if ($sane_config_major_version > major) + { + printf("\n*** A too new version of SANE (%d.%d.%d) was found.\n", + $sane_config_major_version, $sane_config_minor_version, $sane_config_micro_version); + printf("*** You need a version of SANE with the major version number %d.\n", major); + } + else + { + printf("\n*** An old version of SANE (%d.%d.%d) was found.\n", + $sane_config_major_version, $sane_config_minor_version, $sane_config_micro_version); + printf("*** You need a version of SANE newer than %d.%d.%d. The latest version of\n", + major, minor, micro); + } + + printf("*** SANE is always available from ftp://ftp.mostang.com\n"); + printf("***\n"); + printf("*** If you have already installed a sufficient version, this error\n"); + printf("*** probably means that the wrong copy of the sane-config shell script is\n"); + printf("*** being found. The easiest way to fix this is to remove the old version\n"); + printf("*** of SANE, but you can also set the SANE_CONFIG environment to point to the\n"); + printf("*** correct copy of sane-config. (In this case, you will have to\n"); + printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n"); + printf("*** so that the correct libraries are found at run-time))\n"); + + return 1; +} +],, no_sane=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) + CFLAGS="$ac_save_CFLAGS" + LDFLAGS="$ac_save_LDFLAGS" + LIBS="$ac_save_LIBS" + fi + fi + if test "x$no_sane" = x ; then + AC_MSG_RESULT(yes) + ifelse([$2], , :, [$2]) + else + AC_MSG_RESULT(no) + if test "$SANE_CONFIG" = "no" ; then + echo "*** The sane-config script installed by SANE could not be found" + echo "*** If SANE was installed in PREFIX, make sure PREFIX/bin is in" + echo "*** your path, or set the SANE_CONFIG environment variable to the" + echo "*** full path to sane-config." + else + if test -f conf.sanetest ; then + : + else + echo "*** Could not run SANE test program, checking why..." + CFLAGS="$CFLAGS $SANE_CFLAGS" + LIBS="$LIBS $SANE_LIBS" + LDFLAGS="$LDFLAGS $SANE_LDFLAGS" + AC_TRY_LINK([ +#include <sane/sane.h> +#include <stdio.h> +], [ return (SANE_CURRENT_MAJOR); ], + [ echo "*** The test program compiled, but did not run. This usually means" + echo "*** that the run-time linker is not finding SANE or finding the wrong" + echo "*** version of SANE. If it is not finding SANE, 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 "***" ] + [ echo "*** The test program failed to compile or link. See the file config.log for the" + echo "*** exact error that occured. This usually means SANE was incorrectly installed" + echo "*** or that you have moved SANE since it was installed. In the latter case, you" + echo "*** may want to edit the sane-config script: $SANE_CONFIG" ]) + CFLAGS="$ac_save_CFLAGS" + LDFLAGS="$ac_save_LDFLAGS" + LIBS="$ac_save_LIBS" + fi + fi + SANE_CFLAGS="" + SANE_LDFLAGS="" + SANE_LIBS="" + ifelse([$3], , :, [$3]) + fi + AC_SUBST(SANE_LDFLAGS) + AC_SUBST(SANE_CFLAGS) + AC_SUBST(SANE_LIBS) + AC_SUBST(SANE_PREFIX) + rm -f conf.sanetest +]) |