Imported Upstream version 0.97upstream/0.97

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, &micro) != 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
+])