# acinclude.m4 for sane-frontends
# AM_PATH_GTK
# AM_PATH_GIMP
# AM_PATH_SANE

######################################################################
# Configure paths for GTK+
# Owen Taylor     97-11-3

dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
dnl
AC_DEFUN(AM_PATH_GTK,
[dnl 
dnl Get the cflags and libraries from the gtk-config script
dnl
AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
            gtk_config_prefix="$withval", gtk_config_prefix="")
AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
            gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program], , enable_gtktest=yes)

  if test x$gtk_config_exec_prefix != x ; then
     gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
     if test x${GTK_CONFIG+set} != xset ; then
        GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
     fi
  fi
  if test x$gtk_config_prefix != x ; then
     gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
     if test x${GTK_CONFIG+set} != xset ; then
        GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
     fi
  fi

  AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
  min_gtk_version=ifelse([$1], ,0.99.7,$1)
  AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
  no_gtk=""
  if test "$GTK_CONFIG" = "no" ; then
    no_gtk=yes
  else
    GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
    GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
    gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
    gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
    gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
    if test "x$enable_gtktest" = "xyes" ; then
      ac_save_CFLAGS="$CFLAGS"
      ac_save_LIBS="$LIBS"
      CFLAGS="$CFLAGS $GTK_CFLAGS"
      LIBS="$LIBS $GTK_LIBS"
dnl
dnl Now check if the installed GTK is sufficiently new. (Also sanity
dnl checks the results of gtk-config to some extent
dnl
      rm -f conf.gtktest
      AC_TRY_RUN([
#include <gtk/gtk.h>
#include <stdio.h>

int 
main ()
{
  int major, minor, micro;

  system ("touch conf.gtktest");

  if (sscanf("$min_gtk_version", "%d.%d.%d", &major, &minor, &micro) != 3) {
     printf("%s, bad version string\n", "$min_gtk_version");
     exit(1);
   }

  if ((gtk_major_version != $gtk_config_major_version) ||
      (gtk_minor_version != $gtk_config_minor_version) ||
      (gtk_micro_version != $gtk_config_micro_version))
    {
      printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n", 
             $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
             gtk_major_version, gtk_minor_version, gtk_micro_version);
      printf ("*** was found! If gtk-config was correct, then it is best\n");
      printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
      printf("*** required on your system.\n");
      printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
      printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
      printf("*** before re-running configure\n");
    } 
  else
    {
      if ((gtk_major_version > major) ||
        ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
        ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
      {
        return 0;
       }
     else
      {
        printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
               gtk_major_version, gtk_minor_version, gtk_micro_version);
        printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
	       major, minor, micro);
        printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
        printf("***\n");
        printf("*** If you have already installed a sufficiently new version, this error\n");
        printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
        printf("*** being found. The easiest way to fix this is to remove the old version\n");
        printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
        printf("*** correct copy of gtk-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_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
       CFLAGS="$ac_save_CFLAGS"
       LIBS="$ac_save_LIBS"
     fi
  fi
  if test "x$no_gtk" = x ; then
     AC_MSG_RESULT(yes)
     ifelse([$2], , :, [$2])     
  else
     AC_MSG_RESULT(no)
     if test "$GTK_CONFIG" = "no" ; then
       echo "*** The gtk-config script installed by GTK could not be found"
       echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
       echo "*** your path, or set the GTK_CONFIG environment variable to the"
       echo "*** full path to gtk-config."
     else
       if test -f conf.gtktest ; then
        :
       else
          echo "*** Could not run GTK test program, checking why..."
          CFLAGS="$CFLAGS $GTK_CFLAGS"
          LIBS="$LIBS $GTK_LIBS"
          AC_TRY_LINK([
#include <gtk/gtk.h>
#include <stdio.h>
],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
        [ echo "*** The test program compiled, but did not run. This usually means"
          echo "*** that the run-time linker is not finding GTK or finding the wrong"
          echo "*** version of GTK. If it is not finding GTK, 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 "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
          echo "*** came with the system with the command"
          echo "***"
          echo "***    rpm --erase --nodeps gtk gtk-devel" ],
        [ echo "*** The test program failed to compile or link. See the file config.log for the"
          echo "*** exact error that occured. This usually means GTK was incorrectly installed"
          echo "*** or that you have moved GTK since it was installed. In the latter case, you"
          echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
          CFLAGS="$ac_save_CFLAGS"
          LIBS="$ac_save_LIBS"
       fi
     fi
     GTK_CFLAGS=""
     GTK_LIBS=""
     ifelse([$3], , :, [$3])
  fi
  AC_SUBST(GTK_CFLAGS)
  AC_SUBST(GTK_LIBS)
  rm -f conf.gtktest
])


######################################################################
# Configure paths for The GIMP 
# Oliver Rauch 2000-12-28

dnl AM_PATH_GIMP([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for GIMP, and define GIMP_CFLAGS and GIMP_LIBS
dnl
AC_DEFUN(AM_PATH_GIMP,
[dnl 
dnl Get the cflags and libraries from the gimp-config script
dnl
  AC_ARG_WITH(gimp-prefix,[  --with-gimp-prefix=PFX   Prefix where GIMP is installed (optional)],
              gimp_config_prefix="$withval", gimp_config_prefix="")
  AC_ARG_WITH(gimp-exec-prefix,[  --with-gimp-exec-prefix=PFX Exec prefix where GIMP is installed (optional)],
              gimp_config_exec_prefix="$withval", gimp_config_exec_prefix="")
  AC_ARG_ENABLE(gimptest, [  --disable-gimptest      Do not try to compile and run a test GIMP program], , enable_gimptest=yes)

  ac_save_CFLAGS="$CFLAGS"
  ac_save_LIBS="$LIBS"
  ac_save_GTK_CFLAGS="$GTK_CFLAGS"
  ac_save_GTK_LIBS="$GTK_LIBS"

  if test x$gimp_config_exec_prefix != x ; then
     gimp_config_args="$gimp_config_args --exec-prefix=$gimp_config_exec_prefix"
     if test x${GIMP_CONFIG+set} != xset ; then
        GIMP_CONFIG=$gimp_config_exec_prefix/bin/gimp-config
     fi
  fi

  if test x$gimp_config_prefix != x ; then
     gimp_config_args="$gimp_config_args --prefix=$gimp_config_prefix"
     if test x${GIMP_CONFIG+set} != xset ; then
        GIMP_CONFIG=$gimp_config_prefix/bin/gimp-config
     fi
  fi

  AC_PATH_PROG(GIMP_CONFIG, gimp-config, no)
  if test "$GIMP_CONFIG" = "no" ; then
    if test x$gimp_config_exec_prefix != x ; then
       gimp_config_args="$gimp_config_args --exec-prefix=$gimp_config_exec_prefix"
       if test x${GIMP_TOOL+set} != xset ; then
          GIMP_TOOL=$gimp_config_exec_prefix/bin/gimptool
       fi
    fi
    if test x$gimp_config_prefix != x ; then
       gimp_config_args="$gimp_config_args --prefix=$gimp_config_prefix"
       if test x${GIMP_TOOL+set} != xset ; then
          GIMP_TOOL=$gimp_config_prefix/bin/gimptool
       fi
    fi
    AC_PATH_PROG(GIMP_TOOL, gimptool, no)
    GIMP_CONFIG=$GIMP_TOOL
  fi

  min_gimp_version=ifelse([$1], ,1.0.0,$1)
  no_gimp=""

  if test "$GIMP_CONFIG" = "no" ; then
dnl we do not have gimp-config (gimp-1.0.x does not have gimp-config)
dnl so we have to use the GTK_* things for testing for gimp.h and gimpfeatures.h
    ac_save_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="${CPPFLAGS} ${GTK_CFLAGS}"
    AC_CHECK_HEADERS(libgimp/gimp.h, GIMP_LIBS="-lgimp", no_gimp=yes)
    AC_CHECK_HEADERS(libgimp/gimpfeatures.h)
    CPPFLAGS="$ac_save_CPPFLAGS"
    CFLAGS="${CFLAGS} ${GTK_CFLAGS}"
    LIBS="${LIBS} ${GTK_LIBS} ${GIMP_LIBS}"
    if test "x$no_gimp" = x ; then
      AC_MSG_CHECKING(GIMP compilation)
      gimp_config_major_version=-1
      gimp_config_minor_version=0
      gimp_config_micro_version=0
    fi
  else
dnl Ok, we have gimp-config and so we do not need the GTK_* things because they are
dnl included in the output of gimp-config
#    GTK_CFLAGS=""
#    GTK_LIBS=""
    GIMP_CFLAGS=`$GIMP_CONFIG $gimp_config_args --cflags`
    GIMP_LIBS=`$GIMP_CONFIG $gimp_config_args --libs`" -lgimp"
    gimp_config_major_version=`$GIMP_CONFIG $gimp_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
    gimp_config_minor_version=`$GIMP_CONFIG $gimp_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
    gimp_config_micro_version=`$GIMP_CONFIG $gimp_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
      CFLAGS="${CFLAGS} ${GIMP_CFLAGS}"
      LIBS="${LIBS} ${GIMP_LIBS}"
      AC_MSG_CHECKING(for GIMP - version >= $min_gimp_version)
  fi

dnl
dnl Now check if the installed GIMP is sufficiently new. (Also sanity
dnl checks the results of gimp-config to some extent
dnl
  if test "x$no_gimp" = x ; then
    if test "x$enable_gimptest" = "xyes" ; then
      rm -f conf.gimptest
      AC_TRY_RUN([
#include <libgimp/gimp.h>
#include <stdio.h>

#define GIMP_TEST_CHECK_VERSION(major, minor, micro) \
    ($gimp_config_major_version > (major) || \
     ($gimp_config_major_version == (major) && $gimp_config_minor_version > (minor)) || \
     ($gimp_config_major_version == (major) && $gimp_config_minor_version == (minor) && \
      $gimp_config_micro_version >= (micro)))                                

#if !GIMP_TEST_CHECK_VERSION(1,1,25)
#  define GimpPlugInInfo GPlugInInfo /* do test with gimp interface version 1.0 */
#endif

GimpPlugInInfo PLUG_IN_INFO =
{
  NULL, NULL, NULL, NULL
};


int 
main ()
{
  int major, minor, micro;

  system ("touch conf.gimptest");

  if (sscanf("$min_gimp_version", "%d.%d.%d", &major, &minor, &micro) != 3) {
     printf("%s, bad version string\n", "$min_gimp_version");
     exit(1);
   }

  if ( ($gimp_config_major_version != -1) &&
       ((gimp_major_version != $gimp_config_major_version) ||
       (gimp_minor_version != $gimp_config_minor_version) ||
       (gimp_micro_version != $gimp_config_micro_version)) )
  {
      printf("\n*** 'gimp-config --version' returned %d.%d.%d, but GIMP (%d.%d.%d)\n", 
             $gimp_config_major_version, $gimp_config_minor_version, $gimp_config_micro_version,
             gimp_major_version, gimp_minor_version, gimp_micro_version);
      printf ("*** was found! If gimp-config was correct, then it is best\n");
      printf ("*** to remove the old version of GIMP. You may also be able to fix the error\n");
      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
      printf("*** required on your system.\n");
      printf("*** If gimp-config was wrong, set the environment variable GIMP_CONFIG\n");
      printf("*** to point to the correct copy of gimp-config, and remove the file config.cache\n");
      printf("*** before re-running configure\n");
  } 
  else
  {
      if ((gimp_major_version > major) ||
        ((gimp_major_version == major) && (gimp_minor_version > minor)) ||
        ((gimp_major_version == major) && (gimp_minor_version == minor) && (gimp_micro_version >= micro)))
      {
        return 0;
       }
     else
      {
        printf("\n*** An old version of GIMP (%d.%d.%d) was found.\n",
               gimp_major_version, gimp_minor_version, gimp_micro_version);
        printf("*** You need a version of GIMP newer than %d.%d.%d. The latest version of\n",
	       major, minor, micro);
        printf("*** GIMP is always available from ftp://ftp.gimp.org.\n");
        printf("***\n");
        printf("*** If you have already installed a sufficiently new version, this error\n");
        printf("*** probably means that the wrong copy of the gimp-config shell script is\n");
        printf("*** being found. The easiest way to fix this is to remove the old version\n");
        printf("*** of GIMP, but you can also set the GIMP_CONFIG environment to point to the\n");
        printf("*** correct copy of gimp-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_gimp=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
     fi
  fi

  if test "x$no_gimp" = x ; then
dnl gimp test succeeded or not tested
     if test "x$enable_gimptest" = "xyes" ; then
       AC_MSG_RESULT(yes)
     else
       AC_MSG_RESULT(not tested)
     fi
     if test "$GIMP_CONFIG" != "no" ; then
       ac_save_CPPFLAGS="$CPPFLAGS"
       CPPFLAGS="${CPPFLAGS} ${GIMP_CFLAGS}"
       AC_CHECK_HEADERS(libgimp/gimp.h)
       AC_CHECK_HEADERS(libgimp/gimpfeatures.h)
       CPPFLAGS="$ac_save_CPPFLAGS"
     fi
     CFLAGS="$ac_save_CFLAGS"
     LIBS="$ac_save_LIBS"
     ifelse([$2], , :, [$2])     
  else
     AC_MSG_RESULT(no)
       if test -f conf.gimptest ; then
        :
       else
        echo "*** Could not run GIMP test program, checking why..."
        CFLAGS="$CFLAGS $GIMP_CFLAGS"
        LIBS="$LIBS $GIMP_LIBS"
        AC_TRY_LINK([
#include <libgimp/gimp.h>
#include <stdio.h>
#define GIMP_TEST_CHECK_VERSION(major, minor, micro) \
    ($gimp_config_major_version > (major) || \
     ($gimp_config_major_version == (major) && $gimp_config_minor_version > (minor)) || \
     ($gimp_config_major_version == (major) && $gimp_config_minor_version == (minor) && \
      $gimp_config_micro_version >= (micro)))                                

#if !GIMP_TEST_CHECK_VERSION(1,1,25)
#  define GimpPlugInInfo GPlugInInfo /* do test with gimp interface version 1.0 */
#endif
GimpPlugInInfo PLUG_IN_INFO = { NULL, NULL, NULL, NULL };
],    [ return ((gimp_major_version) || (gimp_minor_version) || (gimp_micro_version)); ],
      [ echo "*** The test program compiled, but did not run. This usually means"
        echo "*** that the run-time linker is not finding GIMP or finding the wrong"
        echo "*** version of GIMP. If it is not finding GIMP, 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 "***" ])
        CFLAGS="$ac_save_CFLAGS"
        LIBS="$ac_save_LIBS"
     fi
dnl ok, gimp does not work, so we have to use the gtk_* things again
     GIMP_CFLAGS=""
     GIMP_LIBS=""
#     GTK_CFLAGS="$ac_save_GTK_CFLAGS"
#     GTK_LIBS="$ac_save_GTK_LIBS"
#     CFLAGS="${CFLAGS} ${GTK_CFLAGS}"
#     LIBS="${LIBS} ${GTK_LIBS} ${GIMP_LIBS}"
     ifelse([$3], , :, [$3])
  fi
  AC_SUBST(GIMP_CFLAGS)
  AC_SUBST(GIMP_LIBS)
  rm -f conf.gimptest
])


# ********************************************************************
# 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_WITH(sane-prefix,[  --with-sane-prefix=PFX  Prefix where SANE is installed (optional)],
            sane_config_prefix="$withval", sane_config_prefix="")
AC_ARG_WITH(sane-exec-prefix,[  --with-sane-exec-prefix=PFX Exec prefix where SANE is installed (optional)],
            sane_config_exec_prefix="$withval", sane_config_exec_prefix="")
AC_ARG_ENABLE(sanetest, [  --disable-sanetest      Do not try to compile and run a test SANE program], , enable_sanetest=yes)

  if test x$sane_config_exec_prefix != x ; then
     sane_config_args="$sane_config_args --exec-prefix=$sane_config_exec_prefix"
     if test x${SANE_CONFIG+set} != xset ; then
        SANE_CONFIG=$sane_config_exec_prefix/bin/sane-config
     fi
  fi
  if test x$sane_config_prefix != x ; then
     sane_config_args="$sane_config_args --prefix=$sane_config_prefix"
     if test x${SANE_CONFIG+set} != xset ; then
        SANE_CONFIG=$sane_config_prefix/bin/sane-config
     fi
  fi

  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
])

# ********************************************************************