1 files changed, 98 insertions, 0 deletions
diff --git a/print/lyx15/files/xforms.m4 b/print/lyx15/files/xforms.m4
new file mode 100644
index 000000000000..bbfc6c7d0c9f
--- /dev/null
+++ b/print/lyx15/files/xforms.m4
@@ -0,0 +1,98 @@
+dnl some macros to test for xforms-related functionality  -*- sh -*-
+
+dnl Usage LYX_PATH_XFORMS: Checks for xforms library and flags
+dnl   If it is found, the variable XFORMS_LIB is set to the relevant -l flags,
+dnl and FORMS_H_LOCATION / FLIMAGE_H_LOCATION is also set
+AC_DEFUN(LYX_PATH_XFORMS,[
+AC_REQUIRE([LYX_PATH_XPM])
+
+AC_CHECK_LIB(forms, fl_initialize, XFORMS_LIB="-lforms",
+  [AC_CHECK_LIB(xforms, fl_initialize, XFORMS_LIB="-lxforms",
+    [LYX_LIB_ERROR(libforms or libxforms,xforms)], $XPM_LIB)], $XPM_LIB)
+AC_SUBST(XFORMS_LIB)
+
+### Check for xforms headers
+lyx_cv_forms_h_location="<forms.h>"
+AC_CHECK_HEADER(X11/forms.h,[
+  ac_cv_header_forms_h=yes
+  lyx_cv_forms_h_location="<X11/forms.h>"],[
+AC_CHECK_HEADER(forms.h,[],[
+LYX_LIB_ERROR(forms.h,forms)])])
+AC_DEFINE_UNQUOTED(FORMS_H_LOCATION,$lyx_cv_forms_h_location,
+   [define this to the location of forms.h to be used with #include, e.g. <forms.h>])
+
+if test $ac_cv_header_forms_h = yes; then
+  AC_CACHE_CHECK([xforms header version],lyx_cv_xfversion,
+  [ cat > conftest.$ac_ext <<EOF
+#line __oline__ "configure"
+#include "confdefs.h"
+
+#include FORMS_H_LOCATION
+#if ! defined(FL_INCLUDE_VERSION)
+"%%%"(unknown)"%%%"
+#else
+"%%%"FL_VERSION.FL_REVISION.FL_FIXLEVEL"%%%"
+#endif
+EOF
+lyx_cv_xfversion=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
+  grep '^"%%%"'  2>/dev/null | \
+  sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
+rm -f conftest*])
+
+XFORMS_VERSION=$lyx_cv_xfversion
+case "$lyx_cv_xfversion" in
+  "(unknown)"|0.8[1-7]*)
+	 LYX_ERROR(dnl
+Version $lyx_cv_xfversion of xforms is not compatible with LyX.
+   This version of LyX works best with versions 0.88 (recommended) and later.) ;;
+    0.88*) ;;
+    0.89[01234]) LYX_WARNING(dnl
+LyX should work ok with version $lyx_cv_xfversion of xforms[,] but
+it is an unproven version and might still have some bugs. You should
+probably use version 0.89.6 (or 0.88) instead) ;;
+    0.89*) ;;
+    0.9999*) ;;
+    1.0*) ;;
+       *) LYX_WARNING(dnl
+Version $lyx_cv_xfversion of xforms might not be compatible with LyX[,]
+ since it is newer than 0.89. You might have slight problems with it.);;
+esac
+fi
+])
+
+
+
+dnl Check whether the xforms library has a viable image loader
+AC_DEFUN(LYX_USE_XFORMS_IMAGE_LOADER,
+[AC_REQUIRE([LYX_PATH_XFORMS])
+save_LIBS=$LIBS
+LIBS="$XFORMS_LIB $XPM_LIB $LIBS"
+lyx_use_xforms_image_loader=no
+AC_LANG_SAVE
+AC_LANG_C
+
+AC_CHECK_LIB(jpeg, jpeg_read_header,
+  [XFORMS_IMAGE_LIB=-ljpeg
+   LIBS="$LIBS -ljpeg"])
+AC_SEARCH_LIBS(flimage_dup, flimage,
+  [lyx_use_xforms_image_loader=yes
+   if test "$ac_cv_search_flimage_dup" != "none required" ; then
+     XFORMS_IMAGE_LIB="-lflimage $XFORMS_IMAGE_LIB"
+     LIBS="$XFORMS_IMAGE_LIB $LIBS"
+  fi])
+AC_SUBST(XFORMS_IMAGE_LIB)
+
+if test $lyx_use_xforms_image_loader = yes ; then
+  lyx_flags="$lyx_flags xforms-image-loader"
+  AC_DEFINE(USE_XFORMS_IMAGE_LOADER, 1,
+	    [Define if you want to use xforms built-in image loader])
+  AC_CHECK_FUNCS(flimage_enable_ps flimage_enable_jpeg)
+  AC_CHECK_HEADERS(flimage.h X11/flimage.h, break)
+fi
+
+### If the gui cannot load images itself, then we default to the
+### very simple one in graphics/GraphicsImageXPM.[Ch]
+AM_CONDITIONAL(USE_BASIC_IMAGE_LOADER,
+	       test $lyx_use_xforms_image_loader = no)
+AC_LANG_RESTORE
+LIBS=$save_LIBS])