- adding the libgs detection functions

Ghostscript backend depends on libgs Ghostscript shared library.
- BTW. anyone know how to add a -Lsth flag to KDE_CHECK_LIB so it can be found if nonstandard directory is chosen?


svn path=/trunk/playground/graphics/oKular/kpdf/; revision=445369

generators/Makefile.am

@@ -1 +1,4 @@
-SUBDIRS = ghostview xpdf kimgio
+if include_ghostscript
+GSPLUGINDIR = ghostview
+endif
+SUBDIRS = $(GSPLUGINDIR) xpdf kimgio

generators/configure.in.bot

@@ -0,0 +1,12 @@
+if test -z "$LIB_GS"; then
+echo ""
+echo "The Ghostscript library was not found in your system. ."
+echo "The Ghostscript backend will not be available."
+echo "If you need it, install Ghostscript with shared library,"
+echo "by using 'make so' instead of 'make' when building from"
+echo "sources. For more information check: "
+echo "http://kpdf.kde.org/ghostscript.php"
+echo "or contact your package provider."
+echo ""
+fi
+

generators/configure.in.in

@@ -0,0 +1,17 @@
+ac_gs_libraries=NO
+AC_ARG_WITH(gs-libraries,
+	    AC_HELP_STRING([--with-gs-libraries=DIR],[where the Ghostscript library is installed.]),
+	    [  ac_gs_libraries="$withval" ])
+
+GSLIBDIR=""
+LIB_GS=""
+
+if test "x$ac_gs_libraries" = "xNO"; then
+	GSLIBDIR="-L$ac_gs_libraries"
+fi
+
+KDE_CHECK_LIB(gs, gsapi_new_instance, [LIB_GS="-lgs"])
+
+AM_CONDITIONAL(include_ghostscript, test -n "$LIB_GS")
+   
+