build: Remove FreeType and Fontconfig CPPFLAGS from XTRA_CXXFLAGS. * build-aux/common.mk: New alias FONTCONFIG_CPPFLAGS for FONTCONFIG_CFLAGS. Add FONTCONFIG_CFLAGS to build variables. New alias FT2_CPPFLAGS for FT2_CFLAGS * configure.ac: Don't add FT2_CFLAGS and FONTCONFIG_CFLAGS to XTRA_CXXFLAGS variable. * libinterp/Makefile.am: Add FT2_CPPFLAGS and FONTCONFIG_CPPFLAGS to rule that creates *.df file from *.cc file. * libinterp/corefcn/module.mk: Add FT2_CPPFLAGS and FONTCONFIG_CPPFLAGS to corefcn convenience library CPPFLAGS. * libinterp/corefcn/toplev.cc: Add new FONTCONFIG_CFLAGS to OCTAVE_CONF variable. * libinterp/dldfcn/module-files: Add FT2_CPPFLAGS and FONTCONFIG_CPPFLAGS to __init_gnuplot__.cc build. This is required because of #include "graphics.h". * libinterp/oct-conf.in.h: Add new FONTCONFIG_CFLAGS to OCTAVE_CONF variable.

--- a/libinterp/Makefile.am	Thu Oct 31 20:56:37 2013 +0100
+++ b/libinterp/Makefile.am	Thu Oct 31 13:13:25 2013 -0700
@@ -237,7 +237,8 @@
 ## FIXME -- Shouldn't the build stop if CPP fails here?
 %.df: %.cc
 	$(CXXCPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
-	  $(AM_CPPFLAGS) $(JAVA_CPPFLAGS) $(CPPFLAGS) \
+	  $(AM_CPPFLAGS) $(JAVA_CPPFLAGS) $(FT2_CPPFLAGS) $(FONTCONFIG_CPPFLAGS) \
+		$(CPPFLAGS) \
 	  $(AM_CXXFLAGS) $(CXXFLAGS) \
 	  -DMAKE_BUILTINS $< | $(srcdir)/mkdefs $(srcdir) $< > $@-t
 	mv $@-t $@