$NetBSD: patch-gtk_Makefile,v 1.1 2014/03/10 08:38:25 he Exp $

Remove references to X11 headers and libs, allow them to
be controlled by pkgsrc.  Also allow CXXFLAGS to be added to.

--- gtk/Makefile.orig	2013-12-09 00:49:20.000000000 +0000
+++ gtk/Makefile
@@ -15,8 +15,8 @@
 # along with this program; if not, see http://www.gnu.org/licenses/.
 ###############################################################################
 
-CXXFLAGS := -MMD -Wall -Wno-parentheses -Wno-write-strings -g -I/usr/X11R6/include -fno-exceptions -fno-rtti $(shell pkg-config --cflags gtk+-2.0) -DVERSION="\"$(shell cat ../VERSION)\""
-LDFLAGS = -L/usr/X11R6/lib
+CXXFLAGS_PRE := -MMD -Wall -Wno-parentheses -Wno-write-strings -g -fno-exceptions -fno-rtti $(shell pkg-config --cflags gtk+-2.0) -DVERSION="\"$(shell cat ../VERSION)\""
+CXXFLAGS += ${CXXFLAGS_PRE}
 LIBS := -lXmu $(shell pkg-config --libs gtk+-2.0)
 
 ifeq "$(shell uname -s)" "Linux"