$NetBSD: patch-unix_Makefile.gtk,v 1.1 2012/02/22 15:27:16 wiz Exp $

Allow adding CFLAGS from the pkgsrc environment.
Use pkgsrc infrastructure for deciding on whether to link against libdl or not.
Set prefix suitable for pkgsrc.

--- unix/Makefile.gtk.orig	2011-12-10 12:35:15.000000000 +0000
+++ unix/Makefile.gtk
@@ -119,14 +119,14 @@ GTK_CONFIG = sh -c 'pkg-config gtk+-2.0 
 
 unexport CFLAGS # work around a weird issue with krb5-config
 
-CFLAGS = -O2 -Wall -Werror -g -I.././ -I../charset/ -I../windows/ -I../unix/ \
+CFLAGS += -O2 -Wall -Werror -g -I.././ -I../charset/ -I../windows/ -I../unix/ \
 		-I../macosx/ $(shell $(GTK_CONFIG) --cflags) -D _FILE_OFFSET_BITS=64
 XLDFLAGS = $(LDFLAGS) $(shell $(GTK_CONFIG) --libs)
 ULDFLAGS = $(LDFLAGS)
 ifeq (,$(findstring NO_GSSAPI,$(COMPAT)))
 ifeq (,$(findstring STATIC_GSSAPI,$(COMPAT)))
-XLDFLAGS+= -ldl
-ULDFLAGS+= -ldl
+XLDFLAGS+= ${DL_LIBS}
+ULDFLAGS+= ${DL_LIBS}
 else
 CFLAGS+= -DNO_LIBDL $(shell $(KRB5CONFIG) --cflags gssapi)
 XLDFLAGS+= $(shell $(KRB5CONFIG) --libs gssapi)
@@ -136,7 +136,7 @@ endif
 INSTALL=install
 INSTALL_PROGRAM=$(INSTALL)
 INSTALL_DATA=$(INSTALL)
-prefix=/usr/local
+prefix=${PREFIX}
 exec_prefix=$(prefix)
 bindir=$(exec_prefix)/bin
 mandir=$(prefix)/man