$NetBSD: patch-ab,v 1.2 2005/09/08 19:06:03 rpaulo Exp $

--- Makefile.orig	2005-05-21 23:39:44.000000000 +0100
+++ Makefile	2005-09-07 23:27:16.000000000 +0100
@@ -458,19 +458,12 @@
 # libpng config
 ifdef WITH_PNG
 CDEFS += -DWITH_PNG
-CFLAGS += $(shell libpng-config --cflags)
+CFLAGS += $(shell pkg-config --cflags libpng12)
 
-# seems like older libpng versions are broken and need this
-PNGCONFIG_FLAGS = --ldflags --libs
 ifdef STATIC
-ifdef OSX
-# Seems like we need a tiny hack for OSX static to work
-LIBS += $(shell libpng-config --prefix)/lib/libpng.a
-else
-LIBS += $(shell libpng-config --static $(PNGCONFIG_FLAGS))
-endif
+LIBS += $(shell pkg-config --static libpng12)
 else
-LIBS += $(shell libpng-config  --L_opts $(PNGCONFIG_FLAGS))
+LIBS += $(shell pkg-config --libs libpng12)
 endif
 endif