diff -ruN --exclude=CVS /usr/ports/graphics/gif2png.orig/Makefile /usr/ports/graphics/gif2png/Makefile
--- /usr/ports/graphics/gif2png.orig/Makefile	2011-05-12 02:08:50.000000000 +0200
+++ /usr/ports/graphics/gif2png/Makefile	2011-05-12 02:14:14.000000000 +0200
@@ -6,8 +6,7 @@
 #
 
 PORTNAME=	gif2png
-PORTVERSION=	2.5.2
-PORTREVISION=	1
+PORTVERSION=	2.5.4
 CATEGORIES=	graphics
 MASTER_SITES=	http://www.catb.org/~esr/gif2png/
 
@@ -23,7 +22,7 @@
 MAN1=		${PORTNAME}.1 web2png.1
 PLIST_FILES=	bin/${PORTNAME} bin/web2png
 
-CPPFLAGS=	`libpng-config --I_opts`
-LDFLAGS=	`libpng-config --L_opts`
+CPPFLAGS+=	`libpng-config --I_opts`
+LDFLAGS+=	`libpng-config --L_opts`
 
 .include <bsd.port.mk>
diff -ruN --exclude=CVS /usr/ports/graphics/gif2png.orig/distinfo /usr/ports/graphics/gif2png/distinfo
--- /usr/ports/graphics/gif2png.orig/distinfo	2011-05-12 02:08:50.000000000 +0200
+++ /usr/ports/graphics/gif2png/distinfo	2011-05-12 02:09:48.000000000 +0200
@@ -1,3 +1,2 @@
-MD5 (gif2png-2.5.2.tar.gz) = 2200841f027c8481c4b8519dabf745b0
-SHA256 (gif2png-2.5.2.tar.gz) = c1b4066ad37cdcb8681cecedd63daed8cb5c827344da465270f324bc12ff3ed7
-SIZE (gif2png-2.5.2.tar.gz) = 171740
+SHA256 (gif2png-2.5.4.tar.gz) = 0d78eb568198b568f7c1f535b9ec74fc6546864de11f57924c8e8db510423fef
+SIZE (gif2png-2.5.4.tar.gz) = 125731