--- /usr/portage/gnustep-base/gnustep-gui/gnustep-gui-0.24.0.ebuild.orig	2014-01-29 16:12:22.000000000 +0100
+++ /usr/portage/gnustep-base/gnustep-gui/gnustep-gui-0.24.0.ebuild	2014-07-21 19:02:12.000000000 +0200
@@ -35,6 +35,14 @@
 		Tools/say/GNUmakefile \
 		Tools/speech/GNUmakefile \
 		|| die
+		
+	# cups workaround with clang, bug #517554
+	if [ "$CC" = "clang" ]; then
+		if use cups; then
+			cp "${EPREFIX}"/usr/include/cups/cups.h Printing/GSCUPS/
+			epatch "${FILESDIR}"/${P}-cups-with-clang.patch
+		fi
+	fi
 }
 
 src_configure() {