--- /usr/portage/dev-cpp/gccxml/gccxml-0.9.0_pre20090516.ebuild	2009-05-25 07:05:48.000000000 -0700
+++ gccxml-0.9.0_pre20090516-r1.ebuild	2009-05-30 00:05:46.000000000 -0700
@@ -2,6 +2,8 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/dev-cpp/gccxml/gccxml-0.9.0_pre20090516.ebuild,v 1.5 2009/05/25 13:49:53 armin76 Exp $
 
+EAPI=2
+
 inherit eutils toolchain-funcs
 
 DESCRIPTION="XML output extension to GCC"
@@ -21,13 +23,19 @@
 src_unpack() {
 	mkdir "${MYBUILDDIR}"
 	unpack ${A}
+}
 
+src_prepare() {
 	cd "${S}"
 	# patch below taken from Debian
 	sed -i \
 		-e 's/xatexit.c//' \
 		"${S}/GCC/libiberty/CMakeLists.txt" || die "sed failed"
+	sed -i \
+		-e '/__builtin_isunordered/s:\(.*\):\1\nbool __builtin_va_arg_pack(...)\;:' \
+		"${S}/GCC_XML/Support/GCC/4.3/gccxml_builtins.h" || die "sed failed"
 }
+
 src_compile() {
 	cd "${MYBUILDDIR}"
 	cmake "${S}" \