--- bootstrap-prefix.sh.orig	2013-12-30 08:06:15.000000000 -0600
+++ bootstrap-prefix.sh	2014-01-01 15:00:32.000000000 -0600
@@ -1115,6 +1115,11 @@
 			pkgs=( ${pkgs[@]} sys-apps/darwin-miscutils sys-libs/csu )
 			case "$(gcc --version)" in
 				*"(GCC) 4.2.1 "*|*"Apple LLVM version 5.0"*)
+					# The next 3 lines are a nasty hack to
+					# workaround bug 491098
+					echo "post_src_prepare() { epatch_user; }" >> "${PORTDIR}/profiles/prefix/profile.bashrc"
+					mkdir -p "${EPREFIX}"/etc/portage/patches/sys-devel/gcc-apple
+					"${EPREFIX}"/tmp/usr/bin/wget ${GENTOO_MIRRORS}/experimental/prefix/patches/gcc-apple-4.2.1-inline.patch -O "${EPREFIX}"/etc/portage/patches/sys-devel/gcc-apple/gcc-apple-4.2.1-inline.patch
 					pkgs=( ${pkgs[@]} sys-devel/binutils-apple )
 					;;
 				*"(GCC) 4.0.1 "*)
@@ -1202,6 +1207,10 @@
 	esac
 
 	emerge_pkgs --nodeps "${pkgs[@]}" || return 1
+	rm -rf "${EPREFIX}"/etc/portage/patches
+	# Ensure GNU sed
+	"${EPREFIX}"/tmp/usr/bin/sed -i '/epatch_user/d' \
+		"${PORTDIR}/profiles/prefix/profile.bashrc"
 
 	# --oneshot
 	local pkgs=(