--- boot0-9.1_rc3.ebuild.orig	2012-11-06 21:52:54.000000000 +0900
+++ boot0-9.1_rc3.ebuild	2012-11-25 02:13:26.000000000 +0900
@@ -34,6 +34,21 @@
 }
 
 src_prepare() {
+	#gcc 4.6 support
+	if [ `echo $(tc-getCC) | grep gcc` ] ; then
+		GCCVER=`$(tc-getCC) -dumpversion`
+		GCCMAJOR=`echo ${GCCVER} | cut -f1 -d.`
+		GCCMINOR=`echo ${GCCVER} | cut -f2 -d.`
+		if [[ ${GCCMAJOR} -eq 4 && ${GCCMINOR} -ge 6 ]] ; then
+			einfo "Detect gcc-4.6 or later version."
+			epatch "${FILESDIR}"/${PN}-9.1-gcc46.patch
+			sed -i -e '/-m elf_i386_fbsd/d' "${S}"/i386/Makefile.inc || die
+			for dir in boot2 gptboot zfsboot gptzfsboot; do
+				sed -i -e 's:^LDFLAGS=\(.*\):LDFLAGS=\1 -m elf_i386_fbsd:' "${S}"/i386/${dir}/Makefile || die
+			done
+		fi
+	fi
+
 	sed -e '/-fomit-frame-pointer/d' -e '/-mno-align-long-strings/d' \
 		-i "${S}"/i386/boot2/Makefile \
 		-i "${S}"/i386/gptboot/Makefile \