Index: devel/powerpc64-gcc/Makefile
===================================================================
--- devel/powerpc64-gcc/Makefile
+++ devel/powerpc64-gcc/Makefile
@@ -47,7 +47,8 @@
 		--with-gmp=${LOCALBASE} \
 		--with-pkgversion="FreeBSD Ports Collection for ${PKGNAMEPREFIX:C/-//g}" \
 		--with-system-zlib \
-		--with-gcc-include-dir=/usr/include/c++/v1/ \
+		--with-gxx-include-dir=/usr/include/c++/v1/ \
+		--with-sysroot="/" \
 		--with-as=${LOCALBASE}/bin/${BU_PREFIX}-as \
 		--with-ld=${LOCALBASE}/bin/${BU_PREFIX}-ld