--- gcc-6.3.0.ebuild.orig	2017-08-19 18:45:46.352941173 +0100
+++ gcc-6.3.0.ebuild.orig	2017-08-19 18:46:00.592941288 +0100
@@ -21,4 +21,6 @@ 
 
 src_prepare() {
 	toolchain_src_prepare
+
+	epatch "${FILESDIR}"/6.3.0/0001-Remove-P-macro-gnat-makefile.patch
 }