Index: gmp-6.0.0a.ebuild
===================================================================
RCS file: /var/cvsroot/gentoo-x86/dev-libs/gmp/gmp-6.0.0a.ebuild,v
retrieving revision 1.2
diff -u -r1.2 gmp-6.0.0a.ebuild
--- gmp-6.0.0a.ebuild	8 May 2014 20:01:45 -0000	1.2
+++ gmp-6.0.0a.ebuild	24 Jun 2014 08:27:34 -0000
@@ -65,6 +65,7 @@
 	export GMPABI
 
 	tc-export CC
+	[[ ${USERLAND} != "GNU" ]] && export M4="gm4"
 	ECONF_SOURCE="${S}" econf \
 		--localstatedir=/var/state/gmp \
 		--enable-shared \