http://bugs.gentoo.org/show_bug.cgi?id=263926

Fixes a sanbox violation created by a test when using a file which doesn't 
exist: /none/such. Make it use ./none/such instead.

--- /usr/portage/sys-devel/m4/m4-1.4.12.ebuild
+++ m4-1.4.12.ebuild
@@ -15,6 +15,13 @@
 DEPEND="app-arch/lzma-utils"
 RDEPEND=""
 
+src_unpack() {
+	unpack ${A}
+	cd "${S}"
+	
+	sed -i 's:/none/such:\./none/such:' checks/196.using_froz
+}
+
 src_compile() {
 	local myconf=""
 	[[ ${USERLAND} != "GNU" ]] && myconf="--program-prefix=g"