--- /var/portage/repos/gentoo/dev-libs/libnl/libnl-3.2.7.ebuild 2012-05-28 18:31:08.000000000 +0200
+++ libnl-3.2.7.ebuild  2012-06-28 20:39:07.000000000 +0200
@@ -16,7 +16,7 @@

 DEPEND="
        sys-devel/flex
-       virtual/yacc
+       >=sys-devel/bison-2.4.2
 "

 src_prepare() {