diff -uNr ORIG/net-nds/yp-tools/yp-tools-2.12-r1.ebuild portage/net-nds/yp-tools/yp-tools-2.12-r1.ebuild >ebuild.patch
--- ORIG/net-nds/yp-tools/yp-tools-2.12-r1.ebuild	2015-08-08 19:38:18.000000000 -0500
+++ portage/net-nds/yp-tools/yp-tools-2.12-r1.ebuild	2016-03-08 14:50:47.688581590 -0600
@@ -15,6 +15,10 @@
 KEYWORDS="alpha amd64 ~arm hppa ia64 ~mips ppc ppc64 sparc x86"
 IUSE="nls"
 
+src_prepare() {
+	epatch "${FILESDIR}"/fix-glibc-libc-lock.patch
+}
+
 src_configure() {
 	local myconf="--sysconfdir=/etc/yp"
 	if ! use nls

diff -uNr ORIG/net-nds/yp-tools/files/fix-glibc-libc-lock.patch portage/net-nds/yp-tools/files/fix-glibc-libc-lock.patch >>ebuild.patch 
--- ORIG/net-nds/yp-tools/files/fix-glibc-libc-lock.patch	1969-12-31 18:00:00.000000000 -0600
+++ portage/net-nds/yp-tools/files/fix-glibc-libc-lock.patch	2016-03-08 14:48:54.725518105 -0600
@@ -0,0 +1,11 @@
+--- yp-tools-2.12/src/ypclnt.c.ORIG	2009-03-05 06:40:00.000000000 -0600
++++ yp-tools-2.12/src/ypclnt.c	2016-03-08 14:44:09.227964171 -0600
+@@ -32,7 +32,7 @@
+ #include <rpcsvc/ypupd.h>
+ #include <sys/socket.h>
+ #include <sys/uio.h>
+-#include <bits/libc-lock.h>
++/* #include <bits/libc-lock.h> */
+ 
+ #define __set_errno(err) errno=err;
+ #define _(S) S