util-linux: fix intermittent build failure

This has been killing builds every once and a while for a long time.

sdk_container/src/third_party/coreos-overlay/sys-apps/util-linux/files/0001-build-sys-create-parent-directory-for-PATHFILES.patch

@@ -0,0 +1,36 @@
+From 652e0379c181b3e7a477f9a67e1ada0988421513 Mon Sep 17 00:00:00 2001
+From: Michael Marineau <michael.marineau@coreos.com>
+Date: Tue, 2 Sep 2014 20:25:39 -0700
+Subject: [PATCH] build-sys: create parent directory for $(PATHFILES)
+
+When building outside the source tree there is nothing to guarantee the
+target directory exists before writing to it. Most of the time this just
+happens to work because something else creates the directory but not
+always. For example:
+
+    $ mkdir build
+    $ cd build
+    $ ../configure --disable-dependency-tracking
+    $ make libuuid/uuid.pc
+      GEN      libuuid/uuid.pc
+    /bin/sh: line 2: libuuid/uuid.pc.tmp: No such file or directory
+    make: *** [libuuid/uuid.pc] Error 1
+---
+ Makefile.am | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Makefile.am b/Makefile.am
+index 79b5aea..08269e2 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -128,6 +128,7 @@ EXTRA_DIST += $(PATHFILES:=.in)
+ 
+ $(PATHFILES): Makefile
+ 	@ rm -f $@ $@.tmp
++	$(AM_V_at) test -d $(dir $@) || mkdir -p $(dir $@)
+ 	$(AM_V_GEN) srcdir=''; \
+ 		test -f ./$@.in || srcdir=$(srcdir)/; \
+ 		$(edit_cmd) $${srcdir}$@.in >$@.tmp
+-- 
+1.8.5.5
+

sdk_container/src/third_party/coreos-overlay/sys-apps/util-linux/util-linux-2.24.2.ebuild

@@ -61,6 +61,7 @@ pkg_setup() {
 }
 
 src_prepare() {
+	epatch "${FILESDIR}/0001-build-sys-create-parent-directory-for-PATHFILES.patch"
 	epatch "${FILESDIR}/0002-lsblk-add-PARTTYPE-tag.patch"
 
 	if [[ ${PV} == 9999 ]] ; then