Add patch to hopefully close race condition in systemd builds

- Related to https://bugzilla.redhat.com/show_bug.cgi?id=1249051

intltool-merge-Create-cache-file-atomically.patch

@@ -0,0 +1,38 @@
+From d328542bea50b9445c63cdf2454052392282a1ce Mon Sep 17 00:00:00 2001
+From: Colin Walters <walters@verbum.org>
+Date: Thu, 8 Oct 2015 16:25:47 -0400
+Subject: [PATCH] intltool-merge: Create cache file atomically
+
+It's going to be relatively common for build systems operating in
+parallel to run multiple copies of `intltool-merge`, yet the cache
+file is not created atomically (i.e. with the "open .tmp file and
+rename()" dance).
+
+I suspect (but have not yet determined conclusively) this is the cause
+of some systemd build issues where translations don't appear in the
+merged file.
+
+Regardless, this patch can't hurt.
+---
+ intltool-merge.in | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/intltool-merge.in b/intltool-merge.in
+index 1afa2a4..d1eba8f 100644
+--- a/intltool-merge.in
++++ b/intltool-merge.in
+@@ -371,9 +371,10 @@ sub create_cache
+ 
+     &create_translation_database;
+ 
+-    open CACHE, ">$cache_file" || die;
++    open CACHE, ">$cache_file" . ".tmp" || die;
+     print CACHE join "\x01", %translations;
+     close CACHE;
++    rename("$cache_file" . ".tmp", "$cache_file");
+ }
+ 
+ sub load_cache 
+-- 
+1.8.3.1
+

intltool.spec

@@ -1,7 +1,7 @@
 Name: intltool
 Summary: Utility for internationalizing various kinds of data files
 Version: 0.51.0
-Release: 3%{?dist}
+Release: 4%{?dist}
 License: GPLv2 with exceptions
 Group: Development/Tools
 #VCS: bzr:https://code.edge.launchpad.net/~intltool/intltool/trunk
@@ -21,6 +21,9 @@ BuildRequires: gettext
 # which has a sensible gettext integration.
 #Patch0: schemas-merge.patch
 Patch1:  intltool-0.51.0-perl-5.22.patch
+# https://bugs.launchpad.net/intltool/+bug/1505260
+# https://bugzilla.redhat.com/show_bug.cgi?id=1249051
+Patch2: intltool-merge-Create-cache-file-atomically.patch
 
 %description
 This tool automatically extracts translatable strings from oaf, glade,
@@ -30,6 +33,7 @@ them in the po files.
 %prep
 %setup -q
 %patch1 -p1
+%patch2 -p1
 
 %build
 %configure
@@ -51,6 +55,10 @@ make check
 %{_mandir}/man8/intltool*.8*
 
 %changelog
+* Mon Oct 12 2015 Colin Walters <walters@redhat.com> - 0.51.0-4
+- Add patch to hopefully close race condition in systemd builds
+- Related to https://bugzilla.redhat.com/show_bug.cgi?id=1249051
+
 * Mon Jul 13 2015 Ralf Corsépius <corsepiu@fedoraproject.org> - 0.51.0-3
 - Add intltool-0.51.0-perl-5.22.patch (Address RHBZ#1233444)
 - Remove unnecessary %%debug_package.