[gtk-osx] Patch for pixman issue 21.

[John Ralls <jralls src gnome org>]

commit f84445ea59db69d894c6725801722313467185ab
Author: John Ralls <jralls ceridwen us>
Date:   Tue Jun 19 11:21:15 2018 -0700

    Patch for pixman issue 21.
    
    See https://gitlab.freedesktop.org/pixman/pixman/issues/21.

 modulesets-stable/gtk-osx.modules | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/modulesets-stable/gtk-osx.modules b/modulesets-stable/gtk-osx.modules
index b620498..6ab00a7 100644
--- a/modulesets-stable/gtk-osx.modules
+++ b/modulesets-stable/gtk-osx.modules
@@ -240,7 +240,10 @@
              autogen-sh="configure">
     <branch version="0.34.0" module="pixman-0.34.0.tar.gz"
             repo="cairographics"
-            hash="sha1:a1b1683c1a55acce9d928fea1ab6ceb79142ddc7"/>
+            hash="sha1:a1b1683c1a55acce9d928fea1ab6ceb79142ddc7">
+      <!-- The patch can be removed at update to 0.34.1 or later, if there ever is one. At this writing 
0.34.0 is 2 years old. -->
+      <patch 
file="https://gitlab.freedesktop.org/pixman/pixman/uploads/1e170b5ee9a319118a2239189a0c4d7d/clang.patch"; 
strip="1"/>
+    </branch>
     <after>
       <dep package="meta-gtk-osx-bootstrap"/>
     </after>