[gtk-osx] Update LibPNG to 1.5.12

[John Ralls <jralls src gnome org>]

commit 9f4f72e5449be5b1798ce5d680048222c6c57002
Author: John Ralls <jralls ceridwen us>
Date:   Tue Sep 4 15:28:10 2012 -0700

    Update LibPNG to 1.5.12
    
    We'd been holding it back for gdk-pixbuf, but even the version currently
    in stable builds fine with 1.5.12. A recent change to gdk-pixbuf master
    failed with libpng 1.4.

 modulesets-stable/gtk-osx-bootstrap.modules   |    4 +---
 modulesets-unstable/gtk-osx-bootstrap.modules |    4 +---
 modulesets/gtk-osx-bootstrap.modules          |    4 +---
 3 files changed, 3 insertions(+), 9 deletions(-)
---
diff --git a/modulesets-stable/gtk-osx-bootstrap.modules b/modulesets-stable/gtk-osx-bootstrap.modules
index 5313790..a8f84a8 100644
--- a/modulesets-stable/gtk-osx-bootstrap.modules
+++ b/modulesets-stable/gtk-osx-bootstrap.modules
@@ -24,10 +24,8 @@
   <repository type="tarball" name="intltool"
 	       href="http://launchpad.net/intltool/trunk/"/>
 
-<!-- Libpng-1.5 has made private struct definitions; gdk-pixbuf 2-23
-     hasn't adjusted -->
   <autotools id="libpng" autogenargs="--enable-shared" autogen-sh="configure">
-    <branch version="1.4.8" module="libpng/libpng-1.4.8.tar.bz2"
+    <branch version="1.5.12" module="libpng/libpng-1.5.12.tar.bz2"
 	    repo="sourceforge"/>
   </autotools>
 
diff --git a/modulesets-unstable/gtk-osx-bootstrap.modules b/modulesets-unstable/gtk-osx-bootstrap.modules
index 7dce861..93aa636 100644
--- a/modulesets-unstable/gtk-osx-bootstrap.modules
+++ b/modulesets-unstable/gtk-osx-bootstrap.modules
@@ -26,10 +26,8 @@
   <repository type="git" name="git.gnome.org"
               href="git://git.gnome.org/"/>
 
-<!-- Libpng-1.5 has made private struct definitions; gdk-pixbuf 2-23
-     hasn't adjusted -->
   <autotools id="libpng" autogenargs="--enable-shared" autogen-sh="configure">
-    <branch version="1.4.8" module="libpng/libpng-1.4.8.tar.bz2"
+    <branch version="1.5.12" module="libpng/libpng-1.5.12.tar.bz2"
 	    repo="sourceforge"/>
   </autotools>
 
diff --git a/modulesets/gtk-osx-bootstrap.modules b/modulesets/gtk-osx-bootstrap.modules
index f4f8fad..e63d227 100644
--- a/modulesets/gtk-osx-bootstrap.modules
+++ b/modulesets/gtk-osx-bootstrap.modules
@@ -26,10 +26,8 @@
   <repository type="git" name="git.gnome.org"
               href="git://git.gnome.org/"/>
 
-<!-- Libpng-1.5 has made private struct definitions; gdk-pixbuf 2-23
-     hasn't adjusted -->
   <autotools id="libpng" autogenargs="--enable-shared" autogen-sh="configure">
-    <branch version="1.4.8" module="libpng/libpng-1.4.8.tar.bz2"
+    <branch version="1.5.12" module="libpng/libpng-1.5.12.tar.bz2"
 	    repo="sourceforge"/>
   </autotools>