[gegl] build: temporarily turn back required babl version to 0.1.12

[Øyvind Kolås <ok src gnome org>]

commit 1e40e397a209b9d091a24891e0c65ee20c8b8c98
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Feb 20 18:53:28 2016 +0100

    build: temporarily turn back required babl version to 0.1.12

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index e3aa6cb..e8d29c0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -37,7 +37,7 @@ m4_define([gegl_stable],
 m4_define([gimp_full_name], [Generic Graphical Library])
 
 # required versions of external libraries
-m4_define([babl_required_version], [0.1.16])
+m4_define([babl_required_version], [0.1.12])
 m4_define([cairo_required_version], [0.0.0])
 m4_define([gdk_pixbuf_required_version], [2.18.0])
 m4_define([introspection_required_version], [1.32.0])