[gegl] gegl: bump required babl version to newest, 0.1.26

[Øyvind Kolås <ok src gnome org>]

commit 2216bff637a112c92469e5ebf3edbfb0ff8679c5
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue May 9 19:06:46 2017 +0200

    gegl: bump required babl version to newest, 0.1.26

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 56d39dc..11e9328 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], [0.1.24])
+m4_define([babl_required_version], [0.1.26])
 m4_define([cairo_required_version], [0.0.0])
 m4_define([gdk_pixbuf_required_version], [2.32.0])
 m4_define([introspection_required_version], [1.32.0])