[gegl] raw-load: reduce libraw version dependency to 0.15.4

[Øyvind Kolås <ok src gnome org>]

commit 22837c7bf088e803ab4ff8f1d6bf26855ade4c26
Author: Øyvind Kolås <pippin gimp org>
Date:   Mon Jun 8 22:56:54 2015 +0200

    raw-load: reduce libraw version dependency to 0.15.4

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 96f2410..ae31682 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,7 +50,7 @@ m4_define([librsvg_required_version], [2.14.0])
 m4_define([libv4l2_required_version], [1.0.1])
 m4_define([lua_required_version], [5.1.0])
 m4_define([openexr_required_version], [0.0.0])
-m4_define([libraw_required_version], [0.16.0])
+m4_define([libraw_required_version], [0.15.4])
 m4_define([pango_required_version], [0.0.0])
 m4_define([pangocairo_required_version], [0.0.0])
 m4_define([png_required_version], [0.0.0])