[gimp] Fix the build process

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit fb1b7a835b19f5eea85739233ac2a7566db1edd8
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Mon Jun 12 03:31:20 2017 +0300

    Fix the build process

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 150c821..c8b24ff 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2627,6 +2627,7 @@ data/patterns/Wood/Makefile
 data/tags/Makefile
 data/tips/Makefile
 data/tool-presets/Makefile
+data/tool-presets/Crop/Makefile
 data/tool-presets/FX/Makefile
 data/tool-presets/Paint/Makefile
 data/tool-presets/Selection/Makefile