patch 7.4.1767
Problem:    When installing Vim on a GTK system the icon cache is not updated.
Solution:   Update the GTK icon cache when possible. (Kazunobu Kuriyama)
diff --git a/src/config.mk.in b/src/config.mk.in
index 1002d7c..90a3337 100644
--- a/src/config.mk.in
+++ b/src/config.mk.in
@@ -162,6 +162,9 @@
 GRESOURCE_SRC = @GRESOURCE_SRC@
 GRESOURCE_OBJ = @GRESOURCE_OBJ@
 
+GTK_UPDATE_ICON_CACHE = @GTK_UPDATE_ICON_CACHE@
+UPDATE_DESKTOP_DATABASE = @UPDATE_DESKTOP_DATABASE@
+
 ### Any OS dependent extra source and object file
 OS_EXTRA_SRC	= @OS_EXTRA_SRC@
 OS_EXTRA_OBJ	= @OS_EXTRA_OBJ@