[gimp] icons: create the directory in the rule to make 12/gimp-default-colors.png

[Michael Natterer <mitch src gnome org>]

commit 72d8bcd6633f5b8017421d31c6bb8c971ebee45d
Author: Michael Natterer <mitch gimp org>
Date:   Tue Jan 12 02:09:05 2016 +0100

    icons: create the directory in the rule to make 12/gimp-default-colors.png

 icons/Symbolic-Inverted/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/icons/Symbolic-Inverted/Makefile.am b/icons/Symbolic-Inverted/Makefile.am
index cbc436a..ff1e90d 100644
--- a/icons/Symbolic-Inverted/Makefile.am
+++ b/icons/Symbolic-Inverted/Makefile.am
@@ -25,6 +25,7 @@ include $(top_srcdir)/icons/Symbolic/icon-list.mk
 # As an exception, we do not want to invert gimp-default-colors.
 # Just use it as-is.
 12/gimp-default-colors.png: $(top_srcdir)/icons/Symbolic/12/gimp-default-colors.png
+       mkdir -p `dirname $<`
        cp -f $< $@
 
 # We are basically repeating the same rule for every subdirectory, which