diff -r 0014add32e54 -r faf0c78e906b make/linux/makefiles/buildtree.make
--- a/make/linux/makefiles/buildtree.make	Tue Jul 09 14:28:07 2013 +0200
+++ b/make/linux/makefiles/buildtree.make	Wed Jul 10 09:14:25 2013 -0700
@@ -193,6 +193,7 @@
 DATA_MODE/sparc = 32
 DATA_MODE/sparcv9 = 64
 DATA_MODE/amd64 = 64
+DATA_MODE/ppc64 = 64
 
 DATA_MODE = $(DATA_MODE/$(BUILDARCH))