--- old/make/linux/makefiles/buildtree.make	2021-01-25 19:30:10.593571076 +0000
+++ new/make/linux/makefiles/buildtree.make	2021-01-25 19:30:10.474569825 +0000
@@ -201,6 +201,7 @@
 DATA_MODE/sparcv9 = 64
 DATA_MODE/amd64 = 64
 DATA_MODE/ppc64 = 64
+DATA_MODE/aarch64 = 64
 
 DATA_MODE = $(DATA_MODE/$(BUILDARCH))