Index: boot/arch/ppc64/loader/Makefile
===================================================================
--- boot/arch/ppc64/loader/Makefile	(revision 960f84768e13fb491ebebcac42ca8af66a4cd0d3)
+++ boot/arch/ppc64/loader/Makefile	(revision 88944695970ebfd82dce23b26a27ded9fda43fca)
@@ -33,8 +33,12 @@
 #
 
+ifndef CROSS_PREFIX
+	CROSS_PREFIX = /usr/local
+endif
+
 BFD_NAME = elf64-powerpc
 BFD_ARCH = powerpc:common64
 TARGET = ppc64-linux-gnu
-TOOLCHAIN_DIR = /usr/local/ppc64/bin
+TOOLCHAIN_DIR = $(CROSS_PREFIX)/ppc64/bin
 
 ifeq ($(COMPILER),gcc_native)