Index: boot/arch/ppc32/loader/Makefile
===================================================================
--- boot/arch/ppc32/loader/Makefile	(revision 80791a7214b411e1af8266d1f280249f724a3652)
+++ boot/arch/ppc32/loader/Makefile	(revision 69145dae045b049d3f508dcd8da43aafe18f8710)
@@ -33,8 +33,12 @@
 #
 
+ifndef CROSS_PREFIX
+	CROSS_PREFIX = /usr/local
+endif
+
 BFD_NAME = elf32-powerpc
 BFD_ARCH = powerpc:common
 TARGET = ppc-linux-gnu
-TOOLCHAIN_DIR = /usr/local/ppc/bin
+TOOLCHAIN_DIR = $(CROSS_PREFIX)/ppc/bin
 
 ifeq ($(COMPILER),gcc_native)