Index: kernel/arch/ia32/Makefile.inc
===================================================================
--- kernel/arch/ia32/Makefile.inc	(revision da349da00e6a694ae8529efd7efc34b7534e322f)
+++ kernel/arch/ia32/Makefile.inc	(revision 0c4f46a603589b7cb4d0b2cf3fef9dea77569007)
@@ -30,9 +30,13 @@
 #
 
+ifndef CROSS_PREFIX
+	CROSS_PREFIX = /usr/local
+endif
+
 BFD_NAME = elf32-i386
 BFD_ARCH = i386
 BFD = binary
 TARGET = i686-pc-linux-gnu
-TOOLCHAIN_DIR = /usr/local/i686
+TOOLCHAIN_DIR = $(CROSS_PREFIX)/i686
 
 DEFS += -DMACHINE=$(MACHINE) -D__32_BITS__