Index: uspace/lib/libc/arch/sparc64/Makefile.inc
===================================================================
--- uspace/lib/libc/arch/sparc64/Makefile.inc	(revision 46d8eb9b258c351fc7a0ec7a45162776b8adc3a2)
+++ uspace/lib/libc/arch/sparc64/Makefile.inc	(revision ac6ee45bc94d73efe9917812965534ddff6bef6a)
@@ -30,6 +30,10 @@
 #
 
+ifndef CROSS_PREFIX
+	CROSS_PREFIX = /usr/local
+endif
+
 TARGET = sparc64-linux-gnu
-TOOLCHAIN_DIR = /usr/local/sparc64/bin
+TOOLCHAIN_DIR = $(CROSS_PREFIX)/sparc64/bin
 
 ARCH_SOURCES += arch/$(ARCH)/src/fibril.S \