Index: libc/Makefile
===================================================================
--- libc/Makefile	(revision e4f5d3fbc7b9f45e4d2e8249e9c7f5ef68f280c6)
+++ libc/Makefile	(revision 7e44122e187066222df618328fb2d11c91a0612c)
@@ -59,7 +59,6 @@
 
 kerninc:
-	ln -sf ../../../kernel/generic/include include/kernel
-	-rm include/arch
-	ln -sf kernel/arch include/arch
+	ln -sfn ../../../kernel/generic/include include/kernel
+	ln -sfn kernel/arch include/arch
 
 -include Makefile.depend