Index: head/lib/libc/powerpc/gen/Makefile.inc
===================================================================
--- head/lib/libc/powerpc/gen/Makefile.inc	(revision 307891)
+++ head/lib/libc/powerpc/gen/Makefile.inc	(revision 307892)
@@ -1,7 +1,7 @@
 # $FreeBSD$
 
-.include "${LIBC_SRC}/powerpc/gen/Makefile.common"
+.include "${LIBC_SRCTOP}/powerpc/gen/Makefile.common"
 
 SRCS += fabs.S flt_rounds.c fpgetmask.c fpgetround.c \
 	fpgetsticky.c fpsetmask.c fpsetround.c \
 	_setjmp.S setjmp.S sigsetjmp.S