diff --git a/lib/libc/alpha/gen/Makefile.inc b/lib/libc/alpha/gen/Makefile.inc
index 091e82af08a..98e0c2af23b 100644
--- a/lib/libc/alpha/gen/Makefile.inc
+++ b/lib/libc/alpha/gen/Makefile.inc
@@ -1,8 +1,10 @@
-#	$Id: Makefile.inc,v 1.1.1.1 1998/03/09 06:34:42 jb Exp $
+#	$Id: Makefile.inc,v 1.2 1998/05/15 12:01:05 jb Exp $
 
 SRCS+=	_setjmp.S fabs.S frexp.c infinity.c isinf.c ldexp.c modf.c setjmp.S
 SRCS+=	flt_rounds.c
+.if defined(NETBSD_SYSCALLS)
 SRCS+=	netbsd_getdtablesize.c
+.endif
 
 #SRCS+=	flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \
 #	fpsetround.c fpsetsticky.c