diff --git a/lib/libc/Makefile b/lib/libc/Makefile
index c5462da99715..772f2d9edbd1 100644
--- a/lib/libc/Makefile
+++ b/lib/libc/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.89 2000/06/02 23:11:05 fvdl Exp $
+#	$NetBSD: Makefile,v 1.90 2000/08/13 22:43:28 christos Exp $
 #	@(#)Makefile	8.2 (Berkeley) 2/3/94
 #
 # All library objects contain sccsid strings by default; they may be
@@ -23,6 +23,8 @@ LIB=		c
 CPPFLAGS+=	-D_LIBC -DNLS -DYP -DHESIOD -DLIBC_SCCS -DSYSLIBC_SCCS \
 		-D_REENTRANT -I${.CURDIR}/include
 CPPFLAGS+=	-DINET6
+# Set lint to exit on warnings and ignore 'empty translation unit' warnings.
+LINTFLAGS+=	-w -X 272
 
 ARCHSUBDIR=	${MACHINE_ARCH:C/mipse[bl]/mips/}
 ARCHDIR=	${.CURDIR}/arch/${ARCHSUBDIR}
@@ -106,7 +108,7 @@ rm-from-libkern:
 
 realall: ${.OBJDIR}/tags
 ${.OBJDIR}/tags: ${SRCS}
-	ctags ${.ALLSRC:M*.c}
+	ctags -w ${.ALLSRC:M*.c}
 	egrep "^ENTRY(.*)|^FUNC(.*)|^SYSCALL(.*)" /dev/null ${.ALLSRC:M*.S} | \
 	    sed "s;\([^:]*\):\([^(]*\)(\([^, )]*\)\(.*\);\3 \1 /^\2(\3\4$$/;" \
 	    >> ${.TARGET}; sort -o ${.TARGET} ${.TARGET}