5 files changed, 5 insertions, 4 deletions
diff --git a/usr.bin/cksum/Makefile b/usr.bin/cksum/Makefile
index f4fa373..4c1d027 100644
--- a/usr.bin/cksum/Makefile
+++ b/usr.bin/cksum/Makefile
@@ -1,6 +1,7 @@
 #	@(#)Makefile	8.2 (Berkeley) 4/28/95
 
 PROG=	cksum
+CFLAGS+=-Wall
 SRCS=	cksum.c crc.c print.c sum1.c sum2.c crc32.c
 LINKS=	${BINDIR}/cksum ${BINDIR}/sum
 MLINKS=	cksum.1 sum.1
diff --git a/usr.bin/cksum/crc.c b/usr.bin/cksum/crc.c
index 3526395..0dde11d 100644
--- a/usr.bin/cksum/crc.c
+++ b/usr.bin/cksum/crc.c
@@ -35,7 +35,7 @@
  */
 
 #ifndef lint
-static char sccsid[] = "@(#)crc.c	8.1 (Berkeley) 6/17/93";
+static const char sccsid[] = "@(#)crc.c	8.1 (Berkeley) 6/17/93";
 #endif /* not lint */
 
 #include <sys/types.h>
diff --git a/usr.bin/cksum/print.c b/usr.bin/cksum/print.c
index 48c38aa..b3a92d3 100644
--- a/usr.bin/cksum/print.c
+++ b/usr.bin/cksum/print.c
@@ -32,7 +32,7 @@
  */
 
 #ifndef lint
-static char sccsid[] = "@(#)print.c	8.1 (Berkeley) 6/6/93";
+static const char sccsid[] = "@(#)print.c	8.1 (Berkeley) 6/6/93";
 #endif /* not lint */
 
 #include <sys/types.h>
diff --git a/usr.bin/cksum/sum1.c b/usr.bin/cksum/sum1.c
index 1975ee2..a46a575 100644
--- a/usr.bin/cksum/sum1.c
+++ b/usr.bin/cksum/sum1.c
@@ -32,7 +32,7 @@
  */
 
 #ifndef lint
-static char sccsid[] = "@(#)sum1.c	8.1 (Berkeley) 6/6/93";
+static const char sccsid[] = "@(#)sum1.c	8.1 (Berkeley) 6/6/93";
 #endif /* not lint */
 
 #include <sys/types.h>
diff --git a/usr.bin/cksum/sum2.c b/usr.bin/cksum/sum2.c
index 7922050..11abb2c 100644
--- a/usr.bin/cksum/sum2.c
+++ b/usr.bin/cksum/sum2.c
@@ -32,7 +32,7 @@
  */
 
 #ifndef lint
-static char sccsid[] = "@(#)sum2.c	8.1 (Berkeley) 6/6/93";
+static const char sccsid[] = "@(#)sum2.c	8.1 (Berkeley) 6/6/93";
 #endif /* not lint */
 
 #include <sys/types.h>