4 files changed, 5 insertions, 3 deletions

diff --git a/lib/libc/locale/utf2.c b/lib/libc/locale/utf2.c
index c46dd93b6125..52b4cad0f40f 100644
--- a/lib/libc/locale/utf2.c
+++ b/lib/libc/locale/utf2.c
@@ -48,7 +48,7 @@ static char sccsid[] = "@(#)utf2.c	8.1 (Berkeley) 6/4/93";
 rune_t	_UTF2_sgetrune __P((const char *, size_t, char const **));
 int	_UTF2_sputrune __P((rune_t, char *, size_t, char **));
 
-static _utf_count[16] = {
+static int _utf_count[16] = {
 	1, 1, 1, 1, 1, 1, 1, 1,
 	0, 0, 0, 0, 2, 2, 3, 0,
 };
diff --git a/lib/libc/string/memset.c b/lib/libc/string/memset.c
index 55cca110a3da..afe5f9642b83 100644
--- a/lib/libc/string/memset.c
+++ b/lib/libc/string/memset.c
@@ -68,7 +68,9 @@ memset(dst0, c0, length)
 #endif
 {
 	register size_t t;
+#ifndef BZERO
 	register u_int c;
+#endif
 	register u_char *dst;
 
 	dst = dst0;
diff --git a/lib/libc/string/strcat.c b/lib/libc/string/strcat.c
index 343696719b71..95dcd1d7029c 100644
--- a/lib/libc/string/strcat.c
+++ b/lib/libc/string/strcat.c
@@ -45,6 +45,6 @@ strcat(s, append)
 	char *save = s;
 
 	for (; *s; ++s);
-	while (*s++ = *append++);
+	while ((*s++ = *append++));
 	return(save);
 }
diff --git a/lib/libc/string/strcpy.c b/lib/libc/string/strcpy.c
index d1791dd00c35..c9b44b13b125 100644
--- a/lib/libc/string/strcpy.c
+++ b/lib/libc/string/strcpy.c
@@ -45,6 +45,6 @@ strcpy(to, from)
 {
 	char *save = to;
 
-	for (; *to = *from; ++from, ++to);
+	for (; (*to = *from); ++from, ++to);
 	return(save);
 }