diff --git a/libbb/getpty.c b/libbb/getpty.c
index 6a15cff2f..435e4d09f 100644
--- a/libbb/getpty.c
+++ b/libbb/getpty.c
@@ -19,20 +19,22 @@ int FAST_FUNC xgetpty(char *line)
 	if (p > 0) {
 		grantpt(p); /* chmod+chown corresponding slave pty */
 		unlockpt(p); /* (what does this do?) */
-#ifndef HAVE_PTSNAME_R
-		const char *name;
-		name = ptsname(p); /* find out the name of slave pty */
-		if (!name) {
-			bb_perror_msg_and_die("ptsname error (is /dev/pts mounted?)");
+# ifndef HAVE_PTSNAME_R
+		{
+			const char *name;
+			name = ptsname(p); /* find out the name of slave pty */
+			if (!name) {
+				bb_perror_msg_and_die("ptsname error (is /dev/pts mounted?)");
+			}
+			safe_strncpy(line, name, GETPTY_BUFSIZE);
 		}
-		safe_strncpy(line, name, GETPTY_BUFSIZE);
-#else
+# else
 		/* find out the name of slave pty */
 		if (ptsname_r(p, line, GETPTY_BUFSIZE-1) != 0) {
 			bb_perror_msg_and_die("ptsname error (is /dev/pts mounted?)");
 		}
 		line[GETPTY_BUFSIZE-1] = '\0';
-#endif
+# endif
 		return p;
 	}
 #else
diff --git a/libbb/udp_io.c b/libbb/udp_io.c
index b8fb6755d..7985a9723 100644
--- a/libbb/udp_io.c
+++ b/libbb/udp_io.c
@@ -13,7 +13,7 @@
  * We don't check for errors here. Not supported == won't be used
  */
 void FAST_FUNC
-socket_want_pktinfo(int fd)
+socket_want_pktinfo(int fd UNUSED_PARAM)
 {
 #ifdef IP_PKTINFO
 	setsockopt(fd, IPPROTO_IP, IP_PKTINFO, &const_int_1, sizeof(int));
diff --git a/miscutils/less.c b/miscutils/less.c
index 2c6a79326..045fd2db3 100644
--- a/miscutils/less.c
+++ b/miscutils/less.c
@@ -721,8 +721,8 @@ static void print_found(const char *line)
 	while (match_status == 0) {
 		char *new = xasprintf("%s%.*s"HIGHLIGHT"%.*s"NORMAL,
 				growline ? growline : "",
-				match_structs.rm_so, str,
-				match_structs.rm_eo - match_structs.rm_so,
+				(int)match_structs.rm_so, str,
+				(int)(match_structs.rm_eo - match_structs.rm_so),
 						str + match_structs.rm_so);
 		free(growline);
 		growline = new;