--- heirloom-mailx-12.4.orig/getopt.c
+++ heirloom-mailx-12.4/getopt.c
@@ -43,7 +43,7 @@
 char	*optarg;
 int	optind = 1;
 int	opterr = 1;
-int	optopt;
+int	optoptc;
 
 static void
 error(const char *s, int c)
@@ -69,7 +69,7 @@
 		*bp++ = *s++;
 	while (*msg)
 		*bp++ = *msg++;
-	*bp++ = optopt;
+	*bp++ = optoptc;
 	*bp++ = '\n';
 	write(2, buf, bp - buf);
 	ac_free(buf);
@@ -101,13 +101,13 @@
 		}
 		curp = &argv[optind][1];
 	}
-	optopt = curp[0] & 0377;
+	optoptc = curp[0] & 0377;
 	while (optstring[0]) {
 		if (optstring[0] == ':') {
 			optstring++;
 			continue;
 		}
-		if ((optstring[0] & 0377) == optopt) {
+		if ((optstring[0] & 0377) == optoptc) {
 			if (optstring[1] == ':') {
 				if (curp[1] != '\0') {
 					optarg = (char *)&curp[1];
@@ -127,7 +127,7 @@
 					optind++;
 				optarg = 0;
 			}
-			return optopt;
+			return optoptc;
 		}
 		optstring++;
 	}
--- heirloom-mailx-12.4.orig/mailx.1
+++ heirloom-mailx-12.4/mailx.1
@@ -3766,7 +3766,7 @@
 .sp
 .fi
 which might cause
-.N mailx
+.B mailx
 to respond with, for example:
 .nf
 .sp