From 2a923ca73e1abc2c897a4b7ced9ebbd7b6856e1c Mon Sep 17 00:00:00 2001
From: Magnus Jacobsson <magnus.jacobsson@berotec.se>
Date: Sat, 3 Oct 2020 16:16:01 +0200
Subject: [PATCH] Explicitly specify -? as an option in sccmap

---
 doc/libgraph/sccmap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/libgraph/sccmap.c b/doc/libgraph/sccmap.c
index 0c37efc2e..8cd895726 100644
--- a/doc/libgraph/sccmap.c
+++ b/doc/libgraph/sccmap.c
@@ -292,7 +292,7 @@ static void scanArgs(int argc, char **argv)
 
 	CmdName = argv[0];
 	opterr = 0;
-	while ((c = getopt(argc, argv, ":o:sdvS")) != EOF) {
+	while ((c = getopt(argc, argv, ":o:sdvS?")) != EOF) {
 		switch (c) {
 		case 's':
 			StatsOnly = 1;
@@ -311,7 +311,7 @@ static void scanArgs(int argc, char **argv)
 			Silent = 1;
 			break;
 		case '?':
-			if (optopt == '?')
+			if (optopt == '\0')
 				usage(0);
 			else {
 				fprintf(stderr, "%s: option -%c unrecognized\n",
-- 
2.40.0