From: Magnus Jacobsson <magnus.jacobsson@berotec.se>
Date: Sat, 3 Oct 2020 14:17:01 +0000 (+0200)
Subject: Explicitly specify -? as an option in lib/spine/spine.c
X-Git-Tag: 2.46.0~20^2^2~47^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=421c1fa2c01fe9255b47dd414a22099f9f082377;p=graphviz

Explicitly specify -? as an option in lib/spine/spine.c
---

diff --git a/lib/spine/spine.c b/lib/spine/spine.c
index 791dc4580..4bdab515b 100644
--- a/lib/spine/spine.c
+++ b/lib/spine/spine.c
@@ -610,7 +610,7 @@ static void doOpts(int argc, char *argv[], opts_t * op)
 	op->sparse_ratio = 0.5;
 
 	opterr = 0;
-	while ((c = getopt(argc, argv, "o:r:v::")) != -1) {
+	while ((c = getopt(argc, argv, "o:r:v::?")) != -1) {
 		switch (c) {
 		case 'o':
 			op->outfp = openFile(cmd, optarg, "w");
@@ -632,7 +632,7 @@ static void doOpts(int argc, char *argv[], opts_t * op)
 			}
 			break;
 		case '?':
-			if (optopt == '?')
+			if (optopt == '\0')
 				usage(cmd, 0);
 			else {
 				fprintf(stderr, "%s: option -%c unrecognized\n",