From 4e57a9e7e60862fcf462e3ee26ac638db1e15eef Mon Sep 17 00:00:00 2001
From: Magnus Jacobsson <Magnus.Jacobsson@berotec.se>
Date: Tue, 20 Oct 2020 08:31:49 +0200
Subject: [PATCH] Fix mm2gv -? to actually print usage instead of error on
macOS
Towards https://gitlab.com/graphviz/graphviz/-/issues/1852.
---
cmd/tools/mm2gv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/cmd/tools/mm2gv.c b/cmd/tools/mm2gv.c
index 73a1f6a97..0c4434d5a 100644
--- a/cmd/tools/mm2gv.c
+++ b/cmd/tools/mm2gv.c
@@ -421,7 +421,7 @@ static void init(int argc, char **argv, parms_t * p)
fprintf(stderr, "%s: option -%c missing argument - ignored\n", cmd, optopt);
break;
case '?':
- if (optopt == '\0')
+ if (optopt == '\0' || optopt == '?')
usage(0);
else {
fprintf(stderr,
--
2.40.0