From 7760ef3a345035d7bef2519c7a768610d6b93155 Mon Sep 17 00:00:00 2001
From: Justus Winter <teythoon@avior.uberspace.de>
Date: Thu, 17 May 2018 16:10:42 +0200
Subject: [PATCH] Simulator: fix argument parsing.

When getopt_long sets *flag to val, it returns 0.  Previously this
was considered an error. See getopt(3).
---
 simulator/simulator.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/simulator/simulator.c b/simulator/simulator.c
index 7938662..1f735b8 100644
--- a/simulator/simulator.c
+++ b/simulator/simulator.c
@@ -96,6 +96,9 @@ void sim_start(int argc, char** argv) {
 
   while ((c = getopt_long (argc, argv, shortopts, opts, &index)) != -1)
     switch (c) {
+    case 0:
+      // Long option without short counterpart.
+      break;
     case 'q':
       verbose = 0;
       break;