From f5996ff4a1f387c078ecf499ac4279b2300f878c Mon Sep 17 00:00:00 2001
From: YRabbit <rabbit@yrabbit.cyou>
Date: Sat, 16 Sep 2023 15:01:24 +1000
Subject: [PATCH] gowin: Himbaechel. Support DragonFlyBSD

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---
 common/kernel/command.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/common/kernel/command.cc b/common/kernel/command.cc
index c7733674c3..ac154cc6eb 100644
--- a/common/kernel/command.cc
+++ b/common/kernel/command.cc
@@ -156,8 +156,7 @@ std::string proc_self_dirname(void)
 {
     char buf[PATH_MAX + 1] = "", *path, *p;
     // if case argv[0] contains a valid path, return it
-    if (strlen(npnr_path) > 0) {
-        p = strrchr(npnr_path, '/');
+    if (strlen(npnr_path) > 0 && (p = strrchr(npnr_path, '/')) != NULL) {
         snprintf(buf, sizeof buf, "%*s/", (int)(npnr_path - p), npnr_path);
         return buf;
     }