From 5998c51324112f9c534a0c1f9a8b96e66db272f8 Mon Sep 17 00:00:00 2001
From: Sylvain Becker <sylvain.becker@gmail.com>
Date: Wed, 19 Jun 2019 09:16:53 +0200
Subject: [PATCH] KMSDRM: fix compilation on linux, no d_namlen (Bug 4624)

---
 src/video/kmsdrm/SDL_kmsdrmvideo.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/video/kmsdrm/SDL_kmsdrmvideo.c b/src/video/kmsdrm/SDL_kmsdrmvideo.c
index ea103cb31ed56..b1a18acac8768 100644
--- a/src/video/kmsdrm/SDL_kmsdrmvideo.c
+++ b/src/video/kmsdrm/SDL_kmsdrmvideo.c
@@ -101,7 +101,11 @@ static int get_dricount(void)
     folder = opendir(KMSDRM_DRI_PATH);
     if (folder) {
         while ((res = readdir(folder))) {
-            if (res->d_namlen > 4 && strncmp(res->d_name, "card", 4)) {
+            int len = 0;
+            if (res->d_name) {
+                len = SDL_strlen(res->d_name);
+            }
+            if (len > 4 && strncmp(res->d_name, "card", 4)) {
                 devcount++;
             }
         }