From 8499dc57c526e4a23c5ea6c58fdf634d6d625c17 Mon Sep 17 00:00:00 2001
From: Bill Kendrick <nbs@sonic.net>
Date: Sat, 22 Feb 2025 12:03:18 -0800
Subject: [PATCH] dirwalk.c: Add debug option to show opendir() failures

---
 src/dirwalk.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/dirwalk.c b/src/dirwalk.c
index d5f5363fc..a7ed5d366 100644
--- a/src/dirwalk.c
+++ b/src/dirwalk.c
@@ -1,7 +1,7 @@
 /*
   dirwalk.c
 
-  Copyright (c) 2009-2023
+  Copyright (c) 2009-2025
   https://tuxpaint.org/
 
   This program is free software; you can redistribute it and/or modify
@@ -19,9 +19,11 @@
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   (See COPYING.txt)
 
-  Last modified: April 30, 2023
+  Last modified: February 22, 2025
 */
 
+/* #define DIRWALK_DEBUG */
+
 #include <stdio.h>
 #include <stdlib.h>
 #ifndef __USE_GNU
@@ -354,6 +356,7 @@ void tp_ftw(SDL_Surface *screen, SDL_Texture *texture,
 
   /* Open the directory: */
   d = opendir(dir);
+
 #ifdef __ANDROID__
   char *di;
   AAssetDir *adir;
@@ -365,11 +368,21 @@ void tp_ftw(SDL_Surface *screen, SDL_Texture *texture,
     di = strndup(dir, dlen);
     adir = open_asset_dir(di);
     if (!adir)
+    {
+#ifdef DIRWALK_DEBUG
+      printf("tp_ftw() can't opendir(%s)\n", dir);
+#endif
       return;
+    }
   }
 #else
   if (!d)
+  {
+#ifdef DIRWALK_DEBUG
+    printf("tp_ftw() can't opendir(%s)\n", dir);
+#endif
     return;
+  }
 #endif
 
   for (;;)