--- a/tools/ppl.c	Mon Feb 28 10:18:38 2022 +0200
+++ b/tools/ppl.c	Mon Feb 28 11:49:58 2022 +0200
@@ -550,7 +550,7 @@
 {
     BOOL initSDL = FALSE, audioInit = FALSE;
     DMResource *file = NULL;
-    int res = -1;
+    int res = DMERR_OK;
     BOOL muteState = FALSE;
 
     memset(&eng, 0, sizeof(eng));
@@ -564,20 +564,22 @@
     // Parse arguments
     if (!dmArgsProcess(argc, argv, optList, optListN,
         argHandleOpt, argHandleFile, OPTH_BAILOUT))
-        exit(1);
+        goto out;
 
     // Open the files
     if (optFilename == NULL || argc < 2)
     {
         argShowHelp();
-        return 1;
+        res = dmError(DMERR_INVALID_ARGS,
+            "No filename specified.\n");
+        goto out;
     }
 
     if ((res = dmf_open_stdio(optFilename, "rb", &file)) != DMERR_OK)
     {
         dmErrorMsg("Error opening file '%s': %s\n",
             optFilename, dmErrorStr(res));
-        return 1;
+        goto out;
     }
 
     // Initialize miniJSS
@@ -616,7 +618,7 @@
     {
         dmErrorMsg("Error loading module file: %s\n",
             dmErrorStr(res));
-        goto exit;
+        goto out;
     }
 
     // Check if we have anything
@@ -624,7 +626,7 @@
     {
         res = dmError(DMERR_INIT_FAIL,
             "Could not load module file.\n");
-        goto exit;
+        goto out;
     }
 
     // Try to convert it
@@ -632,7 +634,7 @@
     {
         dmErrorMsg("Could not convert module for playing: %s\n",
             dmErrorStr(res));
-        goto exit;
+        goto out;
     }
 
 
@@ -642,7 +644,7 @@
         res = dmError(DMERR_INIT_FAIL,
             "Could not initialize SDL: %s\n",
             SDL_GetError());
-        goto exit;
+        goto out;
     }
     initSDL = TRUE;
 
@@ -656,7 +658,7 @@
     {
         res = dmError(DMERR_INIT_FAIL,
             "jvmInit() returned NULL\n");
-        goto exit;
+        goto out;
     }
 
     switch (optOutFormat)
@@ -669,7 +671,7 @@
             res = dmError(DMERR_NOT_SUPPORTED,
                 "Unsupported audio format %d (could not set matching SDL format)\n",
                 optOutFormat);
-            goto exit;
+            goto out;
     }
 
     eng.afmt.freq     = optOutFreq;
@@ -684,7 +686,7 @@
         res = dmError(DMERR_INIT_FAIL,
             "Couldn't open SDL audio: %s\n",
             SDL_GetError());
-        goto exit;
+        goto out;
     }
     audioInit = TRUE;
 
@@ -693,7 +695,7 @@
     {
         res = dmError(DMERR_INIT_FAIL,
             "jmpInit() returned NULL\n");
-        goto exit;
+        goto out;
     }
 
     jvmSetCallback(eng.dev, jmpExec, eng.plr);
@@ -718,7 +720,7 @@
         {
             dmErrorMsg("Error opening font file '%s': %s\n",
                 engineFontName, dmErrorStr(res));
-            goto exit;
+            goto out;
         }
         res = dmLoadBitmapFont(file, &font);
         dmf_close(file);
@@ -726,7 +728,7 @@
         {
             dmErrorMsg("Could not load font data from '%s': %s\n",
                 engineFontName, dmErrorStr(res));
-            goto exit;
+            goto out;
         }
 
         SDL_Color pal[DMFONT_NPALETTE];
@@ -748,7 +750,7 @@
             res = dmError(DMERR_INIT_FAIL,
                 "Can't create an SDL window: %s\n",
                 SDL_GetError());
-            goto exit;
+            goto out;
         }
 
         SDL_SetWindowTitle(eng.window, dmProgDesc);
@@ -758,13 +760,13 @@
             res = dmError(DMERR_INIT_FAIL,
                 "Can't create an SDL renderer: %s\n",
                 SDL_GetError());
-            goto exit;
+            goto out;
         }
 
         if (!dmInitializeVideo())
         {
             res = DMERR_INIT_FAIL;
-            goto exit;
+            goto out;
         }
 
         //SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "best");
@@ -854,7 +856,7 @@
                     case SDLK_f:
                         eng.optVFlags ^= SDL_WINDOW_FULLSCREEN_DESKTOP;
                         if (SDL_SetWindowFullscreen(eng.window, eng.optVFlags) != 0)
-                            goto exit;
+                            goto out;
                         needUpdate = TRUE;
                         break;
 
@@ -875,7 +877,7 @@
                         eng.optScrWidth  = eng.event.window.data1;
                         eng.optScrHeight = eng.event.window.data2;
                         if (!dmInitializeVideo())
-                            goto exit;
+                            goto out;
 
                         needUpdate = TRUE;
                         break;
@@ -970,7 +972,7 @@
         SDL_Delay(eng.pauseFlag ? 100 : 30);
     }
 
-exit:
+out:
     // Cleanup
     if (optUseGUI)
     {