dgen local fix for the quotes issue

programs/emulator/dgen-sdl-1.33/main.cpp

@@ -31,6 +31,10 @@
 #include <OS.h>
 #endif
 
+#ifndef MAX_PATH
+#define MAX_PATH 1024
+#endif
+
 #ifdef __MINGW32__
 static long dgen_mingw_detach = 1;
 #endif
@@ -427,8 +431,34 @@ int main(int argc, char *argv[])
       samples = (dgen_soundsegs * (rate / dgen_hz));
       pd_sound_init(rate, samples);
     }
+	
+	char path_buf[MAX_PATH]; 
+	char *p = path_buf;
+	int r;
 
-	rom = argv[optind];
+	path_buf[0] = '\0';
+
+	for (r = optind; r < argc; ++r) {
+		if (r > optind) { // Append a space in later iterations
+			if (p - path_buf < sizeof(path_buf) - 2) *p++ = ' ';
+		}
+		
+		char *src = argv[r];
+		while (*src && (p - path_buf < sizeof(path_buf) - 1)) {
+			*p++ = *src++;
+		}
+		*p = '\0';
+
+		if (access(path_buf, F_OK) == 0) {
+			rom = path_buf; // Point rom to the static buffer
+			optind = r; // Update optind
+			break;
+		}
+	}
+	
+	if (!rom && optind < argc) {
+		rom = argv[optind];
+	}
 	// Create the megadrive object.
 	megad = new md(dgen_pal, dgen_region);
 	if ((megad == NULL) || (!megad->okay())) {