diff --git a/src/stdafx.h b/src/stdafx.h
--- a/src/stdafx.h
+++ b/src/stdafx.h
@@ -416,7 +416,13 @@ void NORETURN CDECL error(const char *st
 	#define _stricmp strcasecmp
 #endif
 
-#if !defined(MAX_PATH)
+#if defined(MAX_PATH)
+	/* It's already defined, no need to override */
+#elif defined(PATH_MAX) && PATH_MAX > 0
+	/* Use the value from PATH_MAX, if it exists */
+	#define MAX_PATH PATH_MAX
+#else
+	/* If all else fails, hardcode something :( */
 	#define MAX_PATH 260
 #endif