From c2d6152376d5c56c5aa0d48c4863dba6f2cf65d6 Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Tue, 17 Mar 2015 06:07:27 +0100
Subject: [PATCH] (file_extract.c) Dehardcode one magic number

---
 file_extract.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/file_extract.c b/file_extract.c
index a24733d0cd..d42badb9d2 100644
--- a/file_extract.c
+++ b/file_extract.c
@@ -40,6 +40,10 @@ struct zlib_file_backend
    void (*free)(void *handle); /* Closes, unmaps and frees. */
 };
 
+#ifndef CENTRAL_FILE_HEADER_SIGNATURE
+#define CENTRAL_FILE_HEADER_SIGNATURE 0x02014b50
+#endif
+
 #ifndef END_OF_CENTRAL_DIR_SIGNATURE
 #define END_OF_CENTRAL_DIR_SIGNATURE 0x06054b50
 #endif
@@ -335,7 +339,7 @@ bool zlib_parse_file(const char *file, const char *valid_exts,
       const uint8_t *cdata = NULL;
       uint32_t signature = read_le(directory + 0, 4);
 
-      if (signature != 0x02014b50)
+      if (signature != CENTRAL_FILE_HEADER_SIGNATURE)
          break;
 
       cmode         = read_le(directory + 10, 2);