From b1d82f1b27d2c7ba477a7a9deab245839e2ea4eb Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Fri, 3 Jul 2020 19:05:32 +0200
Subject: [PATCH] (zlib) Backport
 https://github.com/jtkukunas/zlib/commit/44e8ac810d7d50381429a15cdc6e48816beafd2b#diff-327188edf18799ffbb5a51cc69f797e8

---
 deps/libz/inflate.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/deps/libz/inflate.c b/deps/libz/inflate.c
index 5403a7bfc0..22408dbf80 100644
--- a/deps/libz/inflate.c
+++ b/deps/libz/inflate.c
@@ -1342,6 +1342,8 @@ int inflateSync(z_streamp strm)
    /* return no joy or set up to restart inflate() on a new block */
    if (state->have != 4)
       return Z_DATA_ERROR;
+   if (state->mode == HEAD)
+        state->wrap = 0;    /* never processed header, so assume raw */
 
    in              = strm->total_in;
    out             = strm->total_out;