Subject: sync zlib's crypt.h with version in Tcl 8.7

From: "jan.nijtmans" <[email-masked]>
Date: Fri, 19 Jun 2020 10:27:45 +0000

---
 compat/zlib/contrib/minizip/crypt.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/compat/zlib/contrib/minizip/crypt.h b/compat/zlib/contrib/minizip/crypt.h
index 2c3044b..4da804a 100644
--- a/compat/zlib/contrib/minizip/crypt.h
+++ b/compat/zlib/contrib/minizip/crypt.h
@@ -29,12 +29,6 @@
 
 #define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
 
-#ifdef Z_U4
-   typedef Z_U4 z_crc_t;
-#else
-   typedef unsigned long z_crc_t;
-#endif
-
 /***********************************************************************
  * Return the next byte in the pseudo-random sequence
  */
@@ -43,6 +37,7 @@ static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
     unsigned temp;  /* POTENTIAL BUG:  temp*(temp^1) may overflow in an
                      * unpredictable manner on 16-bit systems; not a problem
                      * with any known compiler so far, though */
+    (void)pcrc_32_tab;
 
     temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
     return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
-- 
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