libarchive: Remove our copy to make room for new import

1 files changed, 0 insertions, 64 deletions

diff --git a/Utilities/cmlibarchive/libarchive/archive_crc32.h b/Utilities/cmlibarchive/libarchive/archive_crc32.h
deleted file mode 100644
index 108bc54945..0000000000
--- a/Utilities/cmlibarchive/libarchive/archive_crc32.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*-
- * Copyright (c) 2009 Joerg  Sonnenberger
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __LIBARCHIVE_BUILD
-#error This header is only to be used internally to libarchive.
-#endif
-
-/*
- * When zlib is unavailable, we should still be able to validate
- * uncompressed zip archives.  That requires us to be able to compute
- * the CRC32 check value.  This is a drop-in compatible replacement
- * for crc32() from zlib.  It's slower than the zlib implementation,
- * but still pretty fast: This runs about 300MB/s on my 3GHz P4
- * compared to about 800MB/s for the zlib implementation.
- */
-static unsigned long
-crc32(unsigned long crc, const void *_p, size_t len)
-{
-    unsigned long crc2, b, i;
-    const unsigned char *p = _p;
-    static volatile int crc_tbl_inited = 0;
-    static unsigned long crc_tbl[256];
-
-    if (!crc_tbl_inited) {
-        for (b = 0; b < 256; ++b) {
-            crc2 = b;
-            for (i = 8; i > 0; --i) {
-                if (crc2 & 1)
-                    crc2 = (crc2 >> 1) ^ 0xedb88320UL;
-                else    
-                    crc2 = (crc2 >> 1);
-            }
-            crc_tbl[b] = crc2;
-        }
-        crc_tbl_inited = 1;
-    }
-
-    crc = crc ^ 0xffffffffUL;
-    while (len--)
-        crc = crc_tbl[(crc ^ *p++) & 0xff] ^ (crc >> 8);
-    return (crc ^ 0xffffffffUL);
-}