Integrate SIMD optimisations for zlib

third_party/zlib/zlib.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       'target_name': 'zlib',
       'type': 'static_library',
       'sources': [
@@ skipping 32 matching lines @@
         'include_dirs': [
           '.',
         ],
       },
       'conditions': [
         ['OS!="win"', {
           'product_name': 'chrome_zlib',
         }], ['OS=="android"', {
           'toolsets': ['target', 'host'],
         }],
+        ['OS=="linux" and (target_arch=="ia32" or target_arch=="x64")', {
+           'defines': [ "HAVE_SSE2",
+                        "CHECK_SSE2",
+                        "USE_SSE4_2_CRC_HASH",
+                        "HAVE_PCLMULQDQ" ],
+           'cflags' : ["-msse2", "-msse4.2", "-mpclmul"],

[agl, 2014/09/23 21:41:40]

ditto about these cflags.

+           'sources' : [ 'crc_folding.c',
+                         'fill_window_sse.c',
+                         'x86.c',
+                         'x86.h' ]
+        }]
       ],
     },
     {
       'target_name': 'minizip',
       'type': 'static_library',
       'sources': [
         'contrib/minizip/ioapi.c',
         'contrib/minizip/ioapi.h',
         'contrib/minizip/iowin32.c',
         'contrib/minizip/iowin32.h',
@@ skipping 34 matching lines @@
           # fseeko64. We use fopen, ftell, and fseek instead on these
           # systems.
           'defines': [
             'USE_FILE32API'
           ],
         }],
       ],
     },
   ],
 }