sdch/BUILD.gn

   1 # Copyright 2014 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 config("sdch_config") {
   6   include_dirs = [ "open-vcdiff/src" ]
   7 }
   8
   9 static_library("sdch") {
  10   sources = [
  11     "logging_forward.h",
  12     "open-vcdiff/src/addrcache.cc",
  13     "open-vcdiff/src/blockhash.cc",
  14     "open-vcdiff/src/blockhash.h",
  15     "open-vcdiff/src/checksum.h",
  16     "open-vcdiff/src/codetable.cc",
  17     "open-vcdiff/src/codetable.h",
  18     "open-vcdiff/src/compile_assert.h",
  19     "open-vcdiff/src/decodetable.cc",
  20     "open-vcdiff/src/decodetable.h",
  21     "open-vcdiff/src/encodetable.cc",
  22     "open-vcdiff/src/encodetable.h",
  23     "open-vcdiff/src/google/output_string.h",
  24     "open-vcdiff/src/google/vcdecoder.h",
  25     "open-vcdiff/src/google/vcencoder.h",
  26     "open-vcdiff/src/headerparser.cc",
  27     "open-vcdiff/src/headerparser.h",
  28     "open-vcdiff/src/instruction_map.cc",
  29     "open-vcdiff/src/instruction_map.h",
  30     "open-vcdiff/src/jsonwriter.cc",
  31     "open-vcdiff/src/jsonwriter.h",
  32     "open-vcdiff/src/rolling_hash.h",
  33     "open-vcdiff/src/testing.h",
  34     "open-vcdiff/src/varint_bigendian.cc",
  35     "open-vcdiff/src/varint_bigendian.h",
  36     "open-vcdiff/src/vcdecoder.cc",
  37     "open-vcdiff/src/vcdiff_defs.h",
  38     "open-vcdiff/src/vcdiffengine.cc",
  39     "open-vcdiff/src/vcdiffengine.h",
  40     "open-vcdiff/src/vcencoder.cc",
  41     "open-vcdiff/vsprojects/config.h",
  42     "open-vcdiff/vsprojects/stdint.h",
  43   ]
  44
  45   public_configs = [ ":sdch_config" ]
  46
  47   deps = [
  48     "//base",
  49     "//third_party/zlib",
  50   ]
  51
  52   # gn orders flags on a target before flags from configs. The default config
  53   # adds -Wall, and these flags have to be after -Wall -- so they need to come
  54   # from a config and can't be on the target directly.
  55   config("sdch_warnings") {
  56     cflags = []
  57     if (is_linux) {
  58       # TODO(mostynb): remove this if open-vcdiff is ever updated for c++11:
  59       cflags += [ "-Wno-deprecated-declarations" ]
  60     }
  61
  62     if (is_clang) {
  63       # sdch uses the pre-c++11 typedef-as-static_assert hack.
  64       # https://code.google.com/p/open-vcdiff/issues/detail?id=44
  65       cflags += [ "-Wno-unused-local-typedef" ]
  66     }
  67   }
  68   configs += [ ":sdch_warnings" ]
  69
  70   if (is_linux || is_android) {
  71     include_dirs = [ "linux" ]
  72   } else if (is_ios) {
  73     include_dirs = [ "ios" ]
  74   } else if (is_mac) {
  75     include_dirs = [ "mac" ]
  76   } else if (is_win) {
  77     include_dirs = [ "win" ]
  78   }
  79
  80   # open-vcdiff's logging.h introduces static initializers. This was
  81   # reported upstream years ago (
  82   # https://code.google.com/p/open-vcdiff/issues/detail?id=33 ). Since
  83   # upstream won't fix this, work around it on the chromium side:
  84   # Inject a header that forwards to base/logging.h instead (which doesn't
  85   # introduce static initializers, and which prevents open-vcdiff's
  86   # logging.h from being used).
  87   if (is_win) {
  88     cflags = [
  89       "/FI",
  90       "sdch/logging_forward.h",
  91     ]
  92   } else {
  93     logging_file = rebase_path("logging_forward.h", root_build_dir)
  94     cflags = [
  95       "-include",
  96       logging_file,
  97     ]
  98   }
  99 }