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/headerparser.cc",
  26     "open-vcdiff/src/headerparser.h",
  27     "open-vcdiff/src/instruction_map.cc",
  28     "open-vcdiff/src/instruction_map.h",
  29     "open-vcdiff/src/rolling_hash.h",
  30     "open-vcdiff/src/testing.h",
  31     "open-vcdiff/src/varint_bigendian.cc",
  32     "open-vcdiff/src/varint_bigendian.h",
  33     "open-vcdiff/src/vcdecoder.cc",
  34     "open-vcdiff/src/vcdiff_defs.h",
  35     "open-vcdiff/src/vcdiffengine.cc",
  36     "open-vcdiff/src/vcdiffengine.h",
  37     "open-vcdiff/vsprojects/config.h",
  38     "open-vcdiff/vsprojects/stdint.h",
  39   ]
  40
  41   public_configs = [ ":sdch_config" ]
  42
  43   deps = [
  44     "//base",
  45     "//third_party/zlib",
  46   ]
  47
  48   # gn orders flags on a target before flags from configs. The default config
  49   # adds -Wall, and these flags have to be after -Wall -- so they need to come
  50   # from a config and can't be on the target directly.
  51   config("sdch_warnings") {
  52     cflags = []
  53     if (is_linux) {
  54       # TODO(mostynb): remove this if open-vcdiff is ever updated for c++11:
  55       cflags += [ "-Wno-deprecated-declarations" ]
  56     }
  57
  58     if (is_clang) {
  59       # sdch uses the pre-c++11 typedef-as-static_assert hack.
  60       # https://code.google.com/p/open-vcdiff/issues/detail?id=44
  61       cflags += [ "-Wno-unused-local-typedef" ]
  62     }
  63   }
  64   configs += [ ":sdch_warnings" ]
  65
  66   if (is_linux || is_android) {
  67     include_dirs = [ "linux" ]
  68   } else if (is_ios) {
  69     include_dirs = [ "ios" ]
  70   } else if (is_mac) {
  71     include_dirs = [ "mac" ]
  72   } else if (is_win) {
  73     include_dirs = [ "win" ]
  74   }
  75
  76   # open-vcdiff's logging.h introduces static initializers. This was
  77   # reported upstream years ago (
  78   # https://code.google.com/p/open-vcdiff/issues/detail?id=33 ). Since
  79   # upstream won't fix this, work around it on the chromium side:
  80   # Inject a header that forwards to base/logging.h instead (which doesn't
  81   # introduce static initializers, and which prevents open-vcdiff's
  82   # logging.h from being used).
  83   if (is_win) {
  84     cflags = [
  85       "/FI",
  86       "sdch/logging_forward.h",
  87     ]
  88   } else {
  89     logging_file = rebase_path("logging_forward.h", root_build_dir)
  90     cflags = [
  91       "-include",
  92       logging_file,
  93     ]
  94   }
  95 }