src/build/pagespeed_overrides.gypi

# Copyright 2013 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# PageSpeed overrides for Chromium's common.gypi.
{
  'variables': {
    # Putting a variables dict inside another variables dict looks
    # kind of weird. This is done so that some variables are defined
    # as variables within the outer variables dict here. This is
    # necessary to get these variables defined for the conditions
    # within this variables dict that operate on these variables.
    'variables': {
      # Whether or not we are building for native client.
      'build_nacl%': 0,
    },

    # Copy conditionally-set variables out one scope.
    'build_nacl%': '<(build_nacl)',

    # Conditions that operate on our variables defined above.
    'conditions': [
      ['build_nacl==1', {
        # Disable position-independent code when building under Native
        # Client.
        'linux_fpic': 0,
      }],
    ],


    # Override a few Chromium variables:

    # Chromium uses system shared libraries on Linux by default
    # (Chromium already has transitive dependencies on these libraries
    # via gtk). We want to link these libraries into our binaries so
    # we change the default behavior.
    'use_system_libjpeg': 0,
    'use_system_libpng': 0,
    'use_system_zlib': 0,

    # We don't use google API keys in the PageSpeed build, so disable them.
    'use_official_google_api_keys': 0,

    # Disable the chromium linting plugins since our code doesn't
    # (yet) meet their requirements.
    'clang_use_chrome_plugins': 0,

    # Disable use of special ld gold flags, since it isn't installed
    # by default.
    'linux_use_gold_binary': 0,
    'linux_use_gold_flags': 0,
  },
  'target_defaults': {
    # Make sure our shadow view of chromium source is available to
    # targets that don't explicitly declare their dependencies and
    # assume chromium source headers are available from the root
    # (third_party/modp_b64 is one such target).
    'include_dirs': [
      '<(DEPTH)/third_party/chromium/src',
    ],
    'defines': [
      'CHROMIUM_REVISION=<(chromium_revision)',
    ],

    # ABI-incompatible changes are trouble when you have a library, so turn off
    # _GLIBCXX_DEBUG --- it makes various STL objects have different types and
    # sizes.
    'defines!': [
      '_GLIBCXX_DEBUG=1'
    ],
  },
  'conditions': [
    ['build_nacl==1', {
      'target_defaults': {
        'defines': [
          # NaCL newlib's libpthread.a provides the
          # GetRunningOnValgrind symbol already, so we should not
          # provide it.
          'DYNAMIC_ANNOTATIONS_PROVIDE_RUNNING_ON_VALGRIND=0',
        ],
        'include_dirs': [
          '<(DEPTH)/build/nacl_header_stubs',
        ],
      },
    }],
    ['os_posix==1 and OS!="mac"', {
      'target_defaults': {
        'ldflags': [
          # Fail to link if there are any undefined symbols.
          '-Wl,-z,defs',
        ],
      }
    }],
    ['OS=="mac"', {
      'target_defaults': {
        'xcode_settings': {
          'conditions': [
            ['clang==1', {
              # Chromium's common.gypi does not currently scope the
              # clang binary paths relative to DEPTH, so we must
              # override the paths here.
              'CC': '$(SOURCE_ROOT)/<(DEPTH)/third_party/llvm-build/Release+Asserts/bin/clang',
              'LDPLUSPLUS': '$(SOURCE_ROOT)/<(DEPTH)/third_party/llvm-build/Release+Asserts/bin/clang++',
            }],
          ]
        },
      },
    }],
    ['OS=="win"', {
      'target_defaults': {
        # Remove the following defines, which are normally defined by
        # Chromium's common.gypi.
        'defines!': [
          # Chromium's common.gypi disables tr1. We need it for tr1
          # regex so remove their define to disable it.
          '_HAS_TR1=0',

          # Chromium disables exceptions in some environments, but our
          # use of tr1 regex requires exception support, so we have to
          # re-enable it here.
          '_HAS_EXCEPTIONS=0',
        ],
        'msvs_settings': {
          'VCCLCompilerTool': {
            'ExceptionHandling': '1',  # /EHsc
          },
        },
      },
    }]
  ],
}