common.gypi

{
  'make_global_settings': [
    # chrome normally links using the C++ compiler, but all of our code
    # is pure C, and we don't want to link in libstdc++.
    ['LINK', '$(CC)'],
    ['LINK.host', '$(CC)'],
  ],

  'target_defaults': {
    'default_configuration': 'Debug',
    'configurations': {
      'Debug': {
        'defines': [ 'DEBUG', '_DEBUG' ],
        'cflags': [ '-g', '-O0' ],
        'conditions': [
          ['target_arch=="x64"',
            {
              'msvs_configuration_platform': 'x64',
              'xcode_settings': { 'ARCHS': ['x86_64']
              },
            }
          ],
          ['target_arch=="ia32"',
            {
              'xcode_settings': { 'ARCHS': ['i386']
              },
            }
          ],
        ],
        'msvs_settings': {
          'VCCLCompilerTool': {
            'target_conditions': [
              ['library=="static_library"',
                {
                  'RuntimeLibrary': 1, # static debug
                },
                {
                  'RuntimeLibrary': 3, # DLL debug
                }
              ],
            ],
            'Optimization': 0, # /Od, no optimization
            'MinimalRebuild': 'true',
            'OmitFramePointers': 'false',
            'BasicRuntimeChecks': 3, # /RTC1
            'MultiProcessorCompilation': 'false',
          },
          'VCLinkerTool': {
            'LinkIncremental': 2, # enable incremental linking
          },
        },
      },
      'Release': {
        'cflags': [ '-O3', '-fdata-sections', '-ffunction-sections' ],
        'conditions': [
          ['target_arch=="x64"',
            {
              'msvs_configuration_platform': 'x64',
              'xcode_settings': { 'ARCHS': ['x86_64']
              },
            }
          ],
          ['target_arch=="ia32"',
            {
              'xcode_settings': { 'ARCHS': ['i386']
              },
            }
          ],
        ],
        'msvs_settings': {
          'VCCLCompilerTool': {
            'target_conditions': [
              ['library=="static_library"',
                {
                  'RuntimeLibrary': 0, # static release
                },
                {
                  'RuntimeLibrary': 2, # debug release
                }
              ],
            ],
            'Optimization': 3, # /Ox, full optimization
            'FavorSizeOrSpeed': 1, # /Ot, favour speed over size
            'InlineFunctionExpansion': 2, # /Ob2, inline anything eligible
            'WholeProgramOptimization': 'true', # /GL, whole program optimization, needed for LTCG
            'OmitFramePointers': 'true',
            'EnableFunctionLevelLinking': 'true',
            'EnableIntrinsicFunctions': 'true',
            'TargetMachine': 'x86',
          },
          'VCLibrarianTool': {
            'AdditionalOptions': [
              '/LTCG', # link time code generation
            ],
          },
          'VCLinkerTool': {
            'LinkTimeCodeGeneration': 1, # link-time code generation
            'OptimizeReferences': 2, # /OPT:REF
            'EnableCOMDATFolding': 2, # /OPT:ICF
            'LinkIncremental': 1, # disable incremental linking
          },
        },
      }
    },
    'msvs_settings': {
      'VCCLCompilerTool': {
        'StringPooling': 'true', # pool string literals
        'DebugInformationFormat': 3, # Generate a PDB
        'WarningLevel': 3,
        'BufferSecurityCheck': 'true',
        'ExceptionHandling': 1, # /EHsc
        'SuppressStartupBanner': 'true',
        'WarnAsError': 'false',
      },
      'VCLibrarianTool': {
      },
      'VCLinkerTool': {
        'GenerateDebugInformation': 'true',
        'RandomizedBaseAddress': 2, # enable ASLR
        'DataExecutionPrevention': 2, # enable DEP
        'AllowIsolation': 'true',
        'SuppressStartupBanner': 'true',
        'target_conditions': [
          ['_type=="executable"',
            {
              'SubSystem': 1, # console executable
            }
          ],
        ],
      },
    },
    'conditions': [
      ['OS == "win"',
        {
          'msvs_cygwin_shell': 0, # prevent actions from trying to use cygwin
          'defines': [
            'WIN32',
          # we don't really want VC++ warning us about
          # how dangerous C functions are...
            '_CRT_SECURE_NO_DEPRECATE',
          # ... or that C implementations shouldn't use
          # POSIX names
            '_CRT_NONSTDC_NO_DEPRECATE',
            'BUILDING_UV_SHARED=1',
          ],
        }
      ],
      [ 'OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"',
        {
          'cflags': [ '-Wall', '-pthread'],
          'cflags_cc': [ '-fno-rtti', '-fno-exceptions' ],
          'ldflags': [ '-pthread', '-Wl,-E' ],
          'defines': [ '_LARGEFILE_SOURCE', '_FILE_OFFSET_BITS=64', '_GNU_SOURCE' ],
          'conditions': [
            [ 'target_arch=="x64"',
              {
                'cflags': [ '-fPIC' ],
                'ldflags': [ '-fPIC' ],
              }
            ],
            [ 'target_arch=="ia32"',
              {
                'cflags': [ '-m32' ],
                'ldflags': [ '-m32' ],
              }
            ],
            [ 'OS=="linux"',
              {
                'libraries': [ '-lm', '-lrt' ],
              }
            ],
            [ 'OS=="freebsd"',
              {
                'ldflags': [ '-lm' ],
              }
            ],
            [ 'OS=="solaris"',
              {
                'defines': [ '__EXTENSIONS__' ],
                'ldflags!': [ '-Wl,-E' ], # solaris ld doesn't have --export-dynamic
                'libraries': [ '-lm' ],
              }
            ],
          ],
        }
      ],
      ['OS=="mac"',
        {
          'xcode_settings': {
            'ALWAYS_SEARCH_USER_PATHS': 'NO',
            'GCC_CW_ASM_SYNTAX': 'NO',                # No -fasm-blocks
            'GCC_DYNAMIC_NO_PIC': 'NO',               # No -mdynamic-no-pic
                                                    # (Equivalent to -fPIC)
            'GCC_ENABLE_CPP_EXCEPTIONS': 'NO',        # -fno-exceptions
            'GCC_ENABLE_CPP_RTTI': 'NO',              # -fno-rtti
            'GCC_ENABLE_PASCAL_STRINGS': 'NO',        # No -mpascal-strings
            'GCC_INLINES_ARE_PRIVATE_EXTERN': 'YES',
            'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',
            'GCC_THREADSAFE_STATICS': 'NO',           # -fno-threadsafe-statics
            'GCC_WARN_ABOUT_MISSING_NEWLINE': 'YES',  # -Wnewline-eof
            'MACOSX_DEPLOYMENT_TARGET': '10.6',       # -mmacosx-version-min=10.6
            'PREBINDING': 'NO',                       # No -Wl,-prebind
            'USE_HEADERMAP': 'NO',
            'OTHER_CFLAGS': [
              '-fno-strict-aliasing',
            ],
            'WARNING_CFLAGS': [
              '-Wall',
              '-Wendif-labels',
              '-W',
              '-Wno-unused-parameter',
            ],
          },
          'target_conditions': [
            ['_type!="static_library"',
              {
                'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']
                },
              }
            ],
          ],
        }
      ],
    ],
  }
}