Move build/ to build_gyp/.

This CL moves the build/ files to build_gyp/ in anticipation of pulling in
Chromiums build/ directory.

The gyp_pdfium files have been duplicated into both places. Once the bots
are updated we'll remove the build/ versions.

BUG=pdfium:106

Review URL: https://codereview.chromium.org/1900913003

5 files changed, 3 insertions, 678 deletions

diff --git a/build/all.gyp b/build/all.gyp
deleted file mode 100644
index 47097e39b4..0000000000
--- a/build/all.gyp
+++ /dev/null
@@ -1,17 +0,0 @@
-# Copyright 2014 PDFium 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': 'All',
-      'type': 'none',
-      'dependencies': [
-        '../pdfium.gyp:*',
-        '../samples/samples.gyp:*',
-        '../testing/libfuzzer/fuzzers.gyp:*',
-      ],
-    }
-  ]
-}
diff --git a/build/gyp_pdfium b/build/gyp_pdfium
index fca2ca39b6..3dbbbeea75 100755
--- a/build/gyp_pdfium
+++ b/build/gyp_pdfium
@@ -14,7 +14,7 @@ import sys
 script_dir = os.path.dirname(os.path.realpath(__file__))
 pdfium_root = os.path.abspath(os.path.join(script_dir, os.pardir))
 
-sys.path.insert(0, os.path.join(pdfium_root, 'build', 'gyp', 'pylib'))
+sys.path.insert(0, os.path.join(pdfium_root, 'build_gyp', 'gyp', 'pylib'))
 import gyp
 
 
@@ -27,10 +27,10 @@ def run_gyp(args):
 
 def main():
   args = sys.argv[1:]
-  args.append(os.path.join(script_dir, 'all.gyp'))
+  args.append(os.path.join(pdfium_root, 'build_gyp', 'all.gyp'))
 
   args.append('-I')
-  args.append(os.path.join(pdfium_root, 'build', 'standalone.gypi'))
+  args.append(os.path.join(pdfium_root, 'build_gyp', 'standalone.gypi'))
 
   args.extend(['-D', 'gyp_output_dir=out'])
 
diff --git a/build/mac_find_sdk.py b/build/mac_find_sdk.py
deleted file mode 100644
index 230c2fd52e..0000000000
--- a/build/mac_find_sdk.py
+++ /dev/null
@@ -1,93 +0,0 @@
-#!/usr/bin/env python
-# Copyright 2016 PDFium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Prints the lowest locally available SDK version greater than or equal to a
-given minimum sdk version to standard output.
-
-Usage:
-  python mac_find_sdk.py 10.6  # Ignores SDKs < 10.6
-"""
-
-import os
-import re
-import subprocess
-import sys
-
-
-from optparse import OptionParser
-
-
-def parse_version(version_str):
-  """'10.6' => [10, 6]"""
-  return map(int, re.findall(r'(\d+)', version_str))
-
-
-def main():
-  parser = OptionParser()
-  parser.add_option("--verify",
-                    action="store_true", dest="verify", default=False,
-                    help="return the sdk argument and warn if it doesn't exist")
-  parser.add_option("--sdk_path",
-                    action="store", type="string", dest="sdk_path", default="",
-                    help="user-specified SDK path; bypasses verification")
-  parser.add_option("--print_sdk_path",
-                    action="store_true", dest="print_sdk_path", default=False,
-                    help="Additionaly print the path the SDK (appears first).")
-  options, args = parser.parse_args()
-  if len(args) != 1:
-    parser.error('Please specify a minimum SDK version')
-  min_sdk_version = args[0]
-
-  job = subprocess.Popen(['xcode-select', '-print-path'],
-                         stdout=subprocess.PIPE,
-                         stderr=subprocess.STDOUT)
-  out, err = job.communicate()
-  if job.returncode != 0:
-    print >> sys.stderr, out
-    print >> sys.stderr, err
-    raise Exception(('Error %d running xcode-select, you might have to run '
-      '|sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer| '
-      'if you are using Xcode 4.') % job.returncode)
-  # The Developer folder moved in Xcode 4.3.
-  xcode43_sdk_path = os.path.join(
-      out.rstrip(), 'Platforms/MacOSX.platform/Developer/SDKs')
-  if os.path.isdir(xcode43_sdk_path):
-    sdk_dir = xcode43_sdk_path
-  else:
-    sdk_dir = os.path.join(out.rstrip(), 'SDKs')
-  sdks = [re.findall('^MacOSX(10\.\d+)\.sdk$', s) for s in os.listdir(sdk_dir)]
-  sdks = [s[0] for s in sdks if s]  # [['10.5'], ['10.6']] => ['10.5', '10.6']
-  sdks = [s for s in sdks  # ['10.5', '10.6'] => ['10.6']
-          if parse_version(s) >= parse_version(min_sdk_version)]
-  if not sdks:
-    raise Exception('No %s+ SDK found' % min_sdk_version)
-  best_sdk = sorted(sdks, key=parse_version)[0]
-
-  if options.verify and best_sdk != min_sdk_version and not options.sdk_path:
-    print >> sys.stderr, ''
-    print >> sys.stderr, '                                           vvvvvvv'
-    print >> sys.stderr, ''
-    print >> sys.stderr, \
-        'This build requires the %s SDK, but it was not found on your system.' \
-        % min_sdk_version
-    print >> sys.stderr, \
-        'Either install it, or explicitly set mac_sdk in your GYP_DEFINES.'
-    print >> sys.stderr, ''
-    print >> sys.stderr, '                                           ^^^^^^^'
-    print >> sys.stderr, ''
-    return min_sdk_version
-
-  if options.print_sdk_path:
-    print subprocess.check_output(['xcodebuild', '-version', '-sdk',
-                                   'macosx' + best_sdk, 'Path']).strip()
-
-  return best_sdk
-
-
-if __name__ == '__main__':
-  if sys.platform != 'darwin':
-    raise Exception("This script only runs on Mac")
-  print main()
-  sys.exit(0)
diff --git a/build/set_clang_warning_flags.gypi b/build/set_clang_warning_flags.gypi
deleted file mode 100644
index f6d7aea700..0000000000
--- a/build/set_clang_warning_flags.gypi
+++ /dev/null
@@ -1,58 +0,0 @@
-# Copyright (c) 2014 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.
-
-# This file is meant to be included to set clang-specific compiler flags.
-# To use this the following variable can be defined:
-#   clang_warning_flags:       list: Compiler flags to pass to clang.
-#   clang_warning_flags_unset: list: Compiler flags to not pass to clang.
-#
-# Only use this in third-party code. In chromium_code, fix your code to not
-# warn instead!
-#
-# Note that the gypi file is included in target_defaults, so it does not need
-# to be explicitly included.
-#
-# Warning flags set by this will be used on all platforms. If you want to set
-# warning flags on only some platforms, you have to do so manually.
-#
-# To use this, create a gyp target with the following form:
-# {
-#   'target_name': 'my_target',
-#   'variables': {
-#     'clang_warning_flags': ['-Wno-awesome-warning'],
-#     'clang_warning_flags_unset': ['-Wpreviously-set-flag'],
-#   }
-# }
-
-{
-  'variables': {
-    'clang_warning_flags_unset%': [],  # Provide a default value.
-  },
-  'conditions': [
-    ['clang==1', {
-      # This uses >@ instead of @< to also see clang_warning_flags set in
-      # targets directly, not just the clang_warning_flags in target_defaults.
-      'cflags': [ '>@(clang_warning_flags)' ],
-      'cflags!': [ '>@(clang_warning_flags_unset)' ],
-      'xcode_settings': {
-        'WARNING_CFLAGS': ['>@(clang_warning_flags)'],
-        'WARNING_CFLAGS!': ['>@(clang_warning_flags_unset)'],
-      },
-      'msvs_settings': {
-        'VCCLCompilerTool': {
-          'AdditionalOptions': [ '>@(clang_warning_flags)' ],
-          'AdditionalOptions!': [ '>@(clang_warning_flags_unset)' ],
-        },
-      },
-    }],
-    ['clang==0 and host_clang==1', {
-      'target_conditions': [
-        ['_toolset=="host"', {
-          'cflags': [ '>@(clang_warning_flags)' ],
-          'cflags!': [ '>@(clang_warning_flags_unset)' ],
-        }],
-      ],
-    }],
-  ],
-}
diff --git a/build/standalone.gypi b/build/standalone.gypi
deleted file mode 100644
index 925326b794..0000000000
--- a/build/standalone.gypi
+++ /dev/null
@@ -1,507 +0,0 @@
-# Copyright 2014 PDFium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Definitions to be used when building stand-alone PDFium binaries.
-
-{
-  'variables': {
-    'component%': 'static_library',
-    'clang%': 0,
-    'asan%': 0,
-    'sanitizer_coverage%': 0,
-    'use_goma%': 0,
-    'gomadir%': '',
-    'msvs_multi_core_compile%': '1',
-    'pdf_enable_xfa%': 1,
-    'variables': {
-      'variables': {
-        'variables': {
-          'conditions': [
-            ['OS=="linux" or OS=="mac"', {
-              # This handles the Unix platforms we generally deal with.
-              # Anything else gets passed through, which probably won't work
-              # very well; such hosts should pass an explicit target_arch
-              # to gyp.
-              'host_arch%':
-                '<!(uname -m | sed -e "s/i.86/ia32/;\
-                                       s/x86_64/x64/;\
-                                       s/amd64/x64/;\
-                                       s/arm.*/arm/;\
-                                       s/aarch64/arm64/;\
-                                       s/mips.*/mipsel/")',
-            }, {
-              # OS!="linux" and OS!="mac"
-              'host_arch%': 'ia32',
-            }],
-          ],
-        },
-        'host_arch%': '<(host_arch)',
-        'target_arch%': '<(host_arch)',
-      },
-      'host_arch%': '<(host_arch)',
-      'target_arch%': '<(target_arch)',
-    },
-    'clang_dir%': 'third_party/llvm-build/Release+Asserts',
-    # These two are needed by V8.
-    'host_arch%': '<(host_arch)',
-    'target_arch%': '<(target_arch)',
-    'werror%': '-Werror',
-    'v8_optimized_debug%': 0,
-    'v8_use_external_startup_data%': 0,
-    'icu_gyp_path': '../v8/third_party/icu/icu.gyp',
-    'libjpeg_gyp_path': '../third_party/third_party.gyp',
-    'conditions': [
-      ['OS == "win"', {
-        'os_posix%': 0,
-      }, {
-        'os_posix%': 1,
-      }],
-      ['OS=="linux" or OS=="mac"', {
-        'clang%': 1,
-        'host_clang%': 1,
-      }, {
-        'clang%': 0,
-        'host_clang%': 0,
-      }],
-      # Set default gomadir.
-      ['OS=="win"', {
-        'gomadir%': 'c:\\goma\\goma-win',
-      }, {
-        'gomadir%': '<!(/bin/echo -n ${HOME}/goma)',
-      }],
-    ],
-  },
-  'target_defaults': {
-    'default_configuration': 'Debug',
-    'configurations': {
-      'Debug': {
-        'cflags': [
-          '-g',
-          '-O0',
-          '-fdata-sections',
-          '-ffunction-sections',
-        ],
-        'defines': ['_DEBUG'],
-        'msvs_settings': {
-          'VCCLCompilerTool': {
-            'Optimization': '0',
-            'conditions': [
-              ['component=="shared_library"', {
-                'RuntimeLibrary': '3',  # /MDd
-              }, {
-                'RuntimeLibrary': '1',  # /MTd
-              }],
-            ],
-          },
-          'VCLinkerTool': {
-            'LinkIncremental': '2',
-          },
-        },
-        'xcode_settings': {
-          'GCC_OPTIMIZATION_LEVEL': '0',  # -O0
-        },
-        'conditions': [
-          ['OS=="linux"', {
-            # Enable libstdc++ debugging to help catch problems early.
-            'defines': ['_GLIBCXX_DEBUG=1',],
-          }],
-        ],
-      },
-      'Release': {
-        'cflags': [
-          '-fno-strict-aliasing',
-        ],
-        'defines': ['NDEBUG'],
-        'xcode_settings': {
-          'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
-          'GCC_STRICT_ALIASING': 'NO',
-        },
-        'msvs_settings': {
-          'VCCLCompilerTool': {
-            'Optimization': '2',
-            'InlineFunctionExpansion': '2',
-            'EnableIntrinsicFunctions': 'true',
-            'FavorSizeOrSpeed': '0',
-            'StringPooling': 'true',
-            'conditions': [
-              ['component=="shared_library"', {
-                'RuntimeLibrary': '2',  #/MD
-              }, {
-                'RuntimeLibrary': '0',  #/MT
-              }],
-            ],
-          },
-          'VCLinkerTool': {
-            'LinkIncremental': '1',
-            'OptimizeReferences': '2',
-            'EnableCOMDATFolding': '2',
-          },
-        },
-        'conditions': [
-          ['OS=="linux"', {
-            'cflags': [
-              '-fdata-sections',
-              '-ffunction-sections',
-              '-O3',
-              '-O2',
-            ],
-          }],
-          ['OS=="android"', {
-            'cflags!': [
-              '-O3',
-              '-Os',
-            ],
-            'cflags': [
-              '-fdata-sections',
-              '-ffunction-sections',
-              '-O2',
-            ],
-          }],
-        ],  # conditions
-      },
-      'Debug_x64': {
-        'inherit_from': ['Debug'],
-        'msvs_configuration_platform': 'x64',
-      },
-      'Release_x64': {
-        'inherit_from': ['Release'],
-        'msvs_configuration_platform': 'x64',
-      },
-    },
-    'cflags': [
-      '-Wall',
-      '-Werror',
-      '-W',
-      '-Wno-missing-field-initializers',
-      # Code might someday be made clean for -Wsign-compare, but for now
-      # this produces too much noise to be useful.
-      '-Wno-sign-compare',
-      '-Wno-unused-parameter',
-      '-pthread',
-      '-fno-exceptions',
-      '-fvisibility=hidden',
-    ],
-    'cflags_cc': [
-      '-std=c++11',
-      # Add back when ICU is clean
-      # '-Wnon-virtual-dtor',
-      '-fno-rtti',
-    ],
-    'ldflags': [
-      '-pthread',
-    ],
-    'defines': [
-      # Don't use deprecated V8 APIs anywhere.
-      'V8_DEPRECATION_WARNINGS',
-    ],
-    'msvs_cygwin_dirs': ['<(DEPTH)/v8/third_party/cygwin'],
-    'msvs_configuration_attributes': {
-      'OutputDirectory': '<(DEPTH)\\build\\$(ConfigurationName)',
-      'IntermediateDirectory': '$(OutDir)\\obj\\$(ProjectName)',
-      'CharacterSet': '1',
-    },
-    'msvs_disabled_warnings': [
-      # ####
-      # This section is PDFium specific.
-      # ####
-
-      # C4800: forcing value to bool 'true' or 'false' (performance warning)
-      4800,
-
-      # ####
-      # This section should match Chromium's build/common.gypi.
-      # ####
-
-      # C4091: 'typedef ': ignored on left of 'X' when no variable is
-      #                    declared.
-      # This happens in a number of Windows headers. Dumb.
-      4091,
-
-      # C4127: conditional expression is constant
-      # This warning can in theory catch dead code and other problems, but
-      # triggers in far too many desirable cases where the conditional
-      # expression is either set by macros or corresponds some legitimate
-      # compile-time constant expression (due to constant template args,
-      # conditionals comparing the sizes of different types, etc.).  Some of
-      # these can be worked around, but it's not worth it.
-      4127,
-
-      # C4351: new behavior: elements of array 'array' will be default
-      #        initialized
-      # This is a silly "warning" that basically just alerts you that the
-      # compiler is going to actually follow the language spec like it's
-      # supposed to, instead of not following it like old buggy versions
-      # did.  There's absolutely no reason to turn this on.
-      4351,
-
-      # C4355: 'this': used in base member initializer list
-      # It's commonly useful to pass |this| to objects in a class'
-      # initializer list.  While this warning can catch real bugs, most of
-      # the time the constructors in question don't attempt to call methods
-      # on the passed-in pointer (until later), and annotating every legit
-      # usage of this is simply more hassle than the warning is worth.
-      4355,
-
-      # C4503: 'identifier': decorated name length exceeded, name was
-      #        truncated
-      # This only means that some long error messages might have truncated
-      # identifiers in the presence of lots of templates.  It has no effect
-      # on program correctness and there's no real reason to waste time
-      # trying to prevent it.
-      4503,
-
-      # Warning C4589 says: "Constructor of abstract class ignores
-      # initializer for virtual base class." Disable this warning because it
-      # is flaky in VS 2015 RTM. It triggers on compiler generated
-      # copy-constructors in some cases.
-      4589,
-
-      # C4611: interaction between 'function' and C++ object destruction is
-      #        non-portable
-      # This warning is unavoidable when using e.g. setjmp/longjmp.  MSDN
-      # suggests using exceptions instead of setjmp/longjmp for C++, but
-      # Chromium code compiles without exception support.  We therefore have
-      # to use setjmp/longjmp for e.g. JPEG decode error handling, which
-      # means we have to turn off this warning (and be careful about how
-      # object destruction happens in such cases).
-      4611,
-
-      # TODO(thestig): These warnings are level 4. They will be slowly
-      # removed as code is fixed.
-      4100, # Unreferenced formal parameter
-      4121, # Alignment of a member was sensitive to packing
-      4244, # Conversion from 'type1' to 'type2', possible loss of data
-      4505, # Unreferenced local function has been removed
-      4510, # Default constructor could not be generated
-      4512, # Assignment operator could not be generated
-      4610, # Object can never be instantiated
-      4838, # Narrowing conversion. Doesn't seem to be very useful.
-      4995, # 'X': name was marked as #pragma deprecated
-      4996, # 'X': was declared deprecated (for GetVersionEx).
-
-      # These are variable shadowing warnings that are new in VS2015. We
-      # should work through these at some point -- they may be removed from
-      # the RTM release in the /W4 set.
-      4456, 4457, 4458, 4459,
-
-      # TODO(brucedawson): http://crbug.com/554200 4312 is a VS
-      # 2015 64-bit warning for integer to larger pointer
-      4312,
-
-      # ####
-      # Do not add PDFium specific entries here. Add them to the top.
-      # ####
-    ],
-    'msvs_settings': {
-      'VCCLCompilerTool': {
-        'MinimalRebuild': 'false',
-        'BufferSecurityCheck': 'true',
-        'EnableFunctionLevelLinking': 'true',
-        'RuntimeTypeInfo': 'false',
-        'WarningLevel': '3',
-        'DebugInformationFormat': '3',
-        'Detect64BitPortabilityProblems': 'false',
-        'conditions': [
-          [ 'msvs_multi_core_compile', {
-            'AdditionalOptions': ['/MP'],
-          }],
-          ['component=="shared_library"', {
-            'ExceptionHandling': '1',  # /EHsc
-          }, {
-            'ExceptionHandling': '0',
-          }],
-          ['target_arch=="x64"', {
-            # 64-bit warnings need to be resolved.
-            # https://code.google.com/p/pdfium/issues/detail?id=101
-            'WarnAsError': 'false',
-          }, {
-            'WarnAsError': 'true',
-          }],
-          ['clang==1', {
-            'AdditionalOptions': [
-              # Don't warn about unused function parameters.
-              # (This is also used on other platforms.)
-              '-Wno-unused-parameter',
-              # Don't warn about the "struct foo f = {0};" initialization
-              # pattern.
-              '-Wno-missing-field-initializers',
-
-              # Many files use intrinsics without including this header.
-              # TODO(hans): Fix those files, or move this to sub-GYPs.
-              '/FIIntrin.h',
-
-              # TODO(hans): Make this list shorter eventually, http://crbug.com/504657
-              '-Qunused-arguments',  # http://crbug.com/504658
-              '-Wno-microsoft-enum-value',  # http://crbug.com/505296
-              '-Wno-unknown-pragmas',  # http://crbug.com/505314
-              '-Wno-microsoft-cast',  # http://crbug.com/550065
-            ],
-          }],
-          ['OS=="win" and clang==1 and MSVS_VERSION == "2013"', {
-            'VCCLCompilerTool': {
-              'AdditionalOptions': [
-                '-fmsc-version=1800',
-              ],
-            },
-          }],
-          ['OS=="win" and clang==1 and MSVS_VERSION == "2015"', {
-            'VCCLCompilerTool': {
-              'AdditionalOptions': [
-                '-fmsc-version=1900',
-              ],
-            },
-          }],
-        ],
-      },
-      'VCLibrarianTool': {
-        'AdditionalOptions': ['/ignore:4221'],
-      },
-      'VCLinkerTool': {
-        'GenerateDebugInformation': 'true',
-        'LinkIncremental': '1',
-        # SubSystem values:
-        #   0 == not set
-        #   1 == /SUBSYSTEM:CONSOLE
-        #   2 == /SUBSYSTEM:WINDOWS
-        'SubSystem': '1',
-      },
-    },
-    'xcode_settings': {
-      'ALWAYS_SEARCH_USER_PATHS': 'NO',
-      'CLANG_CXX_LANGUAGE_STANDARD': 'c++11',
-      '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 maps to -fvisibility-inlines-hidden
-      'GCC_INLINES_ARE_PRIVATE_EXTERN': 'YES',
-      'GCC_SYMBOLS_PRIVATE_EXTERN': 'YES',      # -fvisibility=hidden
-      'GCC_TREAT_WARNINGS_AS_ERRORS': 'NO',     # -Werror
-      'GCC_WARN_NON_VIRTUAL_DESTRUCTOR': 'YES', # -Wnon-virtual-dtor
-      'SYMROOT': '<(DEPTH)/xcodebuild',
-      'USE_HEADERMAP': 'NO',
-      'OTHER_CFLAGS': [
-        '-fno-strict-aliasing',
-      ],
-      'WARNING_CFLAGS': [
-        '-Wall',
-        '-Wendif-labels',
-        '-W',
-        '-Wno-unused-parameter',
-      ],
-    },
-    'variables': {
-      'clang_warning_flags': [],
-    },
-    'includes': [ 'set_clang_warning_flags.gypi', ],
-    'conditions': [
-      ['component=="shared_library"', {
-        'cflags': [
-          '-fPIC',
-        ],
-      }],
-      ['asan==1', {
-        'defines': [
-          'ADDRESS_SANITIZER',
-          'LEAK_SANITIZER',
-        ],
-        'cflags': [
-          '-fsanitize=address',
-          '-gline-tables-only',
-        ],
-        'ldflags': [
-          '-fsanitize=address',
-        ],
-      }],
-      ['sanitizer_coverage!=0', {
-        'cflags': [
-          '-fsanitize-coverage=<(sanitizer_coverage)',
-        ],
-      }],
-      ['OS=="win"', {
-        'defines': [
-          'NOMINMAX',
-          '_CRT_SECURE_NO_DEPRECATE',
-          '_CRT_NONSTDC_NO_DEPRECATE',
-        ],
-        'conditions': [
-          ['component=="static_library"', {
-            'defines': [
-              '_HAS_EXCEPTIONS=0',
-            ],
-          }],
-          ['use_goma==1', {
-            # goma doesn't support PDB yet.
-            'msvs_settings': {
-              'VCLinkerTool': {
-                'GenerateDebugInformation': 'true',
-              },
-              'VCCLCompilerTool': {
-                'DebugInformationFormat': '1',
-              },
-            },
-          }],
-        ],
-      }],  # OS=="win"
-      ['OS=="mac"', {
-        'target_conditions': [
-          ['_type!="static_library"', {
-            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
-          }],
-        ],  # target_conditions
-        'variables': {
-          'mac_sdk_min': '10.10',
-          'mac_sdk%': '<!(python <(DEPTH)/build/mac_find_sdk.py <(mac_sdk_min))',
-        },
-        'xcode_settings': {
-          'SDKROOT': 'macosx<(mac_sdk)',  # -isysroot
-          # See comment in Chromium's common.gypi for why this is needed.
-          'SYMROOT': '<(DEPTH)/xcodebuild',
-        },
-      }],  # OS=="mac"
-      ['v8_use_external_startup_data==1', {
-        'defines': [
-          'V8_USE_EXTERNAL_STARTUP_DATA',
-        ],
-      }],  # v8_use_external_startup_data==1
-      ['clang==1 or host_clang==1', {
-        # This is here so that all files get recompiled after a clang roll and
-        # when turning clang on or off.
-        # (defines are passed via the command line, and build systems rebuild
-        # things when their commandline changes). Nothing should ever read this
-        # define.
-        'defines': ['CR_CLANG_REVISION=<!(python <(DEPTH)/tools/clang/scripts/update.py --print-revision)'],
-      }],
-    ],
-  },
-  'conditions': [
-    ['OS=="linux" or OS=="mac"', {
-      'conditions': [
-        ['clang==1', {
-          'make_global_settings': [
-            ['CC', '<(clang_dir)/bin/clang'],
-            ['CXX', '<(clang_dir)/bin/clang++'],
-          ],
-        }],
-      ],
-    }],  # OS=="linux" or OS=="mac"
-    ['OS=="win"', {
-      'conditions': [
-        ['clang==1', {
-          'make_global_settings': [
-            ['CC', '<(clang_dir)/bin/clang-cl'],
-          ],
-        }],
-      ],
-    }],  # OS=="win"
-    ["use_goma==1", {
-      'make_global_settings': [
-        ['CC_wrapper', '<(gomadir)/gomacc'],
-        ['CXX_wrapper', '<(gomadir)/gomacc'],
-      ],
-    }],  # use_goma==1
-  ],
-}