[build] Remove deprecated build files

build/toolchain.gypi

-# Copyright 2013 the V8 project authors. All rights reserved.
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-#       copyright notice, this list of conditions and the following
-#       disclaimer in the documentation and/or other materials provided
-#       with the distribution.
-#     * Neither the name of Google Inc. nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# Shared definitions for all V8-related targets.
-
-{
-  'variables': {
-    'msvs_use_common_release': 0,
-    'clang%': 0,
-    'asan%': 0,
-    'lsan%': 0,
-    'msan%': 0,
-    'tsan%': 0,
-    'ubsan%': 0,
-    'ubsan_vptr%': 0,
-    'v8_target_arch%': '<(target_arch)',
-    'v8_host_byteorder%': '<!(python -c "import sys; print sys.byteorder")',
-    # Native Client builds currently use the V8 ARM JIT and
-    # arm/simulator-arm.cc to defer the significant effort required
-    # for NaCl JIT support. The nacl_target_arch variable provides
-    # the 'true' target arch for places in this file that need it.
-    # TODO(bradchen): get rid of nacl_target_arch when someday
-    # NaCl V8 builds stop using the ARM simulator
-    'nacl_target_arch%': 'none',     # must be set externally
-
-    # Setting 'v8_can_use_vfp32dregs' to 'true' will cause V8 to use the VFP
-    # registers d16-d31 in the generated code, both in the snapshot and for the
-    # ARM target. Leaving the default value of 'false' will avoid the use of
-    # these registers in the snapshot and use CPU feature probing when running
-    # on the target.
-    'v8_can_use_vfp32dregs%': 'false',
-    'arm_test_noprobe%': 'off',
-
-    # Similar to vfp but on MIPS.
-    'v8_can_use_fpu_instructions%': 'true',
-
-    # Similar to the ARM hard float ABI but on MIPS.
-    'v8_use_mips_abi_hardfloat%': 'true',
-
-    # Force disable libstdc++ debug mode.
-    'disable_glibcxx_debug%': 0,
-
-    'v8_enable_backtrace%': 0,
-
-    # Enable profiling support. Only required on Windows.
-    'v8_enable_prof%': 0,
-
-    # Some versions of GCC 4.5 seem to need -fno-strict-aliasing.
-    'v8_no_strict_aliasing%': 0,
-
-    # Chrome needs this definition unconditionally. For standalone V8 builds,
-    # it's handled in build/standalone.gypi.
-    'want_separate_host_toolset%': 1,
-
-    # Toolset the d8 binary should be compiled for. Possible values are 'host'
-    # and 'target'. If you want to run v8 tests, it needs to be set to 'target'.
-    # The setting is ignored if want_separate_host_toolset is 0.
-    'v8_toolset_for_d8%': 'target',
-
-    'host_os%': '<(OS)',
-    'werror%': '-Werror',
-    # For a shared library build, results in "libv8-<(soname_version).so".
-    'soname_version%': '',
-
-    # Allow to suppress the array bounds warning (default is no suppression).
-    'wno_array_bounds%': '',
-
-    # Override where to find binutils
-    'binutils_dir%': '',
-
-    'conditions': [
-      ['OS=="linux" and host_arch=="x64"', {
-        'binutils_dir%': 'third_party/binutils/Linux_x64/Release/bin',
-      }],
-      ['OS=="linux" and host_arch=="ia32"', {
-        'binutils_dir%': 'third_party/binutils/Linux_ia32/Release/bin',
-      }],
-
-      # linux_use_bundled_gold: whether to use the gold linker binary checked
-      # into third_party/binutils.  Force this off via GYP_DEFINES when you
-      # are using a custom toolchain and need to control -B in ldflags.
-      # Do not use 32-bit gold on 32-bit hosts as it runs out address space
-      # for component=static_library builds.
-      ['OS=="linux" and (target_arch=="x64" or target_arch=="arm")', {
-        'linux_use_bundled_gold%': 1,
-      }, {
-        'linux_use_bundled_gold%': 0,
-      }],
-      # linux_use_bundled_binutils: whether to use the binary binutils
-      # checked into third_party/binutils.  These are not multi-arch so cannot
-      # be used except on x86 and x86-64 (the only two architectures which
-      # are currently checke in).  Force this off via GYP_DEFINES when you
-      # are using a custom toolchain and need to control -B in cflags.
-      ['OS=="linux" and (target_arch=="ia32" or target_arch=="x64")', {
-        'linux_use_bundled_binutils%': 1,
-      }, {
-        'linux_use_bundled_binutils%': 0,
-      }],
-      # linux_use_gold_flags: whether to use build flags that rely on gold.
-      # On by default for x64 Linux.
-      ['OS=="linux" and target_arch=="x64"', {
-        'linux_use_gold_flags%': 1,
-      }, {
-        'linux_use_gold_flags%': 0,
-      }],
-    ],
-
-    # Link-Time Optimizations
-    'use_lto%': 0,
-  },
-  'conditions': [
-    ['host_arch=="ia32" or host_arch=="x64" or \
-      host_arch=="ppc" or host_arch=="ppc64" or \
-      host_arch=="s390" or host_arch=="s390x" or \
-      clang==1', {
-      'variables': {
-        'host_cxx_is_biarch%': 1,
-       },
-     }, {
-      'variables': {
-        'host_cxx_is_biarch%': 0,
-      },
-    }],
-    ['target_arch=="ia32" or target_arch=="x64" or target_arch=="x87" or \
-      target_arch=="ppc" or target_arch=="ppc64" or target_arch=="s390" or \
-      target_arch=="s390x" or clang==1', {
-      'variables': {
-        'target_cxx_is_biarch%': 1,
-       },
-     }, {
-      'variables': {
-        'target_cxx_is_biarch%': 0,
-      },
-    }],
-  ],
-  'target_defaults': {
-    'conditions': [
-      ['v8_target_arch=="arm"', {
-        'defines': [
-          'V8_TARGET_ARCH_ARM',
-        ],
-        'conditions': [
-          [ 'arm_version==7 or arm_version=="default"', {
-            'defines': [
-              'CAN_USE_ARMV7_INSTRUCTIONS',
-            ],
-          }],
-          [ 'arm_fpu=="vfpv3-d16" or arm_fpu=="default"', {
-            'defines': [
-              'CAN_USE_VFP3_INSTRUCTIONS',
-            ],
-          }],
-          [ 'arm_fpu=="vfpv3"', {
-            'defines': [
-              'CAN_USE_VFP3_INSTRUCTIONS',
-              'CAN_USE_VFP32DREGS',
-            ],
-          }],
-          [ 'arm_fpu=="neon"', {
-            'defines': [
-              'CAN_USE_VFP3_INSTRUCTIONS',
-              'CAN_USE_VFP32DREGS',
-              'CAN_USE_NEON',
-            ],
-          }],
-          [ 'arm_test_noprobe=="on"', {
-            'defines': [
-              'ARM_TEST_NO_FEATURE_PROBE',
-            ],
-          }],
-        ],
-        'target_conditions': [
-          ['_toolset=="host"', {
-            'conditions': [
-              ['v8_target_arch==host_arch', {
-                # Host built with an Arm CXX compiler.
-                'conditions': [
-                  [ 'arm_version==7', {
-                    'cflags': ['-march=armv7-a',],
-                  }],
-                  [ 'arm_version==7 or arm_version=="default"', {
-                    'conditions': [
-                      [ 'arm_fpu!="default"', {
-                        'cflags': ['-mfpu=<(arm_fpu)',],
-                      }],
-                    ],
-                  }],
-                  [ 'arm_float_abi!="default"', {
-                    'cflags': ['-mfloat-abi=<(arm_float_abi)',],
-                  }],
-                  [ 'arm_thumb==1', {
-                    'cflags': ['-mthumb',],
-                  }],
-                  [ 'arm_thumb==0', {
-                    'cflags': ['-marm',],
-                  }],
-                ],
-              }, {
-                # 'v8_target_arch!=host_arch'
-                # Host not built with an Arm CXX compiler (simulator build).
-                'conditions': [
-                  [ 'arm_float_abi=="hard"', {
-                    'defines': [
-                      'USE_EABI_HARDFLOAT=1',
-                    ],
-                  }],
-                  [ 'arm_float_abi=="softfp" or arm_float_abi=="default"', {
-                    'defines': [
-                      'USE_EABI_HARDFLOAT=0',
-                    ],
-                  }],
-                ],
-              }],
-            ],
-          }],  # _toolset=="host"
-          ['_toolset=="target"', {
-            'conditions': [
-              ['v8_target_arch==target_arch', {
-                # Target built with an Arm CXX compiler.
-                'conditions': [
-                  [ 'arm_version==7', {
-                    'cflags': ['-march=armv7-a',],
-                  }],
-                  [ 'arm_version==7 or arm_version=="default"', {
-                    'conditions': [
-                      [ 'arm_fpu!="default"', {
-                        'cflags': ['-mfpu=<(arm_fpu)',],
-                      }],
-                    ],
-                  }],
-                  [ 'arm_float_abi!="default"', {
-                    'cflags': ['-mfloat-abi=<(arm_float_abi)',],
-                  }],
-                  [ 'arm_thumb==1', {
-                    'cflags': ['-mthumb',],
-                  }],
-                  [ 'arm_thumb==0', {
-                    'cflags': ['-marm',],
-                  }],
-                ],
-              }, {
-                # 'v8_target_arch!=target_arch'
-                # Target not built with an Arm CXX compiler (simulator build).
-                'conditions': [
-                  [ 'arm_float_abi=="hard"', {
-                    'defines': [
-                      'USE_EABI_HARDFLOAT=1',
-                    ],
-                  }],
-                  [ 'arm_float_abi=="softfp" or arm_float_abi=="default"', {
-                    'defines': [
-                      'USE_EABI_HARDFLOAT=0',
-                    ],
-                  }],
-                ],
-              }],
-              # Disable GCC LTO for v8
-              # v8 is optimized for speed. Because GCC LTO merges flags at link
-              # time, we disable LTO to prevent any -O2 flags from taking
-              # precedence over v8's -Os flag. However, LLVM LTO does not work
-              # this way so we keep LTO enabled under LLVM.
-              ['clang==0 and use_lto==1', {
-                'cflags!': [
-                  '-flto',
-                  '-ffat-lto-objects',
-                ],
-              }],
-            ],
-          }],  # _toolset=="target"
-        ],
-      }],  # v8_target_arch=="arm"
-      ['v8_target_arch=="arm64"', {
-        'defines': [
-          'V8_TARGET_ARCH_ARM64',
-        ],
-      }],
-      ['v8_target_arch=="s390" or v8_target_arch=="s390x"', {
-        'defines': [
-          'V8_TARGET_ARCH_S390',
-        ],
-        'conditions': [
-          ['v8_target_arch=="s390x"', {
-            'defines': [
-              'V8_TARGET_ARCH_S390X',
-            ],
-          }],
-          ['v8_host_byteorder=="little"', {
-            'defines': [
-              'V8_TARGET_ARCH_S390_LE_SIM',
-            ],
-          }],
-          ],
-      }],  # s390
-      ['v8_target_arch=="ppc" or v8_target_arch=="ppc64"', {
-        'defines': [
-          'V8_TARGET_ARCH_PPC',
-        ],
-        'conditions': [
-          ['v8_target_arch=="ppc64"', {
-            'defines': [
-              'V8_TARGET_ARCH_PPC64',
-            ],
-          }],
-          ['v8_host_byteorder=="little"', {
-            'defines': [
-              'V8_TARGET_ARCH_PPC_LE',
-            ],
-          }],
-          ['v8_host_byteorder=="big"', {
-            'defines': [
-              'V8_TARGET_ARCH_PPC_BE',
-            ],
-            'conditions': [
-              ['OS=="aix"', {
-                # Work around AIX ceil, trunc and round oddities.
-                'cflags': [ '-mcpu=power5+ -mfprnd' ],
-              }],
-              ['OS=="aix"', {
-                # Work around AIX assembler popcntb bug.
-                'cflags': [ '-mno-popcntb' ],
-              }],
-            ],
-          }],
-        ],
-      }],  # ppc
-      ['v8_target_arch=="ia32"', {
-        'defines': [
-          'V8_TARGET_ARCH_IA32',
-        ],
-      }],  # v8_target_arch=="ia32"
-      ['v8_target_arch=="x87"', {
-        'defines': [
-          'V8_TARGET_ARCH_X87',
-        ],
-        'cflags': ['-march=i586'],
-      }],  # v8_target_arch=="x87"
-      ['(v8_target_arch=="mips" or v8_target_arch=="mipsel" \
-        or v8_target_arch=="mips64" or v8_target_arch=="mips64el") \
-         and v8_target_arch==target_arch', {
-        'target_conditions': [
-          ['_toolset=="target"', {
-            # Target built with a Mips CXX compiler.
-            'variables': {
-              'ldso_path%': '<!(/bin/echo -n $LDSO_PATH)',
-              'ld_r_path%': '<!(/bin/echo -n $LD_R_PATH)',
-            },
-            'conditions': [
-              ['ldso_path!=""', {
-                'ldflags': ['-Wl,--dynamic-linker=<(ldso_path)'],
-              }],
-              ['ld_r_path!=""', {
-                'ldflags': ['-Wl,--rpath=<(ld_r_path)'],
-              }],
-              [ 'clang==1', {
-                'cflags': ['-integrated-as'],
-              }],
-            ],
-          }],
-        ],
-      }],
-      ['v8_target_arch=="mips"', {
-        'defines': [
-          'V8_TARGET_ARCH_MIPS',
-        ],
-        'conditions': [
-          [ 'v8_can_use_fpu_instructions=="true"', {
-            'defines': [
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }],
-          [ 'v8_use_mips_abi_hardfloat=="true"', {
-            'defines': [
-              '__mips_hard_float=1',
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }, {
-            'defines': [
-              '__mips_soft_float=1'
-            ]
-          }],
-        ],
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'conditions': [
-              ['v8_target_arch==target_arch', {
-                # Target built with a Mips CXX compiler.
-                'cflags': [
-                  '-EB',
-                  '-Wno-error=array-bounds',  # Workaround https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
-                ],
-                'ldflags': ['-EB'],
-                'conditions': [
-                  [ 'v8_use_mips_abi_hardfloat=="true"', {
-                    'cflags': ['-mhard-float'],
-                    'ldflags': ['-mhard-float'],
-                  }, {
-                    'cflags': ['-msoft-float'],
-                    'ldflags': ['-msoft-float'],
-                  }],
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                    'cflags!': ['-mfp32', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r6'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r6'],
-                    'ldflags': ['-mips32r6'],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                        'cflags': ['-mfp64'],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                        'cflags': ['-mfpxx'],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                        'cflags': ['-mfp32'],
-                      }],
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r2'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r2'],
-                    'ldflags': ['-mips32r2'],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'defines': [
-                      'FPU_MODE_FP32',
-                    ],
-                    'cflags!': ['-mfp64', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32'],
-                    'ldflags': ['-mips32'],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                    'cflags!': ['-mfp64', '-mfp32'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32', '-mfpxx'],
-                    'ldflags': ['-mips32'],
-                  }],
-                ],
-              }, {
-                # 'v8_target_arch!=target_arch'
-                # Target not built with an MIPS CXX compiler (simulator build).
-                'conditions': [
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                      }],
-                    ],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'defines': [
-                      'FPU_MODE_FP32',
-                    ],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                ],
-              }],
-            ],
-          }],  #_toolset=="target"
-          ['_toolset=="host"', {
-            'conditions': [
-              ['mips_arch_variant=="rx"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32RX',
-                  'FPU_MODE_FPXX',
-                ],
-              }],
-              ['mips_arch_variant=="r6"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32R6',
-                  'FPU_MODE_FP64',
-                ],
-              }],
-              ['mips_arch_variant=="r2"', {
-                'conditions': [
-                  ['mips_fpu_mode=="fp64"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fpxx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fp32"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP32'
-                    ],
-                  }],
-                ],
-              }],
-              ['mips_arch_variant=="r1"', {
-                'defines': ['FPU_MODE_FP32',],
-              }],
-            ]
-          }],  #_toolset=="host"
-        ],
-      }],  # v8_target_arch=="mips"
-      ['v8_target_arch=="mipsel"', {
-        'defines': [
-          'V8_TARGET_ARCH_MIPS',
-        ],
-        'conditions': [
-          [ 'v8_can_use_fpu_instructions=="true"', {
-            'defines': [
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }],
-          [ 'v8_use_mips_abi_hardfloat=="true"', {
-            'defines': [
-              '__mips_hard_float=1',
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }, {
-            'defines': [
-              '__mips_soft_float=1'
-            ],
-          }],
-        ],
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'conditions': [
-              ['v8_target_arch==target_arch', {
-                # Target built with a Mips CXX compiler.
-                'cflags': [
-                  '-EL',
-                  '-Wno-error=array-bounds',  # Workaround https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
-                ],
-                'ldflags': ['-EL'],
-                'conditions': [
-                  [ 'v8_use_mips_abi_hardfloat=="true"', {
-                    'cflags': ['-mhard-float'],
-                    'ldflags': ['-mhard-float'],
-                  }, {
-                    'cflags': ['-msoft-float'],
-                    'ldflags': ['-msoft-float'],
-                  }],
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                    'cflags!': ['-mfp32', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r6'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r6'],
-                    'ldflags': ['-mips32r6'],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                        'cflags': ['-mfp64'],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                        'cflags': ['-mfpxx'],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                        'cflags': ['-mfp32'],
-                      }],
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r2'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r2'],
-                    'ldflags': ['-mips32r2'],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'cflags!': ['-mfp64', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32'],
-                    'ldflags': ['-mips32'],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                    'cflags!': ['-mfp64', '-mfp32'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32', '-mfpxx'],
-                    'ldflags': ['-mips32'],
-                  }],
-                  ['mips_arch_variant=="loongson"', {
-                    'defines': [
-                      '_MIPS_ARCH_LOONGSON',
-                      'FPU_MODE_FP32',
-                    ],
-                    'cflags!': ['-mfp64', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips3'],
-                      }],
-                    ],
-                    'cflags': ['-mips3', '-mfp32'],
-                  }],
-                ],
-              }, {
-                # 'v8_target_arch!=target_arch'
-                # Target not built with an MIPS CXX compiler (simulator build).
-                'conditions': [
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                      }],
-                    ],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'defines': [
-                      'FPU_MODE_FP32',
-                    ],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                  ['mips_arch_variant=="loongson"', {
-                    'defines': [
-                      '_MIPS_ARCH_LOONGSON',
-                      'FPU_MODE_FP32',
-                    ],
-                  }],
-                ],
-              }],
-            ],
-          }], #_toolset=="target
-          ['_toolset=="host"', {
-            'conditions': [
-              ['mips_arch_variant=="rx"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32RX',
-                  'FPU_MODE_FPXX',
-                ],
-              }],
-              ['mips_arch_variant=="r6"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32R6',
-                  'FPU_MODE_FP64',
-                ],
-              }],
-              ['mips_arch_variant=="r2"', {
-                'conditions': [
-                  ['mips_fpu_mode=="fp64"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fpxx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fp32"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP32'
-                    ],
-                  }],
-                ],
-              }],
-              ['mips_arch_variant=="r1"', {
-                'defines': ['FPU_MODE_FP32',],
-              }],
-              ['mips_arch_variant=="loongson"', {
-                'defines': [
-                  '_MIPS_ARCH_LOONGSON',
-                  'FPU_MODE_FP32',
-                ],
-              }],
-            ]
-          }],
-        ],
-      }],  # v8_target_arch=="mipsel"
-      ['v8_target_arch=="mips64el" or v8_target_arch=="mips64"', {
-        'defines': [
-          'V8_TARGET_ARCH_MIPS64',
-        ],
-        'conditions': [
-          [ 'v8_can_use_fpu_instructions=="true"', {
-            'defines': [
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }],
-          [ 'v8_host_byteorder=="little"', {
-            'defines': [
-              'V8_TARGET_ARCH_MIPS64_LE',
-            ],
-          }],
-          [ 'v8_host_byteorder=="big"', {
-            'defines': [
-              'V8_TARGET_ARCH_MIPS64_BE',
-            ],
-          }],
-          [ 'v8_use_mips_abi_hardfloat=="true"', {
-            'defines': [
-              '__mips_hard_float=1',
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }, {
-            'defines': [
-              '__mips_soft_float=1'
-            ],
-          }],
-         ],
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'conditions': [
-              ['v8_target_arch==target_arch', {
-                'cflags': [
-                  '-Wno-error=array-bounds',  # Workaround https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
-                ],
-                'conditions': [
-                  ['v8_target_arch=="mips64el"', {
-                    'cflags': ['-EL'],
-                    'ldflags': ['-EL'],
-                  }],
-                  ['v8_target_arch=="mips64"', {
-                    'cflags': ['-EB'],
-                    'ldflags': ['-EB'],
-                  }],
-                  [ 'v8_use_mips_abi_hardfloat=="true"', {
-                    'cflags': ['-mhard-float'],
-                    'ldflags': ['-mhard-float'],
-                  }, {
-                    'cflags': ['-msoft-float'],
-                    'ldflags': ['-msoft-float'],
-                  }],
-                  ['mips_arch_variant=="r6"', {
-                    'defines': ['_MIPS_ARCH_MIPS64R6',],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips64r6'],
-                      }],
-                    ],
-                    'cflags': ['-mips64r6', '-mabi=64'],
-                    'ldflags': ['-mips64r6', '-mabi=64'],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'defines': ['_MIPS_ARCH_MIPS64R2',],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips64r2'],
-                      }],
-                    ],
-                    'cflags': ['-mips64r2', '-mabi=64'],
-                    'ldflags': ['-mips64r2', '-mabi=64'],
-                  }],
-                ],
-              }, {
-                # 'v8_target_arch!=target_arch'
-                # Target not built with an MIPS CXX compiler (simulator build).
-                'conditions': [
-                  ['mips_arch_variant=="r6"', {
-                    'defines': ['_MIPS_ARCH_MIPS64R6',],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'defines': ['_MIPS_ARCH_MIPS64R2',],
-                  }],
-                ],
-              }],
-            ],
-          }],  #'_toolset=="target"
-          ['_toolset=="host"', {
-            'conditions': [
-              ['mips_arch_variant=="r6"', {
-                'defines': ['_MIPS_ARCH_MIPS64R6',],
-              }],
-              ['mips_arch_variant=="r2"', {
-                'defines': ['_MIPS_ARCH_MIPS64R2',],
-              }],
-            ],
-          }],  #'_toolset=="host"
-        ],
-      }],  # v8_target_arch=="mips64el"
-      ['v8_target_arch=="x64"', {
-        'defines': [
-          'V8_TARGET_ARCH_X64',
-        ],
-        'xcode_settings': {
-          'ARCHS': [ 'x86_64' ],
-        },
-        'msvs_settings': {
-          'VCLinkerTool': {
-            'StackReserveSize': '2097152',
-          },
-        },
-        'msvs_configuration_platform': 'x64',
-      }],  # v8_target_arch=="x64"
-      ['v8_target_arch=="x32"', {
-        'defines': [
-          # x32 port shares the source code with x64 port.
-          'V8_TARGET_ARCH_X64',
-          'V8_TARGET_ARCH_32_BIT',
-        ],
-        'cflags': [
-          '-mx32',
-          # Inhibit warning if long long type is used.
-          '-Wno-long-long',
-        ],
-        'ldflags': [
-          '-mx32',
-        ],
-      }],  # v8_target_arch=="x32"
-      ['linux_use_gold_flags==1', {
-        # Newer gccs and clangs support -fuse-ld, use the flag to force gold
-        # selection.
-        # gcc -- http://gcc.gnu.org/onlinedocs/gcc-4.8.0/gcc/Optimize-Options.html
-        'ldflags': [ '-fuse-ld=gold', ],
-      }],
-      ['linux_use_bundled_binutils==1', {
-        'cflags': [
-          '-B<!(cd <(DEPTH) && pwd -P)/<(binutils_dir)',
-        ],
-      }],
-      ['linux_use_bundled_gold==1', {
-        # Put our binutils, which contains gold in the search path. We pass
-        # the path to gold to the compiler. gyp leaves unspecified what the
-        # cwd is when running the compiler, so the normal gyp path-munging
-        # fails us. This hack gets the right path.
-        'ldflags': [
-          '-B<!(cd <(DEPTH) && pwd -P)/<(binutils_dir)',
-        ],
-      }],
-      ['OS=="win"', {
-        'defines': [
-          'WIN32',
-        ],
-        # 4351: VS 2005 and later are warning us that they've fixed a bug
-        #       present in VS 2003 and earlier.
-        'msvs_disabled_warnings': [4351],
-        'msvs_configuration_attributes': {
-          'OutputDirectory': '<(DEPTH)\\build\\$(ConfigurationName)',
-          'IntermediateDirectory': '$(OutDir)\\obj\\$(ProjectName)',
-          'CharacterSet': '1',
-        },
-      }],
-      ['OS=="win" and v8_target_arch=="ia32"', {
-        'msvs_settings': {
-          'VCCLCompilerTool': {
-            # Ensure no surprising artifacts from 80bit double math with x86.
-            'AdditionalOptions': ['/arch:SSE2'],
-          },
-        },
-      }],
-      ['OS=="win" and v8_enable_prof==1', {
-        'msvs_settings': {
-          'VCLinkerTool': {
-            'GenerateMapFile': 'true',
-          },
-        },
-      }],
-      ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \
-         or OS=="netbsd" or OS=="mac" or OS=="android" or OS=="qnx") and \
-        v8_target_arch=="ia32"', {
-        'cflags': [
-          '-msse2',
-          '-mfpmath=sse',
-          '-mmmx',  # Allows mmintrin.h for MMX intrinsics.
-        ],
-      }],
-      ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \
-         or OS=="netbsd" or OS=="mac" or OS=="android" or OS=="qnx") and \
-        (v8_target_arch=="arm" or v8_target_arch=="ia32" or \
-         v8_target_arch=="x87" or v8_target_arch=="mips" or \
-         v8_target_arch=="mipsel" or v8_target_arch=="ppc" or \
-         v8_target_arch=="s390")', {
-        'target_conditions': [
-          ['_toolset=="host"', {
-            'conditions': [
-              ['host_cxx_is_biarch==1', {
-                'conditions': [
-                  ['host_arch=="s390" or host_arch=="s390x"', {
-                    'cflags': [ '-m31' ],
-                    'ldflags': [ '-m31' ]
-                  },{
-                   'cflags': [ '-m32' ],
-                   'ldflags': [ '-m32' ]
-                  }],
-                ],
-              }],
-            ],
-            'xcode_settings': {
-              'ARCHS': [ 'i386' ],
-            },
-          }],
-          ['_toolset=="target"', {
-            'conditions': [
-              ['target_cxx_is_biarch==1 and nacl_target_arch!="nacl_x64"', {
-                'conditions': [
-                  ['host_arch=="s390" or host_arch=="s390x"', {
-                    'cflags': [ '-m31' ],
-                    'ldflags': [ '-m31' ]
-                  },{
-                   'cflags': [ '-m32' ],
-                   'ldflags': [ '-m32' ],
-                  }],
-                ],
-              }],
-            ],
-            'xcode_settings': {
-              'ARCHS': [ 'i386' ],
-            },
-          }],
-        ],
-      }],
-      ['(OS=="linux" or OS=="android") and \
-        (v8_target_arch=="x64" or v8_target_arch=="arm64" or \
-         v8_target_arch=="ppc64" or v8_target_arch=="s390x")', {
-        'target_conditions': [
-          ['_toolset=="host"', {
-            'conditions': [
-              ['host_cxx_is_biarch==1', {
-                'cflags': [ '-m64' ],
-                'ldflags': [ '-m64' ]
-              }],
-             ],
-           }],
-           ['_toolset=="target"', {
-             'conditions': [
-               ['target_cxx_is_biarch==1', {
-                 'cflags': [ '-m64' ],
-                 'ldflags': [ '-m64' ],
-               }],
-             ]
-           }],
-         ],
-      }],
-      ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \
-         or OS=="netbsd" or OS=="qnx" or OS=="aix"', {
-        'conditions': [
-          [ 'v8_no_strict_aliasing==1', {
-            'cflags': [ '-fno-strict-aliasing' ],
-          }],
-        ],  # conditions
-      }],
-      ['OS=="solaris"', {
-        'defines': [ '__C99FEATURES__=1' ],  # isinf() etc.
-      }],
-      ['OS=="freebsd" or OS=="openbsd"', {
-        'cflags': [ '-I/usr/local/include' ],
-      }],
-      ['OS=="netbsd"', {
-        'cflags': [ '-I/usr/pkg/include' ],
-      }],
-      ['OS=="aix"', {
-        'defines': [
-          # Support for malloc(0)
-          '_LINUX_SOURCE_COMPAT=1',
-          '_ALL_SOURCE=1'],
-        'conditions': [
-          [ 'v8_target_arch=="ppc"', {
-            'ldflags': [ '-Wl,-bmaxdata:0x60000000/dsa' ],
-          }],
-          [ 'v8_target_arch=="ppc64"', {
-            'cflags': [ '-maix64' ],
-            'ldflags': [ '-maix64' ],
-          }],
-        ],
-      }],
-    ],  # conditions
-    'configurations': {
-      # Abstract configuration for v8_optimized_debug == 0.
-      'DebugBase0': {
-        'abstract': 1,
-        'msvs_settings': {
-          'VCCLCompilerTool': {
-            'Optimization': '0',
-            'conditions': [
-              ['component=="shared_library"', {
-                'RuntimeLibrary': '3',  # /MDd
-              }, {
-                'RuntimeLibrary': '1',  # /MTd
-              }],
-            ],
-          },
-          'VCLinkerTool': {
-            'LinkIncremental': '2',
-          },
-        },
-        'variables': {
-          'v8_enable_slow_dchecks%': 1,
-        },
-        'conditions': [
-          ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" or \
-            OS=="qnx" or OS=="aix"', {
-            'cflags!': [
-              '-O3',
-              '-O2',
-              '-O1',
-              '-Os',
-            ],
-            'cflags': [
-              '-fdata-sections',
-              '-ffunction-sections',
-            ],
-          }],
-          ['OS=="mac"', {
-            'xcode_settings': {
-               'GCC_OPTIMIZATION_LEVEL': '0',  # -O0
-            },
-          }],
-          ['v8_enable_slow_dchecks==1', {
-            'defines': [
-              'ENABLE_SLOW_DCHECKS',
-            ],
-          }],
-        ],
-      },  # DebugBase0
-      # Abstract configuration for v8_optimized_debug == 1.
-      'DebugBase1': {
-        'abstract': 1,
-        'msvs_settings': {
-          'VCCLCompilerTool': {
-            'Optimization': '2',
-            'InlineFunctionExpansion': '2',
-            'EnableIntrinsicFunctions': 'true',
-            'FavorSizeOrSpeed': '0',
-            'StringPooling': 'true',
-            'BasicRuntimeChecks': '0',
-            'conditions': [
-              ['component=="shared_library"', {
-                'RuntimeLibrary': '3',  #/MDd
-              }, {
-                'RuntimeLibrary': '1',  #/MTd
-              }],
-            ],
-          },
-          'VCLinkerTool': {
-            'LinkIncremental': '1',
-            'OptimizeReferences': '2',
-            'EnableCOMDATFolding': '2',
-          },
-        },
-        'variables': {
-          'v8_enable_slow_dchecks%': 0,
-        },
-        'conditions': [
-          ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" or \
-            OS=="qnx" or OS=="aix"', {
-            'cflags!': [
-              '-O0',
-              '-O1',
-              '-Os',
-            ],
-            'cflags': [
-              '-fdata-sections',
-              '-ffunction-sections',
-            ],
-            'conditions': [
-              # TODO(crbug.com/272548): Avoid -O3 in NaCl
-              # Don't use -O3 with sanitizers.
-              ['nacl_target_arch=="none" and asan==0 and msan==0 and lsan==0 \
-                and tsan==0 and ubsan==0 and ubsan_vptr==0', {
-                'cflags': ['-O3'],
-                'cflags!': ['-O2'],
-                }, {
-                'cflags': ['-O2'],
-                'cflags!': ['-O3'],
-              }],
-            ],
-          }],
-          ['OS=="mac"', {
-            'xcode_settings': {
-              'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
-              'GCC_STRICT_ALIASING': 'YES',
-            },
-          }],
-          ['v8_enable_slow_dchecks==1', {
-            'defines': [
-              'ENABLE_SLOW_DCHECKS',
-            ],
-          }],
-        ],
-      },  # DebugBase1
-      # Common settings for the Debug configuration.
-      'DebugBaseCommon': {
-        'abstract': 1,
-        'defines': [
-          'ENABLE_DISASSEMBLER',
-          'V8_ENABLE_CHECKS',
-          'OBJECT_PRINT',
-          'VERIFY_HEAP',
-          'DEBUG',
-          'TRACE_MAPS'
-        ],
-        'conditions': [
-          ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" or \
-            OS=="qnx" or OS=="aix"', {
-            'cflags': [ '-Woverloaded-virtual', '<(wno_array_bounds)', ],
-          }],
-          ['OS=="linux" and v8_enable_backtrace==1', {
-            # Support for backtrace_symbols.
-            'ldflags': [ '-rdynamic' ],
-          }],
-          ['OS=="linux" and disable_glibcxx_debug==0', {
-            # Enable libstdc++ debugging facilities to help catch problems
-            # early, see http://crbug.com/65151 .
-            'defines': ['_GLIBCXX_DEBUG=1',],
-          }],
-          ['OS=="aix"', {
-            'ldflags': [ '-Wl,-bbigtoc' ],
-            'conditions': [
-              ['v8_target_arch=="ppc64"', {
-                'cflags': [ '-maix64 -mcmodel=large' ],
-              }],
-            ],
-          }],
-          ['OS=="android"', {
-            'variables': {
-              'android_full_debug%': 1,
-            },
-            'conditions': [
-              ['android_full_debug==0', {
-                # Disable full debug if we want a faster v8 in a debug build.
-                # TODO(2304): pass DISABLE_DEBUG_ASSERT instead of hiding DEBUG.
-                'defines!': [
-                  'DEBUG',
-                  'ENABLE_SLOW_DCHECKS',
-                ],
-              }],
-            ],
-          }],
-          # TODO(pcc): Re-enable in LTO builds once we've fixed the intermittent
-          # link failures (crbug.com/513074).
-          ['linux_use_gold_flags==1 and use_lto==0', {
-            'target_conditions': [
-              ['_toolset=="target"', {
-                'ldflags': [
-                  # Experimentation found that using four linking threads
-                  # saved ~20% of link time.
-                  # https://groups.google.com/a/chromium.org/group/chromium-dev/browse_thread/thread/281527606915bb36
-                  # Only apply this to the target linker, since the host
-                  # linker might not be gold, but isn't used much anyway.
-                  '-Wl,--threads',
-                  '-Wl,--thread-count=4',
-                ],
-              }],
-            ],
-          }],
-        ],
-      },  # DebugBaseCommon
-      'Debug': {
-        'inherit_from': ['DebugBaseCommon'],
-        'conditions': [
-          ['v8_optimized_debug==0', {
-            'inherit_from': ['DebugBase0'],
-          }, {
-            'inherit_from': ['DebugBase1'],
-          }],
-        ],
-      },  # Debug
-      'ReleaseBase': {
-        'abstract': 1,
-        'variables': {
-          'v8_enable_slow_dchecks%': 0,
-        },
-        'conditions': [
-          ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" \
-            or OS=="aix"', {
-            'cflags!': [
-              '-Os',
-            ],
-            'cflags': [
-              '-fdata-sections',
-              '-ffunction-sections',
-              '<(wno_array_bounds)',
-            ],
-            'conditions': [
-              # TODO(crbug.com/272548): Avoid -O3 in NaCl
-              # Don't use -O3 with sanitizers.
-              ['nacl_target_arch=="none" and asan==0 and msan==0 and lsan==0 \
-                and tsan==0 and ubsan==0 and ubsan_vptr==0', {
-                'cflags': ['-O3'],
-                'cflags!': ['-O2'],
-              }, {
-                'cflags': ['-O2'],
-                'cflags!': ['-O3'],
-              }],
-            ],
-          }],
-          ['OS=="android"', {
-            'cflags!': [
-              '-O3',
-              '-Os',
-            ],
-            'cflags': [
-              '-fdata-sections',
-              '-ffunction-sections',
-              '-O2',
-            ],
-          }],
-          ['OS=="mac"', {
-            'xcode_settings': {
-              'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
-
-              # -fstrict-aliasing.  Mainline gcc
-              # enables this at -O2 and above,
-              # but Apple gcc does not unless it
-              # is specified explicitly.
-              'GCC_STRICT_ALIASING': 'YES',
-            },
-          }],  # OS=="mac"
-          ['OS=="win"', {
-            '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',
-              },
-            },
-          }],  # OS=="win"
-          ['v8_enable_slow_dchecks==1', {
-            'defines': [
-              'ENABLE_SLOW_DCHECKS',
-            ],
-          }],
-        ],  # conditions
-      },  # Release
-      'Release': {
-        'inherit_from': ['ReleaseBase'],
-      },  # Debug
-      'conditions': [
-        [ 'OS=="win"', {
-          # TODO(bradnelson): add a gyp mechanism to make this more graceful.
-          'Debug_x64': {
-            'inherit_from': ['DebugBaseCommon'],
-            'conditions': [
-              ['v8_optimized_debug==0', {
-                'inherit_from': ['DebugBase0'],
-              }, {
-                'inherit_from': ['DebugBase1'],
-              }],
-            ],
-          },
-          'Release_x64': {
-            'inherit_from': ['ReleaseBase'],
-          },
-        }],
-      ],
-    },  # configurations
-  },  # target_defaults
-}