binding.gyp

{
  "targets": [
  {
    "target_name": "pixel_change",
    "sources": [
      "src/pixel_change.cc",
      "src/ccl.cc",
      "src/engine.cc",
      "src/object.cc",
      "src/results.cc",
      "src/callback.cc",
      "src/promise.cc"
    ],
    "cflags": [ "-O2", "-Wendif-labels", "-Werror", "-Wpedantic", "-Wunused-parameter" ],# removed for now "-finline-functions", "-funswitch-loops", "-fpredictive-commoning", "-fgcse-after-reload", "-ftree-vectorize", "-fvect-cost-model", "-ftree-partial-pre", "-fipa-cp-clone"
    "cflags!": [ "-Wno-unused-parameter", "-O3" ],
    "cflags_cc": [ "-std=gnu++11" ],
    "cflags_cc!": [ "-fno-exceptions", "-fno-rtti", "-std=gnu++1y", "-std=gnu++0x" ],
    "include_dirs": [ "<!@(node -p \"require('node-addon-api').include\")" ],
    "dependencies": [ "<!(node -p \"require('node-addon-api').gyp\")" ],
    "defines": [ "NAPI_CPP_EXCEPTIONS", "NODE_ADDON_API_DISABLE_DEPRECATED", "__NAPI_DEBUG", "GRAY=0xF0", "RED=0xFF", "GREEN=0xFF", "BLUE=0x00" ],
    "conditions": [
    ["OS==\"win\"", {
      "msvs_settings": {
        "VCCLCompilerTool": {
          "ExceptionHandling": 1
        }
      }
    }],
    ["OS==\"mac\"", {
      "cflags+": [ "-fvisibility=hidden" ],
      "xcode_settings": {
        "CLANG_CXX_LANGUAGE_STANDARD": "c++11",
        "CLANG_CXX_LIBRARY": "libc++",
        "GCC_ENABLE_CPP_EXCEPTIONS": "YES",
        "MACOSX_DEPLOYMENT_TARGET": "10.7",
        "GCC_ENABLE_CPP_RTTI" : "YES",
        # "fastest,smallest","fastest","faster","fast", "3", "2", "1", "0", "", "s"
        "GCC_OPTIMIZATION_LEVEL": "3",
        # only passed to C files
        "OTHER_CFLAGS": [ "-fvisibility=hidden" ],
        # remove defaults passed to C files
        "OTHER_CFLAGS!": [ "-fno-strict-aliasing" ],
        # only passed to C++ files
        "OTHER_CPLUSPLUSFLAGS": [],
        # remove defaults passed to C++ files
        "OTHER_CPLUSPLUSFLAGS!": [],
        # passed to both C/C++ files
        "WARNING_CFLAGS": [ "-Werror", "-Wextra", "-Wpedantic", "-Wunused-parameter" ],
        # remove defaults passed to both C/C++ files
        "WARNING_CFLAGS!": [ "-Wno-unused-parameter", "-W" ]
      }
    }]
    ]
  }
  ]
}
# several options for flags, cflags_cc(appends), cflags_cc+(prepends), cflags_cc!(negates)
# if -O3 and -O2 are both passed, whichever is passed last wins the race

# see https://github.com/nodejs/node/blob/master/common.gypi