binding.gyp

{
  "targets":[
     {
        "target_name":"ecdh",
        "include_dirs":[
           "<!(node -e \"require('nan')\")"
        ],
        "cflags":[
           "-Wall",
           "-O2"
        ],
        "sources":[
           "ecdh.cpp"
        ],
        "conditions":[
           [
              "OS=='win'",
              {
                 "conditions":[
                    [
                       "target_arch=='x64'",
                       {
                          "variables":{
                             "openssl_root%":"C:/OpenSSL-Win64"
                          }
                       },
                       {
                          "variables":{
                             "openssl_root%":"C:/OpenSSL-Win32"
                          }
                       }
                    ]
                 ],
                 "libraries":[
                    "-l<(openssl_root)/lib/libeay32.lib"
                 ],
                 "include_dirs":[
                    "<(openssl_root)/include"
                 ]
              },
              {
                 "conditions":[
                    [
                       "target_arch=='ia32'",
                       {
                          "variables":{
                             "openssl_config_path":"<(nodedir)/deps/openssl/config/piii"
                          }
                       }
                    ],
                    [
                       "target_arch=='x64'",
                       {
                          "variables":{
                             "openssl_config_path":"<(nodedir)/deps/openssl/config/k8"
                          }
                       }
                    ],
                    [
                       "target_arch=='arm'",
                       {
                          "variables":{
                             "openssl_config_path":"<(nodedir)/deps/openssl/config/arm"
                          }
                       }
                    ]
                 ],
                 "include_dirs":[
                    "<(nodedir)/deps/openssl/openssl/include",
                    "<(openssl_config_path)"
                 ]
              }
           ]
        ]
     }
  ]
}