old_contents: {
    'targets': [
      {
        'target_name': 'diskusage',
        'include_dirs': [ '<!(node -e "require(\'nan\')")' ],
        'sources': [
          'src/main.cpp',
          'src/diskusage.h',
        ],
        'cflags' : [
          '-std=c++11'
        ],
        'conditions': [
          ['OS=="win"', {
            'sources': [
              'src/diskusage_win.cpp',
            ],
            'defines': [
              'UNICODE',
              'WIN32_LEAN_AND_MEAN',
              'NOMINMAX'
            ],
            'msvs_settings': {
              'VCCLCompilerTool': {
                'ExceptionHandling': '1'
              }
            }
          }],
          ['OS not in ["win"]', {
            'sources': [
              'src/diskusage_posix.cpp',
            ],
            'cflags!': [ '-fno-exceptions' ],
            'cflags_cc!': [ '-fno-exceptions' ]
          }],
          ['OS=="mac"', {
            'xcode_settings': {
              'GCC_ENABLE_CPP_EXCEPTIONS': 'YES'
            }
          }]
        ]
      }
    ]
  }
  
new_contents: {
    'targets': [
      {
        'target_name': 'diskusage',
        'include_dirs': [ '<!(node -e "require(\'nan\')")' ],
        'sources': [
          'src/main.cpp',
          'src/diskusage.h',
        ],
        'cflags' : [
          '-std=c++11',
          '-D_GLIBCXX_USE_CXX11_ABI=0'
        ],
        'conditions': [
          ['OS=="win"', {
            'sources': [
              'src/diskusage_win.cpp',
            ],
            'defines': [
              'UNICODE',
              'WIN32_LEAN_AND_MEAN',
              'NOMINMAX'
            ],
            'msvs_settings': {
              'VCCLCompilerTool': {
                'ExceptionHandling': '1'
              }
            }
          }],
          ['OS not in ["win"]', {
            'sources': [
              'src/diskusage_posix.cpp',
            ],
            'cflags!': [ '-fno-exceptions' ],
            'cflags_cc!': [ '-fno-exceptions' ]
          }],
          ['OS=="mac"', {
            'xcode_settings': {
              'GCC_ENABLE_CPP_EXCEPTIONS': 'YES'
            }
          }]
        ]
      }
    ]
  }
  
subject: Remove dependency on GLIBCXX_3.4.21 (#20)