text: #! /usr/bin/env python
  # encoding: utf-8
  # WARNING! Do not edit! https://waf.io/book/index.html#_obtaining_the_waf_file
  
  from waflib.Tools import ccroot, ar
  from waflib.Configure import conf
  
  
  @conf
  def find_gxx(conf):
      cxx = conf.find_program(['g++', 'c++'], var='CXX')
      conf.get_cc_version(cxx, gcc=True)
      conf.env.CXX_NAME = 'gcc'
  
  
  @conf
  def gxx_common_flags(conf):
      v = conf.env
      v.CXX_SRC_F = []
      v.CXX_TGT_F = ['-c', '-o']
      if not v.LINK_CXX:
          v.LINK_CXX = v.CXX
      v.CXXLNK_SRC_F = []
      v.CXXLNK_TGT_F = ['-o']
      v.CPPPATH_ST = '-I%s'
      v.DEFINES_ST = '-D%s'
      v.LIB_ST = '-l%s'
      v.LIBPATH_ST = '-L%s'
      v.STLIB_ST = '-l%s'
      v.STLIBPATH_ST = '-L%s'
      v.RPATH_ST = '-Wl,-rpath,%s'
      v.SONAME_ST = '-Wl,-h,%s'
      v.SHLIB_MARKER = '-Wl,-Bdynamic'
      v.STLIB_MARKER = '-Wl,-Bstatic'
      v.cxxprogram_PATTERN = '%s'
      v.CXXFLAGS_cxxshlib = ['-fPIC']
      v.LINKFLAGS_cxxshlib = ['-shared']
      v.cxxshlib_PATTERN = 'lib%s.so'
      v.LINKFLAGS_cxxstlib = ['-Wl,-Bstatic']
      v.cxxstlib_PATTERN = 'lib%s.a'
      v.LINKFLAGS_MACBUNDLE = ['-bundle', '-undefined', 'dynamic_lookup']
      v.CXXFLAGS_MACBUNDLE = ['-fPIC']
      v.macbundle_PATTERN = '%s.bundle'
  
  
  @conf
  def gxx_modifier_win32(conf):
      v = conf.env
      v.cxxprogram_PATTERN = '%s.exe'
      v.cxxshlib_PATTERN = '%s.dll'
      v.implib_PATTERN = '%s.dll.a'
      v.IMPLIB_ST = '-Wl,--out-implib,%s'
      v.CXXFLAGS_cxxshlib = []
      v.append_value('LINKFLAGS', ['-Wl,--enable-auto-import'])
  
  
  @conf
  def gxx_modifier_cygwin(conf):
      gxx_modifier_win32(conf)
      v = conf.env
      v.cxxshlib_PATTERN = 'cyg%s.dll'
      v.append_value('LINKFLAGS_cxxshlib', ['-Wl,--enable-auto-image-base'])
      v.CXXFLAGS_cxxshlib = []
  
  
  @conf
  def gxx_modifier_darwin(conf):
      v = conf.env
      v.CXXFLAGS_cxxshlib = ['-fPIC']
      v.LINKFLAGS_cxxshlib = ['-dynamiclib']
      v.cxxshlib_PATTERN = 'lib%s.dylib'
      v.FRAMEWORKPATH_ST = '-F%s'
      v.FRAMEWORK_ST = ['-framework']
      v.ARCH_ST = ['-arch']
      v.LINKFLAGS_cxxstlib = []
      v.SHLIB_MARKER = []
      v.STLIB_MARKER = []
      v.SONAME_ST = []
  
  
  @conf
  def gxx_modifier_aix(conf):
      v = conf.env
      v.LINKFLAGS_cxxprogram = ['-Wl,-brtl']
      v.LINKFLAGS_cxxshlib = ['-shared', '-Wl,-brtl,-bexpfull']
      v.SHLIB_MARKER = []
  
  
  @conf
  def gxx_modifier_hpux(conf):
      v = conf.env
      v.SHLIB_MARKER = []
      v.STLIB_MARKER = []
      v.CFLAGS_cxxshlib = ['-fPIC', '-DPIC']
      v.cxxshlib_PATTERN = 'lib%s.sl'
  
  
  @conf
  def gxx_modifier_openbsd(conf):
      conf.env.SONAME_ST = []
  
  
  @conf
  def gcc_modifier_osf1V(conf):
      v = conf.env
      v.SHLIB_MARKER = []
      v.STLIB_MARKER = []
      v.SONAME_ST = []
  
  
  @conf
  def gxx_modifier_platform(conf):
      gxx_modifier_func = getattr(conf, 'gxx_modifier_' + conf.env.DEST_OS, None)
      if gxx_modifier_func:
          gxx_modifier_func()
  
  
  def configure(conf):
      conf.find_gxx()
      conf.find_ar()
      conf.gxx_common_flags()
      conf.gxx_modifier_platform()
      conf.cxx_load_tools()
      conf.cxx_add_flags()
      conf.link_add_flags()
      conf.check_gcc_o_space('cxx')
  