text: #! /usr/bin/env python
  # encoding: utf-8
  # WARNING! Do not edit! http://waf.googlecode.com/git/docs/wafbook/single.html#_obtaining_the_waf_file
  
  import os
  from waflib import Utils,Options,Context
  _options=[x.split(', ')for x in'''
  bindir, user executables, ${EXEC_PREFIX}/bin
  sbindir, system admin executables, ${EXEC_PREFIX}/sbin
  libexecdir, program executables, ${EXEC_PREFIX}/libexec
  sysconfdir, read-only single-machine data, ${PREFIX}/etc
  sharedstatedir, modifiable architecture-independent data, ${PREFIX}/com
  localstatedir, modifiable single-machine data, ${PREFIX}/var
  libdir, object code libraries, ${EXEC_PREFIX}/lib
  includedir, C header files, ${PREFIX}/include
  oldincludedir, C header files for non-gcc, /usr/include
  datarootdir, read-only arch.-independent data root, ${PREFIX}/share
  datadir, read-only architecture-independent data, ${DATAROOTDIR}
  infodir, info documentation, ${DATAROOTDIR}/info
  localedir, locale-dependent data, ${DATAROOTDIR}/locale
  mandir, man documentation, ${DATAROOTDIR}/man
  docdir, documentation root, ${DATAROOTDIR}/doc/${PACKAGE}
  htmldir, html documentation, ${DOCDIR}
  dvidir, dvi documentation, ${DOCDIR}
  pdfdir, pdf documentation, ${DOCDIR}
  psdir, ps documentation, ${DOCDIR}
  '''.split('\n')if x]
  def configure(conf):
  	def get_param(varname,default):
  		return getattr(Options.options,varname,'')or default
  	env=conf.env
  	env.LIBDIR=env.BINDIR=[]
  	env.EXEC_PREFIX=get_param('EXEC_PREFIX',env.PREFIX)
  	env.PACKAGE=getattr(Context.g_module,'APPNAME',None)or env.PACKAGE
  	complete=False
  	iter=0
  	while not complete and iter<len(_options)+1:
  		iter+=1
  		complete=True
  		for name,help,default in _options:
  			name=name.upper()
  			if not env[name]:
  				try:
  					env[name]=Utils.subst_vars(get_param(name,default).replace('/',os.sep),env)
  				except TypeError:
  					complete=False
  	if not complete:
  		lst=[name for name,_,_ in _options if not env[name.upper()]]
  		raise conf.errors.WafError('Variable substitution failure %r'%lst)
  def options(opt):
  	inst_dir=opt.add_option_group('Installation directories','By default, "waf install" will put the files in\
   "/usr/local/bin", "/usr/local/lib" etc. An installation prefix other\
   than "/usr/local" can be given using "--prefix", for example "--prefix=$HOME"')
  	for k in('--prefix','--destdir'):
  		option=opt.parser.get_option(k)
  		if option:
  			opt.parser.remove_option(k)
  			inst_dir.add_option(option)
  	inst_dir.add_option('--exec-prefix',help='installation prefix [Default: ${PREFIX}]',default='',dest='EXEC_PREFIX')
  	dirs_options=opt.add_option_group('Pre-defined installation directories','')
  	for name,help,default in _options:
  		option_name='--'+name
  		str_default=default
  		str_help='%s [Default: %s]'%(help,str_default)
  		dirs_options.add_option(option_name,help=str_help,default='',dest=name.upper())
  