parameters: (self, var, dest=None)
docstring: Import operating system environment values into ``conf.env`` dict::
  
  		def configure(conf):
  			conf.add_os_flags('CFLAGS')
  
  	:param var: variable to use
  	:type var: string
  	:param dest: destination variable, by default the same as var
  	:type dest: string
docstring_summary: Import operating system environment values into ``conf.env`` dict::
docstring_tokens: Import operating system environment values into conf . env dict ::
function: def add_os_flags(self, var, dest=None):
  	"""
  	Import operating system environment values into ``conf.env`` dict::
  
  		def configure(conf):
  			conf.add_os_flags('CFLAGS')
  
  	:param var: variable to use
  	:type var: string
  	:param dest: destination variable, by default the same as var
  	:type dest: string
  	"""
  	# do not use 'get' to make certain the variable is not defined
  	try: self.env.append_value(dest or var, shlex.split(self.environ[var]))
  	except KeyError: pass
function_tokens: def add_os_flags ( self , var , dest = None ) : # do not use 'get' to make certain the variable is not defined try : self . env . append_value ( dest or var , shlex . split ( self . environ [ var ] ) ) except KeyError : pass