def METHOD_NAME(self):
	"""
	Change the values of *cshlib_PATTERN* and *cxxshlib_PATTERN* to remove the
	*lib* prefix from library names.
	"""
	self.uselib = self.to_list(getattr(self, 'uselib', []))
	if not 'PERLEXT' in self.uselib:
		self.uselib.append('PERLEXT')
	self.env.cshlib_PATTERN = self.env.cxxshlib_PATTERN = self.env.perlext_PATTERN