'Link flags for the libraries
>>> l = LibraryList([\'/dir1/liba.a\', \'/dir2/libb.a\', \'/dir1/liba.so\'])
>>> l.link_flags
\'-la -lb\'
Returns:
str: A joined list of link flags'

@property
def link_flags(self):

    return '    '.join([('-l' + name) for name in self.names])
