@conf
def fc_add_flags(conf):
    """
	Adds FCFLAGS / LDFLAGS / LINKFLAGS from os.environ to conf.env
	"""
    conf.add_os_flags('FCPPFLAGS', dup=False)
    conf.add_os_flags('FCFLAGS', dup=False)
    conf.add_os_flags('LINKFLAGS', dup=False)
    conf.add_os_flags('LDFLAGS', dup=False)
