Re: How to deal with GPL paper when the contributer can not contact with?

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

  > 2.  his patchs are rewrite ivy.el and swiper.el's exist functions,
  > so many code of his patch come from ivy.el and swiper.el, ivy.el
  > and swiper.el are gnu-elpa packages.

  > How should I do?  wait or elimit his commit?

How many of those lines contain code he wrote?
There is no need to count the code that he left unchanged.

If what he wrote is short, and not crucial, then you can ignore
the copyright issue for that.

Or you can rewrite the code some other way.  It sounds like that
won't be a lot of work.

-- 
Dr Richard Stallman
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)