[LTP] [PATCH V2 28/32] rt_sigaction.h: Use sighandler_t instead of __sighandler_t

[Cyril Hrubis]

Hi!
> When _GNU_SOURCE is used then both typedefs are same and using
> sighandler_t makes it work on musl too

Eh, what is the _GNU_SOURCE needed for?

Is there a difference between __sighandler_t and sighandler_t without
it?

-- 
Cyril Hrubis
chrubis@suse.cz