https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=b568f92c505aaa923160eca93935995dd6b88b16
commit b568f92c505aaa923160eca93935995dd6b88b16 Author: Jon Turney <jon.tur...@dronecode.org.uk> Date: Mon Mar 27 15:19:36 2017 +0100 declaration of ppoll() by poll.h should be guarded by _GNU_SOURCE Signed-off-by: Jon Turney <jon.tur...@dronecode.org.uk> Diff: --- winsup/cygwin/include/sys/poll.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/winsup/cygwin/include/sys/poll.h b/winsup/cygwin/include/sys/poll.h index 8228278..0da4c3f 100644 --- a/winsup/cygwin/include/sys/poll.h +++ b/winsup/cygwin/include/sys/poll.h @@ -39,9 +39,11 @@ struct pollfd { typedef unsigned int nfds_t; extern int poll __P ((struct pollfd *fds, nfds_t nfds, int timeout)); +#if __GNU_VISIBLE extern int ppoll __P ((struct pollfd *fds, nfds_t nfds, const struct timespec *timeout_ts, const sigset_t *sigmask)); +#endif __END_DECLS