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ef03aa432a
A future change will start using sigaction to setup a SIGCHLD signal handler. The current code uses signal(), which returns SIG_ERR (but doesn't seem to set errno) so instruct sigaction() to do the same. A new SA flag will be needed, so copy the one from Cygwin; note that the sigaction() implementation that is provided won't use it, so its value is otherwise irrelevant. Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>