tree aa4367f565765f4e8b155e19b320fac6b68eaa40
parent a39f20bf9f8e59573a479bff23df345b2b4d2345
author Bobby Bingham <koorogi@koorogi.info> 1510359343 -0600
committer Rich Felker <dalias@aerifal.cx> 1510360077 -0500

prevent fork's errno from being clobbered by atfork handlers

If the syscall fails, errno must be set correctly for the caller.
There's no guarantee that the handlers registered with pthread_atfork
won't clobber errno, so we need to ensure it gets set after they are
called.