fyodor 0df6272cf9 Signal handling fixes: fixed nbase configure to actually set HAVE_SIGNAL ...

properly so our signal handing code actually activates.  But our signal
handling code was a bit questionable in many respects, so I removed most
of it under the theory that it hasn't been working for years and nobody
seemed to notice/care, so we presumably don't really need it.  And if we
do decide to add it again, we basically will need to do it over because
we now want to do it safely from a reentrancy perspective.  In particular,
I removed sigdie() and reaper().  We still have a few signal() calls.  In
particular, we ignore SIGPIPE and we set SIGINT, SIGTERM, SIGHUP, and
SIGSEGV to the defaults (SIG_DFL) explicitly.  Thanks to Ithilgore, Luis,
and Solar Designer in particular for fidning or commenting on the issue.

2009-08-13 21:54:55 +00:00

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