From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: lekktu@gmail.com, 12446@debbugs.gnu.org
Subject: bug#12446: port better to POSIX hosts lacking _setjmp
Date: Fri, 14 Sep 2012 14:28:23 -0700 [thread overview]
Message-ID: <5053A177.1020608@cs.ucla.edu> (raw)
In-Reply-To: <83txv0tkho.fsf@gnu.org>
On 09/14/2012 01:30 PM, Eli Zaretskii wrote:
> Why not simply switch to using
> ANSI- and Posix-standard setjmp/longjmp?
Because longjmp might alter the signal mask,
and it might not. POSIX doesn't say either way,
platforms differ in this respect, and the
differences can mess things up and slow things down.
This is why Emacs uses _longjmp now, on GNU and
POSIXish platforms.
next prev parent reply other threads:[~2012-09-14 21:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-14 19:44 bug#12446: port better to POSIX hosts lacking _setjmp Paul Eggert
2012-09-14 20:30 ` Eli Zaretskii
2012-09-14 21:28 ` Paul Eggert [this message]
2012-09-15 7:10 ` Paul Eggert
2012-09-15 8:08 ` Eli Zaretskii
2012-09-15 8:46 ` Paul Eggert
2012-09-15 9:41 ` Eli Zaretskii
2012-09-15 10:06 ` Paul Eggert
2012-09-15 7:12 ` Eli Zaretskii
2012-09-15 7:50 ` Paul Eggert
2012-09-15 8:28 ` Eli Zaretskii
2012-09-15 8:55 ` Paul Eggert
2012-09-15 9:44 ` Eli Zaretskii
2012-09-15 10:00 ` Paul Eggert
2012-09-15 10:27 ` Eli Zaretskii
2012-09-15 20:26 ` Paul Eggert
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