Thank you. I may very well do that.
Carol
On Thu, Mar 4, 2021 at 4:57 AM Daniel P. Berrangé <berrange(a)redhat.com>
wrote:
On Wed, Mar 03, 2021 at 03:13:29PM -0500, Carol Bouchard wrote:
> In our code base (restraint), we patch and recompile the m4 code base.
>
https://github.com/tar-mirror/gnu-m4
> In their code, they have the following which fails to compile when
SIGSTKSZ
> < 16384 is interpreted.
> This is going to be a challenge to make work.
>
> # define SIGSTKSZ 8192
> #ifndef SIGSTKSZ
> # define SIGSTKSZ 16384
> #elif HAVE_LIBSIGSEGV && SIGSTKSZ < 16384
> /* libsigsegv 2.6 through 2.8 have a bug where some architectures use
> more than the Linux default of an 8k alternate stack when deciding
> if a fault was caused by stack overflow. */
> # undef SIGSTKSZ
> # define SIGSTKSZ 16384
> #endif
AFAICT libsigsegv 2.8 is a release dating from 2009, obsoleted by the
2.9 release in 2010.
I'd question whether this code really need to workaround a bug in
something that is 11 years old.
IOW, I'd suggest just deleting this hack entirely.
Regards,
Daniel
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