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.
#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
On Wed, Mar 3, 2021 at 3:05 PM Florian Weimer <fweimer@xxxxxxxxxx> wrote:
* Carol Bouchard:
> Thank you Daniel and Richard. I'm going to have to study this some to
> understand how this solves the compile issue cause the glibc code
> isn't gone. It's still there.
SIGSTKSZ is no longer a (preprocessor) constant. If you use it in place
where a variable is expected, it works. But you can't use it in
preprocessor conditionals anymore.
Thanks,
Florian
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