Re: m4 1.4.17 does not build on sparc on Debian unstable

[Eric Blake]

On 10/26/2013 08:01 AM, Santiago Vila wrote:
> Build log says:
> 
> [...]
> Checking ./stackovf.test
> Stack soft limit set to 300K
> Failure - m4 aborted unexpectedly
> Output from m4:
> m4: internal error detected; please report this bug to <address@hidden>: 
> Segmentation fault
> 
> Complete build log here:
> 
> https://buildd.debian.org/status/fetch.php?pkg=m4&arch=sparc&ver=1.4.17-1&stamp=1382635074
> 
> The build was attempted on two different sparc systems running Debian 
> unstable:
> 
> https://buildd.debian.org/status/logs.php?pkg=m4&ver=1.4.17-1&arch=sparc
> 
> I know there is a small chance that this is really a bug in the kernel
> or a bug in libc, but the error message says "report this to address@hidden",
> so this is the bug report that you requested.

Thanks.  Can you check whether GNU libsigsegv builds correctly on this
platform?  Most likely it is a bug in either kernel, libc, and/or
libsigsegv not interacting correctly, which results in m4's use of
libsigsegv no longer being able to detect stack overflow.  If we can get
libsigsegv patched to work around the problem, then the failure would
disappear from m4.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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