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Re: c-stack [was: M4 1.4.14 on AIX 7.1BETA]

From: Eric Blake
Subject: Re: c-stack [was: M4 1.4.14 on AIX 7.1BETA]
Date: Thu, 29 Jul 2010 10:59:56 -0600
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100720 Fedora/3.1.1-1.fc13 Lightning/1.0b2pre Mnenhy/0.8.3 Thunderbird/3.1.1

On 07/29/2010 10:46 AM, Rainer Tammer wrote:
> And test-c-stack also dumps:
> # dbx test-c-stack
> Type 'help' for help.
> reading symbolic information ...
> (dbx) where
> __start() at 0x10000150
> (dbx)

Ouch.  Did AIX stack overflow handling change between 6 and 7?  Do you
have GNU libsigsegv installed?  It's optional for M4, but this test
behaves differently depending on whether the library is present.

If libsigsegv is installed, then does it pass its own 'make check'?  It
may be that no one has yet ported stack overflow handling to AIX 7.

If libsigsegv is not installed, but installing it passes 'make check',
then it is just a matter of figuring out why libsigsegv is able to work
to make gnulib's c-stack do likewise.

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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