Segmentation fault for 5.1.0 on Debian
Mark Prior
mrp at mrp.net
Sat Oct 28 02:21:56 UTC 2017
Thanks Nick. That does indeed stop the crashing of rtconfig.
Mark.
On 28/10/17 09:59, Nick Hilliard wrote:
> Daryl Collins wrote:
>> I forgot that I reinstalled my scratch VM since I last worked on
>> irrtoolset. It does indeed seem to be an OS/library version thing etc.
>>
>> Booted my old VM (Ubuntu 14.04.5 LTS) and master works fine. New VM is
>> running Ubuntu 17.04 and segfaults.
>
> this looks like a gcc6 compiler optimisation bug relating to the
> -fno-tree-vrp flag. If you do something like this:
>
> % export CFLAGS="-O2 -fno-tree-vrp"
> % ./configure
> % make
>
> ... it should work fine.
>
> I've committed a (very ugly) workaround to master.
>
> Alternatively, you could compile with llvm:
>
> % export CXX clang++
> % export CC clang
> % ./configure
> % make
>
> Nick
>
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