Re: [Bug-gnubg] Building on Ubuntu 14.04 : Temporary Workaround

[Thomas A. Moulton]

Ah yes, those comments look familiar...

well, it was a good exercise for me anyway :)

thanks for all you guys do!

tom

On 07/27/2015 11:56 PM, Michael Petch wrote:
> On 2015-07-27 8:05 PM, Thomas A. Moulton wrote:
> > Michael,
> >
> > I did some  checking and it appears that the problem was introduced in
> > Rev 1.49 of configure.ac
> >
> > In that revision AC_PROG_CC_STDC was added on line 77
> >
> > I commented out that line in the HEAD revision (line 81) and ./gnubg
> > --tty did come up as expected.
> Thanks Thomas,
>
> Philippe and I were aware of it. Buried in the messages between us I had
> made the comment below to him. References to AC_PROG_CC_STDC are part of
> using -std=c99 as part of the compiler options and what optimization
> level you use also factors in. No optimizations seems to work.
>
> --------------------
>
> I rebuilt it from tagged 1.05 sources in CVS and the problem didn't
> occur. I then built it from HEAD and it worked.
>
> I sent you an email that seems to suggest the issue is with
> Optimizations (-O0 seems to work) / compiling with --std=c99 / and some
> issue with the C Runtime (And it could be related to something in our
> code that makes this appear. If it is a bug it is something that seems
> to affect the runtime code prior to main() being called.
>
> The error you see under Ubuntu 15.04 is actually the same thing I see on
> 14.04 depending on the optimization level I use.
>
> If I remove all the std=c99 stuff from configure.ac that has been added
> then it seems to work fine no matter the optimization level.