Flag warnings show intermediate hscpp filenames on SmartOS

[Alain O'Dea]

Yes. I can do that.

On SmartOS it may not be GCC 3.4.3 causing this. I see this on GCC 4.7.x
through 4.9.x. The paths to gcc on SmartOS also differ. I'll have to verify
that as part of checking this.

I think requiring cpphs on Illumos and Solaris might be a reasonable
compromise. I like the idea of warning about this and suggesting
--with-hs-cpp /path/to/cpphs.
On Thu, Dec 31, 2015 at 11:51 Karel Gardas <karel.gardas at centrum.cz> wrote:

> On 12/31/15 01:30 PM, Ben Gamari wrote:
> > Karel Gardas <karel.gardas at centrum.cz> writes:
> >
> >> Hi Alain,
> >>
> >> I guess you are hit by well known issue in GCC's CPP on Solaris. Just
> >> verify here:
> >>
> >> https://gcc.gnu.org/ml/gcc/2014-08/msg00114.html
> >>
> >> solution in this case is simple: use configure option to set different
> >> non buggy CPP as a CPP for GHC.
> >>
> >> Please let me know if this is the culprit,
> >>
> > Perhaps we should add an autoconf check to preempt this issue and point
> > affected users in the direction of a solution?
>
> Hmm, I tried that with https://phabricator.haskell.org/D151 -- but
> perhaps some nice warning emitted during configure time in case of
> undetected GCC 3.4.3 on Solaris will help here? This will also need to
> be done in bindist configure thought.
>
> Alain, would you do that? I'm asking since you've been hit by this
> recently...
>
> Karel
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/ghc-devs/attachments/20151231/fdfe205f/attachment.html>