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Re: [Bug libstdc++/85845] [9 Regression] Many libstdc++ test failures

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: Richard Biener <richard dot guenther at gmail dot com>, frs dot dumont at gmail dot com
Cc: libstdc++ <libstdc++ at gcc dot gnu dot org>, GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Tue, 22 May 2018 13:56:08 +0200
Subject: Re: [Bug libstdc++/85845] [9 Regression] Many libstdc++ test failures
References: <bug-85845-19885@http.gcc.gnu.org/bugzilla/> <bug-85845-19885-zkYeVa8DFi@http.gcc.gnu.org/bugzilla/> <a29d6a33-8c28-cbfb-39e8-98c5f4d945da@gmail.com> <CAFiYyc080YQFvsSjG7L_0bjE=Kf_feGDoBSJrww1P4pM3=x=rg@mail.gmail.com>

Hi,

On 22/05/2018 11:24, Richard Biener wrote:

On Mon, May 21, 2018 at 7:01 PM François Dumont <frs.dumont@gmail.com>
wrote:

I just committed this patch as trivial.
I must have run tests without rebuilding pre-compiled headers. I'll have
to find out how to build tests without pre-compiled headers to avoid it
in the future.

I configure with --disable-libstdcxx-pch which also reduces build-time.

If I understand correctly the issue, to test without PCHs I used toconfigure / test / etc normally and then by-hand remove the generatedPCHs and run make check inside libstdc++-v3/testsuite (*not* insidelibstdc++-v3) in case of need. It's an HACK, which exploits sort of abug: in that case make check doesn't lead to the automatic regenerationof the PCHs.


Paolo.

References:
- Re: [Bug libstdc++/85845] [9 Regression] Many libstdc++ test failures
  - From: François Dumont
- Re: [Bug libstdc++/85845] [9 Regression] Many libstdc++ test failures
  - From: Richard Biener

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