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Date: Wed, 27 May 2015 13:32:00 -0000
Message-ID: <CAFiYyc206GVPX+mbs0kHH4ZsbbNb-65SaVOzayNP5ZF0TzF8Ow@mail.gmail.com>
Subject: Re: PATCH to run autoconf tests with C++ compiler
From: Richard Biener <richard.guenther@gmail.com>
To: Andreas Schwab <schwab@suse.de>
Cc: Jason Merrill <jason@redhat.com>, Alexandre Oliva <aoliva@redhat.com>, 	gcc-patches List <gcc-patches@gcc.gnu.org>
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On Wed, May 27, 2015 at 10:49 AM, Andreas Schwab <schwab@suse.de> wrote:
> This breaks all checks for supported compiler options:
>
> configure:6382: checking whether gcc supports -Wnarrowing
> configure:6399: gcc -c -Wnarrowing  conftest.c >&5
> cc1: error: unrecognized command line option "-Wnarrowing"
> configure:6399: $? = 1
>
> configure:6485: checking whether gcc supports -Wnarrowing
> configure:6502: g++ -std=c++98 -c -g   conftest.cpp >&5
> configure:6502: $? = 0
> configure:6511: result: yes

And thus causes PR66304, bootstrap failure with host gcc 4.3 (at least).

Richard.

> Andreas.
>
> --
> Andreas Schwab, SUSE Labs, schwab@suse.de
> GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
> "And now for something completely different."