On May 22, 2015, Jason Merrill <ja...@redhat.com> wrote:

>       * configure.ac: Use C++ for all tests.  Use AC_CHECK_DECLS for
>       strstr and basename.
>       * configure: Regenerate.

This is ok, thanks.

I have one concern about scenarios in which config.cache is shared by
all builds for the host, but in which stage1 and stage2 compilers might
(and arguably should) get different results because of stage1's
-std=c++98, but with a shared config.cache, they won't.  config.cache is
disabled by default, but I have it enabled and shared, so I might catch
any fallout from this change, so I'll keep my eyes open.  It's not like
we couldn't have run into this before, due to differences between the
system C compiler and stage1, so...  /me crosses fingers ;-)

-- 
Alexandre Oliva, freedom fighter    http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/   FSF Latin America board member
Free Software Evangelist|Red Hat Brasil GNU Toolchain Engineer

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