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Re: [PATCH][4.8][4.7][4.6] Make -shared-libgcc the default on Cygwin.
- From: Richard Biener <richard dot guenther at gmail dot com>
- To: Dave Korn <dave dot korn dot cygwin at gmail dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Jakub Jelinek <jakub at redhat dot com>
- Date: Tue, 12 Mar 2013 09:59:36 +0100
- Subject: Re: [PATCH][4.8][4.7][4.6] Make -shared-libgcc the default on Cygwin.
- References: <513E8877.7070606@gmail.com>
On Tue, Mar 12, 2013 at 2:44 AM, Dave Korn <dave.korn.cygwin@gmail.com> wrote:
>
> Hello list,
>
> The attached patch makes -shared-libgcc the default for Cygwin. This is
> something that I should have done some time ago, as shared libgcc on Cygwin is
> more than mature. What's more, it is vital for reliable compilation of
> applications that throw exceptions or share TLS variables from DLLs into the
> main executable; at present these compile incorrectly without an explicit
> -shared-libgcc. For instance, the just-released MPFR-3.1.2 doesn't work
> without it.
>
> Given that it's a very simple tweak to the compiler specs on a single
> platform only, I would like to use my target maintainer's discretion to apply
> it even at this late stage, but I figure it's so close to RC1 that I should
> ask the RM's permission anyway.
>
> I'd also like to backport it to all the currently-open branches.
>
> gcc/ChangeLog
>
> 2013-03-12 Dave Korn <dave.korn.cygwin@....>
>
> * config/i386/cygwin.h (SHARED_LIBGCC_SPEC): Make shared libgcc the
> default setting.
>
> Is this OK by everyone?
Ok for trunk (4.8). Please add a documentation entry to gcc-4.8/changes.html.
I'm not sure whether this kind of stuff should change on a release branch,
I'll defer to others for this. Still, if you backport it, add a
gcc-4.x/changes.html
item to the sub-release sections.
Richard.
> cheers,
> DaveK
>
>
>