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Re: [PATCH] Fix PR41529

From: Richard Guenther <richard dot guenther at gmail dot com>
To: Kai Tietz <ktietz70 at googlemail dot com>
Cc: Dave Korn <dave dot korn dot cygwin at googlemail dot com>, Richard Guenther <rguenther at suse dot de>, gcc-patches at gcc dot gnu dot org, bonzini at gnu dot org
Date: Sat, 2 Jan 2010 14:39:41 +0100
Subject: Re: [PATCH] Fix PR41529
References: <alpine.LNX.2.00.1001021257370.17161@zhemvz.fhfr.qr> <4B3F4BD2.4010206@gmail.com> <90baa01f1001020522v62f02ef4h4d57cbf04a333c36@mail.gmail.com>

On Sat, Jan 2, 2010 at 2:22 PM, Kai Tietz <ktietz70@googlemail.com> wrote:
> 2010/1/2 Dave Korn <dave.korn.cygwin@googlemail.com>:
>> Richard Guenther wrote:
>>> This adds non-ELF target detection to the toplevel configure
>>> and disables LTO appropriately.
>>
>> ?I don't understand why you are doing this. ?LTO works fine on non-ELF
>> targets. ?Well, modulo a couple of bugs, which I've been in the course of
>> fixing at least for cygwin. ?What's the rationale?
>>
>> ? ?cheers,
>> ? ? ?DaveK
>
> I fully agree. I am curious about this, too. Test for mingw 32-bit and
> mingw 64-bit toolchains are working AFAICT well. Why is this disabling
> necessary?

Are you sure you get any LTO done?  Note that linking the intermediate
object files works well without going through lto1.

Richard.

> Cheers,
> Kai
>
>
> --
> | ?(\_/) This is Bunny. Copy and paste
> | (='.'=) Bunny into your signature to help
> | (")_(") him gain world domination
>

References:
- [PATCH] Fix PR41529
  - From: Richard Guenther
- Re: [PATCH] Fix PR41529
  - From: Dave Korn
- Re: [PATCH] Fix PR41529
  - From: Kai Tietz

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