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Re: Patch RFA: Fix -fpie -fpic
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Ian Lance Taylor <iant at google dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 13 Nov 2012 12:57:14 -0800
- Subject: Re: Patch RFA: Fix -fpie -fpic
- References: <mcrmwyl8c59.fsf@google.com>
On Tue, Nov 13, 2012 at 12:45 PM, Ian Lance Taylor <iant@google.com> wrote:
> Right now if you run "gcc -fpie -fpic" you get, in effect, "gcc -fpie".
> I think you should get "gcc -fpic". In general I think that of the
> options -fpic, -fPIC, -fpie, -fPIE, -fno-pic, -fno-PIC, -fno-pie,
> -fno-PIE the compiler should act as though only the last of those
> options were specified. That follows the usual formulat in which the
> last option wins.
>
> This patch implements that. Bootstrapped and tested on
> x86_64-unknown-linux-gnu. OK for mainline?
>
> Ian
>
>
> 2012-11-13 Ian Lance Taylor <iant@google.com>
>
> * common.opt (fPIC, fPIE, fpic, fpie): Create a Negative loop such
> that any of these options disables the others.
>
>
Although I can't approve it, this is how it works when I introduced
the Negative feature.
--
H.J.