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Re: using atomic builtins

From: Paolo Carlini <pcarlini at suse dot de>
To: Benjamin Kosnik <bkoz at redhat dot com>
Cc: libstdc++ at gcc dot gnu dot org, rth at redhat dot com, phillip dot m dot jordan at gmail dot com
Date: Mon, 26 Jun 2006 20:05:39 +0200
Subject: Re: using atomic builtins
References: <20060626125850.5211561d.bkoz@redhat.com>

Benjamin Kosnik wrote:

Hey all!

I've been reviewing some of the excellent work that Phillip is doing for summer of code.
As part of that, I'm reviewing:
http://mulliard.homelinux.org/~phillip/code/soc/patches/shared_ptr.patch
However, when I try to build/test with this patch on various i686 flavors, I get: undefined reference to "__sync_bool_compare_and_swap_4".

Eh! Isn't this the usual, extremely boring these days if you ask me, issue that by default we are still targeting i386?!? Indeed, adding '-march=i686' to the command line works for me... Sadly, I don't think we are going to change the default i?86 target... otherwise so many things would be so easy... ;)

Paolo.

References:
- using atomic builtins
  - From: Benjamin Kosnik

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