enable __mt_alloc?

[R Hill]

Ola Rönnerup wrote:
> Hi,
> 
> How do I enable the use of the __mt_alloc-allocator instead of the default one?

this patch applies to gcc-4 but i think it will give you an idea where 
to look.

http://cvs.fedora.redhat.com/viewcvs/*checkout*/devel/gcc/gcc4-libstdc%2B%2B-mt-alloc.patch