Thanks Ben, I was just about to reply with the link:
https://github.com/rust-lang/rust/pull/16156/

Cody, you are welcome to test out the branch, as you are to compile rust
with OE anyway ;)
On 16 Oct 2014 20:52, "Ben Harris" <m...@bharr.is> wrote:

> This will be available very soon. There is a pull request in the final
> stages of review that will allow you to define custom targets with custom
> linkers, link args, PIC options, etc.
>
> That is for building binaries using rustc. I'm not sure what the solution
> would be for building rustc itself.
>
> On 16 October 2014 12:55, Cody P Schafer <d...@codyps.com> wrote:
>
>> Hi all,
>>
>> I'm trying to create an openembedded/yocto layer that includes rust,
>> and for this to work I need to be able to have rust build using target
>> a compiler with a prefix that isn't included in mk/platform.mk.
>>
>> For example:
>>
>> My yocto build is targeting a beaglebone black, so an
>> arm-linux-gnueabihf device. My particular gcc binary prefix is
>> "arm-poky-linux-gnueabi", which isn't something that rust's build
>> system knows about.
>>
>>
>> Q: Is there an accepted way to point particular rust targets at build
>> tools with a particular prefix? For example, can I tell rust's
>> configure that I've got an arm-unknown-linux-gnueabihf system (which
>> it understands) and then have it use tools with
>> "arm-poky-linux-gnueabihf-" as their prefix?
>>
>> Alternately, is the current practice to have buildscripts muck with
>> platform.mk to add my particular case?
>> _______________________________________________
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>> Rust-dev@mozilla.org
>> https://mail.mozilla.org/listinfo/rust-dev
>>
>
>
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