[OE-core] [PATCH v3] Introduce multiarch DISTRO_FEATURE

[McClintock Matthew-B29882]

On Fri, Nov 25, 2011 at 5:40 PM, Richard Purdie
<richard.purdie at linuxfoundation.org> wrote:
> This is firmly in multilib territory as its not just libgcc but libc as
> well and so it goes on.
>
> One of the reasons I'm nervous of the patch you're replying to is that
> people are now going to try and cross the two and we'll end up with a
> mess :(.
>
> Trying to build just libgcc from the gcc tree is a nightmare and when we
> last tried it, caused no end of problems.
>
> What specific problem are you trying to solve?

The specific issue I'm having is for our 64-bit part that still uses a
32-bit u-boot. Not sure the best approach really is...

I've tried utilizing multilib by adding the following to my u-boot
recipe, but it's just hacky...

DEPENDS_e5500-64b_append = " lib32-gcc"
CC_e5500-64b = "powerpc-poky-linux-gcc -m32"

I'd rather NOT recompile gcc/eglibc/etc just for this 32-bit build of
u-boot where we don't need libc. I'd rather just have a functional
32bit/64bit compiler for our 64-bit target.

Looking forward farther, I would like to have one toolchain
("meta-toolchain") that can produce target code for multiple targets
also.

-M