[Buildroot] Download external toolchain with make source

[Peter Korsgaard]

>>>>> "Herve" == Fache, Herve <h-fache at ti.com> writes:

 Herve> Hello list,
 Herve> We have a need for an external toolchain, and need to be able to
 Herve> download everything for off-line compilation. To reach this goal, we
 Herve> have added the option for make source to download the external
 Herve> toolchain together with the packages.

 Herve> I thought you may be interested in this very simple patch to support
 Herve> this feature :-)

Thanks. I would prefer to use (ab)use the uclibc-source target, similar
to how we ensure the external toolchain gets setup before building
packages.

I also just noticed crosstool-ng needs it as well.

I'll fix it up and commit.

-- 
Bye, Peter Korsgaard