bug#13479: Cross Compiling for ARM

[Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Stefan Kangas <stefankangas@gmail.com> writes:

> Toon Claes <toon@iotcl.net> writes:
>
>> I was trying to cross-compile emacs for ARM (don't ask me why).
>> But got an error during 'make' (see output below FIRST RUN).
>>
>> So it's for sure 'test-distrub' was build for ARM, while it is trying to run on i686.
>>
>> On the second run (just, ran 'make again), I got a similar error on 'prefix-args'.
>> But for some reason the 'test-distrub' error is gone (probably because 'make' thinks it is already finished.
>>
>> So I have to compile them with the host compiler (i686).
>> But I'm not sure how to implement this properly.
>>
>>
>> Also I would like to get rid of the warning: "LIB_GCC" redefined
>
> That was 12 years ago.  I'm therefore reaching out to ask if this bug is
> still relevant, or if it has since been fixed?
>
> If I don't hear back from you within a couple of months, Ill just assume
> that this has been fixed and close this bug.

The Android port is routinely cross-compiled for ARM systems, so despite
its using a different build procedure from the rest of our builds, no
code except dumping should remain that prevents cross-compiling Emacs.

The OP's requirements have also been satisified by the Android port,
which is supposed to support Chromebooks.