[Buildroot] luajit package fails to build on x86_64 for x86

[Fabio Porcedda]

On Fri, Mar 7, 2014 at 10:30 PM, Thomas Petazzoni
<thomas.petazzoni at free-electrons.com> wrote:
> Dear Fabio Porcedda,
>
> On Fri, 7 Mar 2014 22:11:33 +0100, Fabio Porcedda wrote:
>
>> > Ok, but not on ARM or MIPS, and probably not on many other 32 bits
>> > architectures supported by Buildroot. Bottom line: testing 'gcc -m32'
>> > is not a good way of testing whether the architecture is 32 bits or is
>> > a 64 bits architecture capable of building and running 32 bits binaries.
>>
>> We need to test if 32bit binaries are built only for 64bit host architectures.
>> Which are the 64bit host architectures that Buildroot supports?
>
> Potentially any 64 bits architecture, we don't have particular
> dependencies on the host architecture.

Ok i undertand the general problem but right now the luajit package
support building 32 binaries on a 64 host architecture only if the
host compiler support the -m32 option so right now it's fine to test
only if the -m32 option is used.

So i think adding the line
select BR2_HOSTARCH_NEEDS_IA32_COMPILER if BR2_ARCH_IS_64
it's the right solution for checking the configurations supported by
the luajit package.

-- 
Fabio Porcedda