[46483] trunk/dports/_resources/port1.0/group/muniversal-1.0.tcl

[Toby Peterson]

On Thu, Feb 5, 2009 at 10:51 PM, Ryan Schmidt <ryandesign at macports.org> wrote:
>
> On Feb 6, 2009, at 00:01, Marcus Calhoun-Lopez wrote:
>
>> Joshua Root <jmr at ...> writes:
>>
>>> There's the hw.cpu64bit_capable sysctl variable, on Leopard.
>>
>> Just what I was looking for.
>> Thank you.
>>
>> I only have Leopard machines to test on, however.
>> Does anyone know if the code:
>> if { [exec "/usr/sbin/sysctl" "-n" "hw.cpu64bit_capable"] != "1" } {
>> .
>> .
>> .
>> }
>> works on all platforms where universal binaries might be built?
>
> Hmm. Well, on Tiger it says:
>
> /usr/sbin/sysctl -n hw.cpu64bit_capable
> second level name cpu64bit_capable in hw.cpu64bit_capable is invalid
>
> So if you were to write code around that response, you would presumably
> assume that 64-bit binaries cannot be built on Tiger, which isn't
> necessarily so.
>
> Maybe there's a way we can ask about the processor family.

I think the easiest solution is to simply match the architectures of libSystem.

- Toby