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

[Ryan Schmidt]

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.