MacPorts and x86_64?

[Ryan Schmidt]

On Jun 24, 2009, at 15:03, Andre-John Mas wrote:

> On 24-Jun-2009, at 15:12, Joshua Root wrote:
>
>> I'm told that the compiler on Snow Leopard generates x86_64  
>> binaries by
>> default. So with the current MacPorts code, that is what you'll get
>> (unless you build universal, or the port adds -arch flags itself).
>>
>> The plan is to add a setting for the default target arch. MacPorts  
>> would
>> then attempt to always pass a -arch flag to the compiler (or -m32/- 
>> m64
>> for non-Apple compilers), and individual ports would need to make  
>> sure
>> that this is picked up by their build system if the default methods
>> don't suffice. The "sensible default" for this option would appear  
>> to be
>> x86_64 on Snow Leopard, and i386 or ppc on earlier OS releases  
>> according
>> to the hardware arch.
>
> Will this option be specifiable in a configuration, so that in the  
> short
> term we can test 64-bit compatibility in Leopard?

I think you can already test this by using the +universal variant and  
setting universal_archs to x86_64 in macports.conf.