macports in 32 bit on snow leopard ?

[Johannes Behr]

On 17 Feb 2010, at 12:43, Ryan Schmidt wrote:

> On Feb 17, 2010, at 05:39, Johannes Behr wrote:
> 
>> On 17 Feb 2010, at 12:17, Ryan Schmidt wrote:
>> 
>>> On Feb 17, 2010, at 04:48, Johannes Behr wrote:
>>> 
>>>> is there a 32 bit version of macports for snow leopard
>>> 
>>> If you're on a 32-bit Mac, MacPorts will automatically build 32-bit, even on Snow Leopard.
>> 
>> Well, i do I know if I'm on a 32-bit or 64-bit mac ?
>> I just install snow leopard. That's it.
> 
> If you have an Intel Core processor, which was in the very first line of Intel Macs in 2006, you have a 32-bit Mac. If you have an Intel Core 2 or any other Intel processor, you have a 64-bit Mac.

6 month old Macboot Pro => 64bit

> 
> 
>>> If you're on a 64-bit Mac but would like to build 32-bit, set build_arch to i386 in macports.conf before installing any ports.
>> 
>> So I have to uninstall single packages and reinstall them (after switching build_arch to i386)
>> or do I have to reinstall all packages.
> 
> If that's the way you want to go, I would recommend you uninstall all ports. Then change build_arch and reinstall the ports you need. However:

How do I uninstall all ports ?

> 
> 
>> What is the base way?
>> 
>> I just need some 32-bit libs (e.g. libjasper) and some others for a own project
> 
> Perhaps you would be happier with universal ports? built for both 32-bit and 64-bit? In that case, you can rebuild all ports universal by running this command:
> 
> sudo port upgrade --enforce-variants active +universal

This would assume that all ports ( inc. latex and wine ) with 32/64 bit ?
It this correct ?

(latex and wine is the second reason why I installed macports).

Thanks for you help !
johannes

> 
> 

--
Dr. Johannes Behr
Leiter Projektbereich VR

Fraunhofer-Institut für Graphische Datenverarbeitung IGD
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