Upgrading to Snow Leopard makes my programs no longer link to ports

[Paul Dennis Simonson]

How exactly do I rebuild the ports with the +universal variant?  I am  
not familiar with this.


On Sep 7, 2009, at 11:08 PM, Ryan Schmidt wrote:

>
> On Sep 7, 2009, at 22:04, Paul Simonson wrote:
>
>> Help!  I have recently upgraded to Snow Leopard and upgraded to the  
>> new
>> MacPorts for Snow Leopard (and I completely removed the old version  
>> of
>> MacPorts).  I have tried to reinstall my ports.  The ports download  
>> and compile
>> fine, but when I try to link to them (for example, to freeimage.a)  
>> in XCode, I get
>> the following messages:
>>
>> Warnings: in /opt/local/libfreeimage.dylib, file is not of required  
>> architecture
>>
>> and then all the files that use the freeimage library produce  
>> errors, saying
>> symbols not found.  First of all, why does it return an error about  
>> freeimage.dylib
>> when I am trying to link to freeimage.a?  Also, what can I do to  
>> get the
>> architecture problems to go away?  Change settings in XCode?   
>> Change settings in
>> MacPorts?  This same type of error occurs for any library I try to  
>> link to.
>>
>> Any help would be greatly appreciated!
>
> On Snow Leopard (in MacPorts and otherwise), software builds for  
> architecture x86_64 by default, as opposed to i386, which is what  
> Leopard and Tiger used by default on Intel Macs. If you are not also  
> building for x86_64 in Xcode, then that's the problem. You can  
> either rebuild your ports with the +universal variant to build both  
> x86_64 and i386, or change build_arch to i386 in macports.conf and  
> rebuild everything for just i386, if you don't want to build 64-bit.
>