[vtkusers] How to build libraries for both 32-bit and 64-bit architectures

[Michael Jackson]

Understand that Qt 4.5 (I'm just guessing here) will not be released  
until next summer. That is a long time to wait.

Can you hack into the Qt 4.5 source and set Cocoa support for 32 bits?

mike

On Sep 29, 2008, at 11:18 AM, Elvis Dowson wrote:

> Hi Sean,
>                    Thanks for the advice, it really does reflect  
> what I've just discovered. Trying to get things to move to 64-bits  
> on a new Mac OS X 10.5.x installation is quite involved.
>
> I had more problems trying to compile the snapshot version of  
> Qt-4.5.x for 64-bits, so I'm going to wait till they release the  
> official version and then try the Cocoa bindings.
>
> On Sep 29, 2008, at 7:06 PM, Sean McBride wrote:
>
>>
>>
>> However, perhaps you are doing too many things at once.  Although  
>> both
>> VTK and Cocoa support 64 bit, they are both much better tested in 32
>> bit.  I would suggest working only in 32 bit.  Are you using 64 bit
>> because it was the only way to get Cocoa support with the new Qt?  I
>> suspect Qt is also much better tested in 32 bit.  Considering you are
>> using a new Qt with experimental Cocoa support, adding 64 bit into  
>> the
>> mix will only complicate things.
>
> Yes, as I'm discovering right now. For the moment, I'm going to make  
> do with Carbon support and try to get things to work in 32-bits.
>
>>
>>
>> Also, are you building libjpeg and libpng for VTK's sake?  It would  
>> be
>> simpler to just use the versions that come with VTK itself, instead  
>> of
>> trying to use separate versions.  Just building VTK with default
>> settings will use the built-in versions of those libs.
>
> Actually, I needed this for grass-6.4.x, which requires that I  
> install the following libraries
>
> proj-4.6.0
> gdal-1.5.2
> libjpeg-6b
> libtiff-3.8.2
> libpng-1.2.31
> fftw-2.1.5
>
> So, I got stuck with libjpeg-6b, which I understand is problematic  
> to compile for 64-bits for some reason.
>
>>
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