[Qt-interest] Qt SDK 4.6 on OS X 10.6: Compile 64bit possible?

[Richard]

>
> seemed to support my assumption: "Qt follows suit and is also 64-bit  
> by default when building for Cocoa (Select this with the -cocoa flag  
> at the configure line or use the -arch x86_64 flag)."

If you build your app against Qt/Cocoa on Snow Leopard, it should be  
64 bit (only) by default (on Leopard it will be 32 bit).

>
> One last question, out of curiosity: I am not yet familiar with  
> "Frameworks", but I understand that the "Cocoa" port supports both  
> 32bit and 64bit applications. Does that mean that there are two  
> distinct libraries lying around "somewhere" for e.g. QtCore? Are  
> they both under /Library/Frameworks/Qt/... (can't remember the exact  
> path right now), something like QtCore32.dynlib and QtCore64.dynlib  
> (names made up by me)? And when deploying my app I also have to make  
> sure which Qt library files to ship along?


The binary found inside the framework contains versions for all the  
different architectures at the same time. E.g. the /Library/frameworks/ 
QtGui.framework/QtGui binary for the Qt/Cocoa package will contain  
both i386 and x86_64, and as such, be twize the size of a build that  
only supported a single architecture.

-Richard

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