Porting qt app from 32 bit to 64 bit

[AmolShinde_8]

Hi,

I want to port my exisitng 32 bit qt app to 64 bit. I don't see any QT 64 bit binaries. Do we need to build the QT first on 64 bit. If yes can some one please tell me the steps on building the QT.

Thanks
Amol.

[ChrisW67]

Do we need to build the QT first on 64 bit.
Yes, unless you are on are Linux in which case there is a 64-bit SDK download. Only the MSVC compiler is supported on Windows for 64-bit.

If yes can some one please tell me the steps on building the QT.
The steps are the same as building Qt anywhere else.
http://doc.qt.nokia.com/4.7/installation.html