Qt's website doesn't offer some 64-bit downloads
When you go to the "download section":http://qt.nokia.com/downloads of Qt's website, the following sections are displayed:
Other downloads ( Visual Studio Add-in, etc. )
Here are some 64-bit unavailability spots:
Qt SDK doesn't have 64-bit downloads for Windows.
Qt Library doesn't have 64-bit downloads for Windows and Linux.
Qt Creator doesn't have 64-bit downloads for Windows.
For example, I downloaded the Qt 4.8.0 VS2010 for Windows, but it is build only for x86.
Ad 1. - SDK on Windows uses mingw-gcc, and is available only in 32, because of mingw limitations. They can be overcome, but this is not "official" - if you want to, compile yourself.
Ad 2. - libraries are source code, you can compile it as 32 or 64b.
Ad 3. - see ad 1.
I'm not totally sure about Windows, as I use GNU/Linux. This is info I overheard here and there over time.
I have already compiled both 4.7.4 and 4.8.0 using VS 2010 x64 myself. I was just curious why these are not offered for download. I am particularly interested in VS 2010 x64 builds for Qt libraries. VS 2010 x86 builds are uploaded but no VS 2010 x64 ones.
Can't answer that. You would have to ask Nokia/ Trolls.
I'm happy to have both on tux, even though I use 64b only.
x64 for VS 2010 are offered by Nokia/Digia (maybe just for commercial customers)
but we would like to have x64 for VS 2008 as well.