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  • To compile Qt with VS 2012 (VS 11) for 64 bit:
    • 4.8.4 does not compile under VS 2012 but it compiles with a patch (see below).
    • Note that if you compile something greater than 4.8.4, you'd need to change set(Slicer_EXPERIMENTAL_QT_VERSION "4.8.4") in Slicer's CMakeLists.txt.
    • Install perl (I used [1] and choose 64 bit version)
    • Build/install in say C:\QtHacked.
    • Cd into this directory and git clone git:// (this gives a pre-release version, in this case as per 6/19/2013, mkspecs/qconfig.pri provides version info: QT_VERSION = 4.8.5). Alternatively, find zipped file of official release [2]. As per 6/20/2013 you need to address the next item, whatever the version you have.
    • Use VS command prompt "x64 Cross Tools".
    • Then paste the following (-mp for multiprocessor use during build). (Adjust perl path as necessary.)

set QTDIR=C:\QtHacked\Qt
set PATH=%QTDIR%\bin;%PATH%
set QMAKESPEC=win32-msvc2012
cd /D %QTDIR%\
set PATH=C:\Perl64\bin;%PATH%
configure -release -mp -opensource -platform win32-msvc2012

Then go brew a pot of coffee and come back. If something fails at this point, you probably didn't install "Update 2" for VS 2012. Then,


Now you have a few hours for yourself. When the build is done, you can test it by say running "C:\QtHacked\qt\bin\qtdemo.exe".