When I try to add a new (hand compiled version) of qt by selecting the corresponding qmake.exe file, all associated pathes point to another already installed version ?

In the attached file, you can see newly added version Qt 4.8.2 (4.8.2_64bits_vs2010), with its associated qmake located in directory C:\devel\qt\4.8.2_64bits_vs2010\bin. But in the details panel all envar QT_HOST_BINS ... point to C:\devel\qt\4.8.2_vs2008 which is the path of the first manually added qt version Qt 4.8.2 (4.8.2_vs2008) ?


Qt creator version is 2.7.0 (same issue on version 2.6.*).
Qt 4.8.2 (4.8.2_64bits_vs2010) was not compiled locally, I just copied all binaries (exe, dlls ...) from another machine. Directory tree and files seems ok compared to "officials" ones.

Do I have to add and envar ? When compiling, does the make install performs some important steps ?