Can be so :

qmake
mingw32-make release install

And,
1.- If I set INSTALL_ROOT, how it can affect to QT operation?
2.- Anyway to indicate this place to mingw32 install command ?
(mingw32-make release install:"c:\qtcreator")


Wysota, first thanks for the answer. I dont understand your explanation about the compilers used. Would not it be better than the two will use the same compiler?
Thanks.