Thanks guys!!

When I swap the DEPENDPATH to INCLUDEPATH the program compiled so well, but now I have another problem!!
When I do a double click in the exe generated, a message is shown saying:

This program couldn't be started cause mingwm10.dll wasn't found. The reinstall of application could solve this problem.

but I have this dll in these directorys:

c:\MinGW\bin
c:\Qt\4.3.2\bin

where should I put this dll? Should I reinstall MinGW?