I installed Qt-4.3.1-mingw under winxp, and there are errors list below while I compiled the debug version. Need help. Thank so much.

cd src\winmain\ && mingw32-make -f Makefile
mingw32-make[1]: Entering directory `C:/Qt/4.3.1/src/winmain'
mingw32-make -f Makefile.Debug all
Makefile.Debug:116: *** multiple target patterns. Stop.
mingw32-make[2]: Entering directory `C:/Qt/4.3.1/src/winmain'
mingw32-make[2]: Leaving directory `C:/Qt/4.3.1/src/winmain'
mingw32-make[1]: *** [debug-all] Error 2
mingw32-make[1]: Leaving directory `C:/Qt/4.3.1/src/winmain'
mingw32-make: *** [sub-winmain-make_default-ordered] Error 2