$ scons -f development\scons\SConstruct \
extra_lib_path=..\mingw_deps\lib \
extra_inc_path=..\mingw_deps\include \
extra_bin_path=..\mingw_deps\bin \
qt_dir=c:\qt \
$ scons -f development\scons\SConstruct \
extra_lib_path=..\mingw_deps\lib \
extra_inc_path=..\mingw_deps\include \
extra_bin_path=..\mingw_deps\bin \
qt_dir=c:\qt \