unset QTDIR
cd qt5
git pull
git submodule foreach 'git pull'
cd qtbase
git checkout master && git reset --hard origin/master
cd ..
export PATH=$PWD/qtbase/bin:$PATH
./configure $(cat config.flags) && make -j16
su -c "make install -j16"
for dir in qtscript qtsvg qtxmlpatterns qtdeclarative
do
 cd $dir
 qmake && make
 cd ..
done
su
for dir in qtscript qtsvg qtxmlpatterns qtdeclarative
do
 cd $dir
 make install
 cd ..
done