Force QtCreator to run “qmake” when building

Question

In some of my projects I use some pre-build step(s) configured in the .pro file. So qmake will execute this step whenever it is activated.

Now in QtCreator,

Answer 1

I'm using the following codes in my .pro file.

QMAKE_CLEAN += ./Makefile

This makes run qmake whenever executing clean.