It wouldn't build in OBS as i was told because of $(MAKE) INSTALL_ROOT="$(CURDIR)"/debian/imgrup install where it needs to be $(MAKE) INSTALL_ROOT="/usr/src/packages/BUILD"/debian/imgrup install what s not default by QtCreator and wouldn't build (i'll try to make this dir localy and give to my user permissions now and report later)
As well if i comment $(MAKE) clean it would leave .o files in tar.gz and if i uncomment back there would be no src files at all there.