Revision control
++ TEMPLATE = subdirs
++
++ sd = $$files(*)
++ for(d, sd): \
++ exists($$d/$${d}.pro): \
++ SUBDIRS += $$d
++ TEMPLATE = subdirs
++
++ sd = $$files(*)
++ for(d, sd): \
++ exists($$d/$${d}.pro): \
++ SUBDIRS += $$d