Revision control
++ requires(qtHaveModule(widgets))
++
++ TEMPLATE = subdirs
++
++ SUBDIRS = books \
++ drilldown \
++ cachedtable \
++ querymodel \
++ relationaltablemodel \
++ sqlwidgetmapper \
++ tablemodel
++
++ qtHaveModule(xml): SUBDIRS += masterdetail
++
++ !cross_compile:{
++ contains(QT_BUILD_PARTS, tools):{
++ SUBDIRS += sqlbrowser
++ }
++ }