lessThan(QT_MAJOR_VERSION,5) { error("You need Qt 5.7 or newer to build OSCAR"); } if (equals(QT_MAJOR_VERSION,5)) { lessThan(QT_MINOR_VERSION,9) { message("You need Qt 5.9 to build OSCAR with Help Pages") } lessThan(QT_MINOR_VERSION,7) { error("You need Qt 5.7 or newer to build OSCAR"); } } TEMPLATE = subdirs SUBDIRS += oscar CONFIG += ordered