CONFIG += designer+− win32|mac: CONFIG+= debug_and_release+− QTDIR_build:DESTDIR = $$QT_BUILD_TREE/plugins/designer+− contains(TEMPLATE, ".*lib"):TARGET = $$qtLibraryTarget($$TARGET)+− +− # install+− target.path = $$[QT_INSTALL_PLUGINS]/designer+− INSTALLS += target+−