INCLUDEPATH += $$PWD DEPENDPATH += $$PWD HEADERS += $$PWD/qtsingleapplication.h $$PWD/qtlocalpeer.h SOURCES += $$PWD/qtsingleapplication.cpp $$PWD/qtlocalpeer.cpp QT *= network widgets gotqtlockedfile = $$find(HEADERS, .*qtlockedfile.h) isEmpty(gotqtlockedfile):include(../qtlockedfile/qtlockedfile.pri) win32:contains(TEMPLATE, lib):contains(CONFIG, shared) { DEFINES += QT_QTSINGLEAPPLICATION_EXPORT=__declspec(dllexport) }