QT += core TEMPLATE = lib CONFIG += staticlib c++17 SOURCES += $$files($$PWD/*.cpp, true) HEADERS += $$files($$PWD/*.h, true) app.depends += \ compression LIBS += \ -L$$OUT_PWD/../ -lcompression INCLUDEPATH += \ $$PWD/../compression DEPENDPATH += \ $$PWD/../compression DESTDIR = $$OUT_PWD/../