qt-everywhere-src-5.15.1/qtbase/examples/widgets/tutorials/addressbook/part1/part1.pro

QT += widgets

SOURCES   = addressbook.cpp \
            main.cpp
HEADERS   = addressbook.h

QMAKE_PROJECT_NAME = ab_part1

# install
target.path = $$[QT_INSTALL_EXAMPLES]/widgets/tutorials/addressbook/part1
INSTALLS += target