TARGET = qjpeg QT += core-private gui-private SOURCES += main.cpp qjpeghandler.cpp HEADERS += main.h qjpeghandler_p.h qtConfig(system-jpeg) { QMAKE_USE += libjpeg } else { QMAKE_USE_PRIVATE += libjpeg } OTHER_FILES += jpeg.json PLUGIN_TYPE = imageformats PLUGIN_CLASS_NAME = QJpegPlugin load(qt_plugin)