Index: tools/DCSsim/DCSsim.pro
===================================================================
diff -u -r59b4c22f45a1d098064a886452769204e90cfb4b -r51e99f2578e0901d9da91a4cb60d1b8858cfe971
--- tools/DCSsim/DCSsim.pro	(.../DCSsim.pro)	(revision 59b4c22f45a1d098064a886452769204e90cfb4b)
+++ tools/DCSsim/DCSsim.pro	(.../DCSsim.pro)	(revision 51e99f2578e0901d9da91a4cb60d1b8858cfe971)
@@ -1,6 +1,6 @@
 TEMPLATE = app
 TARGET   = DCSsim
-CONFIG  += c++20
+CONFIG  += c++17
 QT      += core network
 QT      -= gui
 
@@ -11,11 +11,13 @@
 DESTDIR = $$PWD/../bin
 
 HEADERS = \
-    DCSSimController.h
+    DCSSimController.h \
+    MqttPacket.h
 
 SOURCES = \
     DCSSimController.cpp \
-    main.cpp
+    main.cpp \
+    MqttPacket.cpp
 
 INCLUDEPATH += $$PWD