Reworks CMake wiring for Qt6 codegen include order

Adds missing toolchain packages and include dirs so generated headers resolve.

qt6-after/qt6-migrated-legatus/Lts/Services/ExerciseEventManagement/CMakeLists.txt

@@ -4,9 +4,15 @@
 # $Author$
 #
 
-# Make ${Qt6_WebSockets} optional
-if(QT6_GUI_AVAILABLE AND TARGET Qt6::WebSockets)
-  set(Qt6_WebSockets ${Qt6_WebSockets})
+# Link the real WebSockets module whenever the websocket code path is
+# compiled: QT6_WEBSOCKETS_AVAILABLE (root CMakeLists) and the manual
+# Qt6::WebSockets import are set when the real module was found. The old
+# QT6_GUI_AVAILABLE condition never holds in this environment (Qt6
+# discovery takes the minimal path) and the Qt6_WebSockets variable was
+# never defined, so the websocket code compiled without the module on the
+# link line and failed only at link time.
+if(QT6_WEBSOCKETS_REAL_FOUND OR Qt6WebSockets_FOUND)
+  set(Qt6_WebSockets Qt6::WebSockets)
 else()
   set(Qt6_WebSockets "")
 endif()
@@ -30,6 +36,10 @@ SET(SRCS_common
 IF(BUILD_RTI)
   CODEGEN_IDL_SVC(SRCS_common ${xml_FILE})
 ENDIF()
+# The enums stub copy below would overwrite the rtiddsgen-generated
+# <svc>_enums.hpp (RTIDDSGEN on <svc>_enums.idl writes the same build-dir
+# path) on every cmake re-configure. Only keep it for BUILD_RTI=OFF.
+IF(NOT BUILD_RTI)
 # Stub file for compilation (fallback when no IDL exists)
 CONFIGURE_FILE(
   ${CMAKE_SOURCE_DIR}/include/ExerciseEventManagement/eem_enums.hpp.stub
@@ -37,6 +47,7 @@ CONFIGURE_FILE(
   COPYONLY
 )
 
+ENDIF()
 # Generate eem_db_structs.cpp/.h
 CODEGEN_DATABASE_STRUCTS(SRCS_common ${xml_FILE})
 # Generate eem_db_impl.cpp/.h
@@ -47,6 +58,10 @@ IF(BUILD_RTI)
   RTIDDSGEN(SRCS_common eem_enums.idl)
   RTIDDSGEN(SRCS_common eem.idl)
 ENDIF()
+# The enums stub copy below would overwrite the rtiddsgen-generated
+# <svc>_enums.hpp (RTIDDSGEN on <svc>_enums.idl writes the same build-dir
+# path) on every cmake re-configure. Only keep it for BUILD_RTI=OFF.
+IF(NOT BUILD_RTI)
 # Copy eem_enums.hpp.stub to build directory for compilation
 CONFIGURE_FILE(
   ${CMAKE_SOURCE_DIR}/include/ExerciseEventManagement/eem_enums.hpp.stub
@@ -55,6 +70,7 @@ CONFIGURE_FILE(
 )
 
 
+ENDIF()
 # Generate eem_dt[s,c]_types.h, eem_ft[s,c]_types.h
 IF(BUILD_RTI)
   CODEGEN_TOPIC_TYPEDEFS(SRCS_common ${xml_FILE})