Prevent building of qgis_process when WITH_ANALYSIS=FALSE

Author: tpalan

CMakeLists.txt

@@ -204,6 +204,10 @@ IF(WITH_CORE)
     MESSAGE(FATAL_ERROR "Desktop cannot be built without analysis")
   ENDIF()
 
+  IF ( WITH_QGIS_PROCESS AND NOT WITH_ANALYSIS )
+    MESSAGE(FATAL_ERROR "Process tool cannot be built without analysis")
+  ENDIF()
+
   IF ( WITH_DESKTOP )
     # The qgis_desktop target is meant to build a minimal but complete running QGIS during development
     # This should help to reduce compile time while still having a "complete enough" QGIS for most of the development