-* If you break the logs, you want to define XBT_LOG_MAYDAY at the beginning of log.h. It deactivates the whole logging mechanism, switching to printfs instead.
- SimGrid then becomes incredibly verbose, but it you let you fixing things.
+* If you add or remove a file, you can check that everything is correctly setup with ``make distcheck``.
+
+* If everything gets crazy, as if it were not using the code that you actually compile, well, maybe it's using another version
+ of SimGrid on your disk. Use ``ldd`` on any simulator to check which library gets used. If you installed a SimGrid package,
+ you probably need to uninstall it.
+
+* If you break the logs, you want to define XBT_LOG_MAYDAY at the beginning of log.h. It deactivates the whole logging
+ mechanism, switching to printfs instead. SimGrid then becomes incredibly verbose, but it you let you fixing things.