| --- a/src-plugins/generic/dlep/radio/dlep_radio_internal.h | 
 | +++ b/src-plugins/generic/dlep/radio/dlep_radio_internal.h | 
 | @@ -49,6 +49,6 @@ | 
 |  #include "core/oonf_logging.h" | 
 |   | 
 |  /* headers only for use inside the DLEP_RADIO subsystem */ | 
 | -enum oonf_log_source LOG_DLEP_RADIO; | 
 | +extern enum oonf_log_source LOG_DLEP_RADIO; | 
 |   | 
 |  #endif /* DLEP_RADIO_INTERNAL_H_ */ | 
 | --- a/src-plugins/generic/nl80211_listener/nl80211_internal.h | 
 | +++ b/src-plugins/generic/nl80211_listener/nl80211_internal.h | 
 | @@ -49,6 +49,6 @@ | 
 |  #include "core/oonf_logging.h" | 
 |   | 
 |  /* headers only for use inside the NL80211 subsystem */ | 
 | -enum oonf_log_source LOG_NL80211; | 
 | +extern enum oonf_log_source LOG_NL80211; | 
 |   | 
 |  #endif /* NL80211_INTERNAL_H_ */ |