Add some random GCC attributes.
Add some random GCC attributes.

tcatm/babeld,jech/babeld,Gwendocg/babeldToS,wlanslovenija/babeld,Gwendocg/babeldToS,wlanslovenija/babeld,boutier/babeld,jech/babeld,Drooids/babeld,sudomesh/babeld,dtaht/babeld-shortrtt-metrics,woniullb/babeld