Further observations: Setting ConnectToKad=0 in ~/.aMule/amule.conf lets amuled start up as expected, but of course without connecting to the Kademlia network.
Activating Kademlia later on via amulegui > Preferences > Connection > Networks and bootstraping from known clients makes amuled crash again. -- GPG Fingerprint 3DF5 E8AA 43FC 9FDF D086 F195 ADF5 0EDA F8AD D585
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