Fails on Mavericks 10.9.4 in 40486 with 402 vm, 20619 with vm from 18-9-2013 open: dbHandle named: dbName mode: mode <primitive: #primitiveNativeCall module: #NativeBoostPlugin> ^ self nbCall: #( int unqlite_open( db_ptr* dbHandle, String dbName, uint mode) ) module: self libraryFileNameForPlatform I did not compile myself, just used the lib-unqlite.dylib that is downloaded by the configuration. Stephan