this patch fixes the compile warnings:
/data/kde5/src/kde/pim/kmail-account-wizard/src/ispdb/main.cpp:46:12: warning: enumeration value ‘Basic’ not handled in switch [-Wswitch]
/data/kde5/src/kde/pim/kmail-account-wizard/src/ispdb/main.cpp:46:12: warning: enumeration value ‘OAuth2’ not handled in switch [-Wswitch]