[SOLVED] Cannot emerge world

[cfgauss]

emerge --backtrack=100 -uDN --verbose-conflicts --keep-going --with-bdeps=y @world produces these errors. A previous emerge world failure was solved by compiling with Clang. I believe this failure is due to some other cause, however.

Any debugging hints are welcomed.

[SOLVED] Since the errors were largely dev-qt, I reinstalled KDE after which emerge world was successful. [/SOLVED]