"Ambiguous declaration" build failure(s) — clang 3.6.0

PackageVersionSupposed error messageFull log Bug report
flush 0.9.12-3.1format.cpp:180:28: error: call to '_F' is ambiguous Log
herwig++ 2.6.0-1../../../include/Herwig++/MatrixElement/Matchbox/Utility/SpinorHelicity.h:95:12: error: use of overloaded operator '*=' is ambiguous (with operand types 'std::complex >' and 'Complex' (aka 'complex')) Log
qtmobility 1.2.0-3qmessagecontentcontainer_qmf.cpp:65:29: error: use of overloaded operator '==' is ambiguous (with operand types 'QMailMessagePartContainer::Location' and 'const QMailMessagePart::Location') Log
tango 8.1.2c+dfsg-5../../../../lib/cpp/server/w_attribute.cpp:3421:11: error: call to 'isnan' is ambiguous Log

4 errors