David Abrahams wrote:

...

This seems _very_ strange to me because two-phase lookup should also be turned on for Intel 8, so I don't understand why all the tests pass on this compiler.

Intel for windows has the "MSVC bug compatibility" switch turned on.

On linux it actually detects 2-phase problems, except insofar as it's trying to emulate GCC bugs :(

Ahhh - mystery solved - thanks for that. Robert Ramey