> Having re-bootstrapped the system, a new problem has occurred: I can't
> build any package that includes C++ code.

I've now fixed this by altering /mk/compiler.mk, changing:

ALL_ENV+=         CXXCPP="${CPP:Q} -E"

to

ALL_ENV+=          CXXCPP="CC -E"

... but this still suggests that my setting for $CPP is wrong, I guess?

Cheers,

stuart