MacOS X:
pass the -framework option and its parameter as two separate arguments,
i.e. ["-framework", "Foo"] instead of ["-framework Foo"].
This is necessary because all options passed to gcc are now quoted
(since rev. 1.88 of SysTools.lhs), and "-framework Foo" is not a valid
option (while "-framework" "Foo" is).

MERGE TO STABLE