[CMake] set_target_properties not setting COMPILE_DEFINITIONS?

[David Doria]

> You might want to try running cmake --trace and see if something odd is
> happening when it is run.
>
> -Bill
>

Here is the output of the trace:
http://pastebin.com/MfTcNHFE

It looks like the definitions list is being created and applied to the
target, does it not? (see the last 10 lines of that output).

What I don't see in the trace is the other definitions that I DO see
in the make VERBOSE output (like -D__WXGTK__). Where would these be
added?

David