Logged In: NO 

Turns out the _DEBUG is defined when using the /MDd
compiler option.

We have painstakingly worked out our build system to
deal with the library conflicts you mention. If I
understand what you're saying, these are the rules:

Linking with debug CRT -> link with python_d
Linking with python_d -> compile client code with DEBUG

The first rule is thanks to MS. The second rule is to
get internal object layouts to match up.

Is this right?