How to "OR" multiple macros in conditional build rules

[peiwai]

Hi,

I would like to "OR" multiple macros in the conditional build rule, so that the execution of an action can be depended on a collection of macros. For example, either Complete_Build "OR" Partial_Build is defined.

Is this possible? Would you please show me the syntax? I found that if I put "," bewteen macros, I can "AND" the macros. However, I haven't found a way to "OR" them.

Also, how can I flip the value of a macro between true and false. For example "Not" Complete_Build?

Thank you very much,
Roy