Automatic macro dependencies

[Harvey Chapman]

Hello all,

I'd like to be able to define a list of macros like (DEBUG_XX, DEBUG_YY) 
and have make detect that a source file needs to be recompiled because 
of a change in that list. These macros are always used with an "#ifdef" 
or  an "#if defined()" style pre-processing directive.

I would appreciate any pointers to solutions.

Thanks,

H.