Hi Wes, > Or why not... Nope, doesn't work. _OLD_MYDEF (which is a reserved identifier... better to use OLD_MYDEF_) does not get the value held by MYDEF, rather _OLD_MYDEF gets the value MYDEF itself, which is then later expanded at the point of use based on what the value MYDEF holds at that time. I hate the preprocessor. (One of the points in favor of Java and D Programming Language, in my opinion.) --Eljay
