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#define problem

Dear List,

I have a #define statement somewhere in the kernel code. I'd like to 
redefine it, but use the original value. I did something like this:

#define VAR  12345
...

...
#define VAR_ORIG  VAR
#undef VAR
#define VAR  23456

The problem is very trivial. If I use VAR_ORIG the result will be 23456, 
as it will be replaced by VAR which will be replaced by 23456. How can I 
inform the compiler to evaluate the macro definition in depth during the 
compilation? So I'd like to get the following result:

#define VAR_ORIG  12345
#define VAR  23456

w/o getting macro redeclaration warinig during compilation.

Can I solve this somehow?

TIA && Good byte!
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