Other const in const structure definition

Hi all,

I have a small issue with a definition with arm C compiler regarding constants.
In an assembly code I define a constant with :

Version EQU 0x01000100

In my main C file I import this const by :

extern unsigned int const Version;

Now my problem is to put this const in another const based on a struct :

const myType titi = { ..., // blabla Version, ... // blabla
};

The compiler gives an error :
Main.c(60): error: #28: expression must have a constant value
But it's a constant !!!

Since my goal is to avoid multiple definition of same constant in severaal files, I'm looking for a solution to solve this problem.

Thanks by advance !