symbol database for C++ compiler

Hi all,
do you know about a c++ compiler that builds a database of all symbols
*before* compiling time, such as it knows about all dependencies before
starting to open all header files.
For instance :
#include <windows.h>
void main()
{
    DWORD i;
    // my code that uses i
}
here, the compiler has to parse all windows.h to notice that DWORD = long,
and we know it is a long time for large projects (for instance, when using
STL !)
I tried precompiled headers, and I know it can help, but I am looking for a
"step beyond" to help in reducing compilation time.
I have read Lakos book (large scale C++ projects), and I find very
interesting the concept of insulation. Though, a "database-compiler" can
still improve the system.
Thank you for your answers, and sorry if the subject has been already posted
(then, please give me the references to look at the previous answers).
Elie Khoury

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