Hi,

There is /FORCE:MULTIPLE, but that will still give you linker warnings.

There is a simple trick however.
Sometime ago I had to port an ANSI CPP program from linux to windows.
Apart from a few pitfalls, it all went right, but I had to change a few
functions that had to do with
file path parsing (\ instead of / etc)

In order to avoid modifying the original source, I added a header and source
file to the project with my own
implementation of those files. I added the headers of the original source
file to my own header, and after those headers I added the following macro:
#define old_function    new_function

where old function was the function originally called in the original
sources. new_function was my implementation.

the last thing was to 'Force include' my header file into the original
source file via a compiler option.

As a result of this, the preprocessor replaced all old_function calls with
new_function calls without modifying
a single line in the original source file.