[p4] Changelist number in versions

[Mark Ridgwell]

Ivey, William wrote:
>> You might want to put your output in a different
>> location that the source, that way, all the builds you do won't
>> "pollute" your source tree.
>>     
>
> That's what we do. It goes under a special include directory that
> is not under the source tree. (In general, although a given project
> may have special requirements which just can't be met that way.)
>   

We tend to put the version beside the source tree and update/check that 
in as the 1st step of the build. e.g

     Product\Source\....
     Product\Versioning\...

 From there we sync the whole source to that point in time, and run a 
few utilities that process the version file and modify the checked in 
source e.g

assemblyinfo.cs -> changes the product version and file versions with 
the ones in verstamp.h.
*.vbp ->Changes product version etc
C++ - nothing needed - version information is included in the resources 
and includes verstamp.h to get the information.

There is a lot more in the verstamp.h than just version numbers e.g. 
defines for

Build type -> Internal\External
Language(s) supported
Product Name
Licensing information i.e. which web service to call to request licenses

So it is considered more of an integral part of the build.

Mark