[CMake] Incrementing build as target

[Andy Cedilnik]

Hi Jorgen,

The problem with this approach is that it will rebuild every time you 
type make.
Also, at this point there is no way to increment a number.

What you can do is to write a program that will do what you want and 
then use a custom command to run this program.

       Andy

Jorgen Bodde wrote:

> Hi, it would be a nice idea to let the CMakeScript increment a build 
> number automatically. I would think something like;
>
> buildver.txt - contains an integer that is read, incremented and written
> the buildver.txt is written to a file called buildver.h using a 
> buildver.in like;
>
> buildver.in:
>
> // Contains build version
> #define BUILD_VERSION @BUILDVER@
>
> buildver.h
>
> // Contains build version
> #define BUILD_VERSION 325
>
> and this file is included in the main app. Is this in some way 
> possible? It would be very neat .. regards,
>
> - Jorgen
>
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