[CMake] how to get the version of a library

[Ralf Habacker]

brice rebsamen schrieb:
> How to know the version of an installed library? My code has #if 
> macros to handle different APIs. So I would need to get the version 
> and set 2 variables (MAJOR and MINOR) and pass them to the compiler (-D).
>
> To be more precise, I am interested in Player/Stage. One way to get 
> the version is to run the player executable. Under linux:
>
> VERSION=`player 2>&1 | grep "Player v" | cut -d' ' -f2`
> this gives "v2.2.0". Then
> MAJOR=`echo $VERSION | cut -d'.' -f2`
> MINOR=`echo $VERSION | cut -d'.' -f3`
>
> I do not particularly need a solution that would work under windows at 
> the moment, but that would be a bonus of course.
There is a win32 api function for this, see 
http://msdn.microsoft.com/en-us/library/ms647003.aspx for more 
informations.

Regards
 Ralf