[PATCH] gen-version.sh: check if git is available before trying to call it

[Lukas Fleischer]

On Sat, 01 Feb 2014 at 16:10:44, Fabien C. wrote:
> [...]
> if test "$(git rev-parse --git-dir 2>/dev/null)" = '.git'
> then
>         V=$(git describe --abbrev=4 HEAD 2>/dev/null)
> fi
> 
> I think this one solves the above problems. 

I personally like this approach. Jason?

> 
> Regards, 
> Fabien 
> 
> [1]: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/command.html
> 
> 
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