libbsd / waf: Broken --show-commands support

[Chris Johns]

On 8/07/2016 6:34 PM, Christian Mauderer wrote:
> 
> I'm currently trying to port pf to libbsd. While doing that, I wanted to
> check some of the compiler calls using the waf configure option
> --show-commands. With the option set, every call went wrong.
> 
> I was able to track the problem down to the patches introduced with the
> long command line support. It seems that the command is joined for
> printing it and than the joined version is given to a python Popen call.
> As far as I understand the python documentation, Popen expects an array.

Thanks for this, yes my change to print the number of options broken the
code.

> The attached patch fixes this by using a temporary variable for the
> string that gets printed. Could you review the patch to check that it
> doesn't break the long command line support again?

I have built libbsd on MinGW64 and it works so this should be tested.

I have updated rtems_waf and libbsd.

Thanks
Chris