[Python-modules-team] Bug#740159: Add missing cpp dependency

[Stefano Rivera]

Hi Martin (2014.02.26_15:04:10_+0200)
> | RuntimeError: Unable to invoke 'cpp'.  Make sure its path was passed correctly
> | Original error: [Errno 2] No such file or directory

Ah yes, I test with build chroots, which have cpp installed.

> Simple fix attached which adds the missing cpp binary dependency.

In this case, cpp probably shouldn't be a binary dependency, it's only used in
non-default code paths (and tests).

I imagine the biggest user of pycparser is cffi, and it doesn't require
cpp. (Well, it requires gcc at build time, but that's another story)

So, I think I'll add a Suggests, and a ADT dependency.

SR

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Stefano Rivera
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