[cffi-devel] Using preprocessor symbol as argument to :count in cstruct

[Hugo Duncan]

Hi,

Attatched is a simple (5-line) patch bundle that allows the use of a
preprocessor symbol as the argument to the :count keyword in a cstruct.
This allows grovelling of structs that contain arrays whose size is
specified by a #defined value.  Previously, non-numeric arguments were
ignored.

First time using darcs for anything other than retrieval, so I hope the  
attached is in a useable form.

Hugo
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