New macro define-structure-conversion
New macro define-structure-conversion

New macro define-structure-conversion defines methods
translate-to-foreign, translate-from-foreign, free-translated-object
for a foreign structure.  Uncompiled and untested.

dkochmanski/cffi,attila-lendvai/cffi,dkochmanski/cffi,stassats/cffi,3b/cffi,stassats/cffi,dkochmanski/cffi,cffi/cffi,3b/cffi,stassats/cffi,cffi/cffi,cffi/cffi,3b/cffi,attila-lendvai/cffi,mcna/cffi,mcna/cffi