Avoid using uoip:os-cond
Avoid using uoip:os-cond

It's only present in newer ASDFs and is basically a COND with
macroexpansion-time test evaluation. The code that uses it is not
performance critical.
cffi/cffi,attila-lendvai/cffi,dkochmanski/cffi,mcna/cffi,mcna/cffi,cffi/cffi,stassats/cffi,dkochmanski/cffi,cffi/cffi,3b/cffi,stassats/cffi,3b/cffi,3b/cffi,stassats/cffi,dkochmanski/cffi,attila-lendvai/cffi