construct to do 'if not' in rpm specs

[Jesse Keating]

I need to do a construct in an rpm spec:

if value
  if not othervalue
    stuff
  endif
endif

but my google skills are lacking finding the construct to do a generic 'if 
not' in a spec file...

-- 
Jesse Keating
Release Engineer: Fedora
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/fedora-devel-list/attachments/20070601/23cc90af/attachment.sig>