patch applied (packages/unix): Fix the build when CONST_SIGPOLL == -1

[Ian Lynagh]

Sat Aug 23 09:03:46 PDT 2008  Ian Lynagh <igloo at earth.li>
  * Fix the build when CONST_SIGPOLL == -1
  We were defining, but not using, sigPOLL

    M ./System/Posix/Signals.hs +2

View patch online:
http://darcs.haskell.org/packages/unix/_darcs/patches/20080823160346-3fd76-327a1b919b55cf5bc8b99e84a2fa78c319a3e7e6.gz