Add an exists_if field to generated META file (Closes: #694)
Add an exists_if field to generated META file (Closes: #694)

Ignore-this: df5410eedc227b1e2a8cdf45c7df765

darcs-hash:20100910171945-a43a9-7a806715346ebad44ce1ecdec71d827e8f952736

avsm/oasis-old,jpdeplaix/oasis,diml/oasis,jpdeplaix/oasis,gerdstolpmann/oasis,gerdstolpmann/oasis,RadicalZephyr/oasis,gerdstolpmann/oasis,avsm/oasis-mirror,jpdeplaix/oasis,avsm/oasis-old,Chris00/oasis,avsm/oasis-mirror,diml/oasis,madroach/oasis,RadicalZephyr/oasis,madroach/oasis,avsm/oasis-mirror,Chris00/oasis,avsm/oasis-old,Chris00/oasis