Merge pull request #947 from rleigh-dundee/cmake-ice2

Cpp: Update to match the FindIce macro behaviour
merge develop -Dorg -Ssuccess-only

Repository: openmicroscopy/ome-documentation
Updating 3d2a5a2..371b2ca
Previously merged:
  # PR 947 rleigh-dundee 'Cpp: Update to match the FindIce macro behaviour'

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