

* Fix for compilers with missing ios_base.  (Drew Hess)

oglops/OpenEXR,oglops/PyIlmBase,oglops/OpenEXR,oglops/PyIlmBase,oglops/PyIlmBase,oglops/OpenEXR,oglops/IlmBase,oglops/IlmBase,oglops/PyIlmBase,oglops/IlmBase