Fixed compilation problem with gcc 4.0.1 (submitted by Jeff Clifford).
Fixed compilation problem with gcc 4.0.1 (submitted by Jeff Clifford).

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