another cmake problem on osx

[Brad King]

Boudewijn Rempt wrote:
> macro_optional_find_package(OpenEXR)
[snip]
>    target_link_libraries(exrthumbnail ${KDE4_KIO_LIBS} ${OPENEXR_LIBRARIES})

Please add a line just before the link command:

   message("OPENEXR_LIBRARIES=[${OPENEXR_LIBRARIES}]")

to see the exact value.  Does it have a full path to the library?

Thanks,
-Brad