[Openexr-devel] undefined symbol: _ZN9IlmThread5MutexD1Ev on exit

[Paul Miller]

I have a report of this happening on Linux (Fedora 15) during exit of my 
application. The full error is a symbol lookup error in libIlmImf.so.7: 
undefined symbol: ZN9IlmThread5MutexD1Ev

EXR support is implemented in a plugin, so I expect this is happening 
when the plugin is unloaded during exit. But it doesn't happen if an EXR 
image is never loaded.

Any ideas what could cause this?