> I'm not sure how to trace the load process in OSX. Also you can look If you mean dynamic lib loading, you can set the DYLD_PRINT_LIBRARIES shell variable: DYLD_PRINT_LIBRARIES=1 export DYLD_PRINT_LIBRARIES some other useful dylib variables: DYLD_FRAMEWORK_PATH DYLD_FALLBACK_FRAMEWORK_PATH DYLD_LIBRARY_PATH DYLD_FALLBACK_LIBRARY_PATH