Hi, I've changed the test-backend, that way, that the reader-process now terminates, when running as thread. This change should allow to run the test-backend on MacOSX without patching the sanei_thread lib. Mattias, you might can check this. By removing your patch from the MacOSX SANE-version, the plustek backend and probably others should also run again without hanging after a scan....
Ciao, Gerhard