On 09/29/2011 09:05 PM, Ian Lance Taylor wrote: > The command which creates libgroupsock.so is not including > GroupsockHelper, so it seems unsurprising that the .so does not define > readSocket. doh! It was a missing \ in Makefile.am, thus a bunch of files were not compiled in the library... It works now, thank you a lot for the suggestion! Ottavio