Hello I compiled xrootd from the HEAD this morning (~7 am, SLAC time). It compiled fine but when trying to run xrootd I get the following error messages (linux and Solaris): # Linux 070731 09:23:04 001 XrootdConfig: /u1/wilko/xrdTest/prod/lib/libXrdOfs.so: undefined symbol: _ZN12XrdSysXSLock4LockE13XrdSysXS_Type opening shared library /u1/wilko/xrdTest/prod/lib/libXrdOfs.so # Solaris 070731 09:17:38 001 XrootdConfig: ld.so.1: xrootd: fatal: relocation error: file /u1/wilko/xrdTest/prod/lib/libXrdOfs.so: symbol __1cMXrdSysXSLock2T6M_v_: referenced symbol not found opening shared library /u1/wilko/xrdTest/prod/lib/libXrdOfs.so Cheers, Wilko