Fixed hangup problem in net_clear() on HPUX and Windows. 


Build-tools/Do-compile:
  Added --bdb-max-lock=60000 option when testing BDB tables.
configure.in:
  Fix for HPUX to not use -lc_r library.
vio/viosocket.c:
  Fixed hangup problem in net_clear() on HPUX and Windows.