-OVS_RUNDIR=$PWD; export OVS_RUNDIR
-OVS_LOGDIR=$PWD; export OVS_LOGDIR
-OVS_SYSCONFDIR=$PWD; export OVS_SYSCONFDIR
-trap 'kill `cat test-unixctl.py.pid`' 0
-AT_CAPTURE_FILE([$PWD/test-unixctl.py.log])
+OVS_RUNDIR=`pwd`; export OVS_RUNDIR
+OVS_LOGDIR=`pwd`; export OVS_LOGDIR
+OVS_DBDIR=`pwd`; export OVS_DBDIR
+OVS_SYSCONFDIR=`pwd`; export OVS_SYSCONFDIR
+ON_EXIT([kill `cat test-unixctl.py.pid`])
+AT_CAPTURE_FILE([`pwd`/test-unixctl.py.log])