OVS_CHECK_NETLINK
OVS_CHECK_OPENSSL
OVS_CHECK_LOGDIR
-OVS_CHECK_RTNL_LINK_STATS64
OVS_CHECK_PYTHON
OVS_CHECK_PYUIC4
OVS_CHECK_OVSDBMONITOR
OVS_CHECK_SOCKET_LIBS
OVS_CHECK_LINKER_SECTIONS
OVS_CHECK_XENSERVER_VERSION
+OVS_CHECK_GROFF
OVS_ENABLE_OPTION([-Wall])
OVS_ENABLE_OPTION([-Wno-sign-compare])