-dnl Checks for struct rtnl_link_stats64.
-dnl
-dnl (OVS checks for this structure in both kernel and userspace headers. This
-dnl is not redundant, because the kernel and userspace builds have completely
-dnl different include paths. It is possible for the kernel to have this
-dnl structure but not userspace, and vice versa.)
-AC_DEFUN([OVS_CHECK_RTNL_LINK_STATS64],
- [AC_REQUIRE([OVS_CHECK_NETLINK])
- if test $HAVE_NETLINK = yes; then
- AC_CHECK_MEMBER(
- [struct rtnl_link_stats64.tx_packets],
- [AC_DEFINE([HAVE_RTNL_LINK_STATS64], [1],
- [Define to 1 if <linux/if_link.h> defines
- struct rtnl_link_stats64.])],
- [], [#include <sys/socket.h> /* Provides sa_family_t. */
-#include <linux/if_link.h>
-])
+dnl Checks for --enable-cache-time and defines CACHE_TIME if it is specified.
+AC_DEFUN([OVS_CHECK_CACHE_TIME],
+ [AC_ARG_ENABLE(
+ [cache-time],
+ [AC_HELP_STRING([--enable-cache-time],
+ [Override time caching default (for testing only)])],
+ [case "${enableval}" in
+ (yes) cache_time=1;;
+ (no) cache_time=0;;
+ (*) AC_MSG_ERROR([bad value ${enableval} for --enable-cache-time]) ;;
+ esac
+ AC_DEFINE_UNQUOTED([CACHE_TIME], [$cache_time],
+ [Define to 1 to enable time caching, to 0 to disable time caching, or
+ leave undefined to use the default (as one should
+ ordinarily do).])])])
+
+dnl Checks for ESX.
+AC_DEFUN([OVS_CHECK_ESX],
+ [AC_CHECK_HEADER([vmware.h],
+ [ESX=yes],
+ [ESX=no])
+ AM_CONDITIONAL([ESX], [test "$ESX" = yes])
+ if test "$ESX" = yes; then
+ AC_DEFINE([ESX], [1], [Define to 1 if building on ESX.])