AC_CHECK_HEADER(valgrind/memcheck.h, [AC_DEFINE(HAVE_VALGRIND)], [])
AH_TEMPLATE(HAVE_EPOLL, [define to enable epoll support])
AC_CHECK_HEADER(valgrind/memcheck.h, [AC_DEFINE(HAVE_VALGRIND)], [])
AH_TEMPLATE(HAVE_EPOLL, [define to enable epoll support])