XCB_CHECK_DOXYGEN()
+AC_CHECK_FUNC(getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [getaddrinfo() function is available])], )
+
case $host_os in
# darwin through Snow Leopard has poll() but can't be used to poll character devices.
darwin@<:@789@:>@*|darwin10*) ;;