netperf-2.4.5 build failure in FC14

On Fedora Core 14 only. Not seen on Ubuntu 10.4 or 8.04

configure.ac:60: error: possibly undefined macro: AC_CHECK_SA_LEN
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.

Fixed by:

diff --git a/netperf-2.4.5/configure.ac b/netperf-2.4.5/configure.ac
index 63ba3f1..8a38c40 100644
--- a/netperf-2.4.5/configure.ac
+++ b/netperf-2.4.5/configure.ac
@@ -57,7 +57,7 @@ AC_DECL_H_ERRNO
AC_STRUCT_SOCKADDR_STORAGE
AC_HEADER_TIME
AC_HEADER_STDBOOL
-AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len)
+#AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len)

# Checks for library functions.
# AC_FUNC_ERROR_AT_LINE