@@ -, +, @@ 
 is unavailable
---
 configure.ac             | 6 +-----
 support/nfs/svc_socket.c | 6 ++++++
 2 files changed, 7 insertions(+), 5 deletions(-)
--- a/configure.ac	
+++ a/configure.ac	
@@ -247,9 +247,6 @@ AC_CHECK_FUNC([connect], ,
 AC_CHECK_FUNC([getaddrinfo], ,
               [AC_MSG_ERROR([Function 'getaddrinfo' not found.])])
 
-AC_CHECK_FUNC([getrpcbynumber], ,
-              [AC_MSG_ERROR([Function 'getrpcbynumber' not found.])])
-
 AC_CHECK_FUNC([getservbyname], ,
               [AC_MSG_ERROR([Function 'getservbyname' not found.])])
 
@@ -408,12 +405,11 @@ AC_FUNC_STAT
 AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([alarm atexit dup2 fdatasync ftruncate getcwd \
                gethostbyaddr gethostbyname gethostname getmntent \
-               getnameinfo getrpcbyname getifaddrs \
+               getnameinfo getrpcbyname getrpcbynumber getrpcbynumber_r getifaddrs \
                gettimeofday hasmntopt inet_ntoa innetgr memset mkdir pathconf \
                ppoll realpath rmdir select socket strcasecmp strchr strdup \
                strerror strrchr strtol strtoul sigprocmask])
 
-
 dnl *************************************************************
 dnl Check for data sizes
 dnl *************************************************************
--- a/support/nfs/svc_socket.c	
+++ a/support/nfs/svc_socket.c	
@@ -42,8 +42,14 @@ int getservport(u_long number, const char *proto)
 	struct servent servbuf, *servp = NULL;
 	int ret;
 
+#if HAVE_GETRPCBYNUMBER_R
 	ret = getrpcbynumber_r(number, &rpcbuf, rpcdata, sizeof rpcdata,
 				&rpcp);
+#else
+	rpcp = getrpcbynumber(number);
+	ret = 0;
+#endif
+
 	if (ret == 0 && rpcp != NULL) {
 		/* First try name.  */
 		ret = getservbyname_r(rpcp->r_name, proto, &servbuf, servdata,
--