Really fix accrights test.

build/openldap.m4

@@ -1219,12 +1219,12 @@ AC_DEFUN([OL_SASL_COMPAT],
 dnl ====================================================================
 dnl check for msg_accrights in msghdr
 AC_DEFUN(OL_MSGHDR_MSG_ACCRIGHTS,
- [AC_CACHE_CHECK(msg_accrights in msghdr, ol_cv_msg_accrights,
+ [AC_CACHE_CHECK(msg_accrights in msghdr, ol_cv_msghdr_msg_accrights,
    [AC_TRY_COMPILE([#include <sys/socket.h>],
 		[struct msghdr m; m.msg_accrightslen=0],
 		ol_cv_msghdr_msg_accrights=yes, ol_cv_msghdr_msg_accrights=no)
 	])
-  if test $ol_cv_func_ctime_r_type = "int" ; then
+  if test $ol_cv_msghdr_msg_accrights = "yes" ; then
 	AC_DEFINE(HAVE_MSGHDR_MSG_ACCRIGHTS,1,
 		[define if struct msghdr has msg_accrights])
   fi