dnl
dnl ====================================================================
dnl
-AC_DEFUN(AC_COMPILE_CHECK_SIZEOF,
+AC_DEFUN([AC_COMPILE_CHECK_SIZEOF],
[changequote(<<, >>)dnl
dnl The name to #define.
define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
dnl
dnl --------------------------------------------------------------------
dnl OpenLDAP version of STDC header check w/ EBCDIC support
-AC_DEFUN(OL_HEADER_STDC,
+AC_DEFUN([OL_HEADER_STDC],
[AC_REQUIRE_CPP()dnl
AC_REQUIRE([OL_CPP_EBCDIC])dnl
AC_CACHE_CHECK([for ANSI C header files], ol_cv_header_stdc,
dnl Early MIPS compilers (used in Ultrix 4.2) don't like
dnl "int x; int *volatile a = &x; *a = 0;"
dnl -- borrowed from PDKSH
-AC_DEFUN(OL_C_VOLATILE,
+AC_DEFUN([OL_C_VOLATILE],
[AC_CACHE_CHECK(if compiler understands volatile, ol_cv_c_volatile,
[AC_TRY_COMPILE([int x, y, z;],
[volatile int a; int * volatile b = x ? &y : &z;
dnl
dnl ====================================================================
dnl Define sig_atomic_t if not defined in signal.h
-AC_DEFUN(OL_TYPE_SIG_ATOMIC_T,
+AC_DEFUN([OL_TYPE_SIG_ATOMIC_T],
[AC_CACHE_CHECK(for sig_atomic_t, ol_cv_type_sig_atomic_t,
[AC_TRY_COMPILE([#include <signal.h>], [sig_atomic_t atomic;],
ol_cv_type_sig_atomic_t=yes, ol_cv_type_sig_atomic_t=no)])
dnl
dnl ====================================================================
dnl Define socklen_t if not defined in sys/types.h or sys/socket.h
-AC_DEFUN(OL_TYPE_SOCKLEN_T,
+AC_DEFUN([OL_TYPE_SOCKLEN_T],
[AC_CACHE_CHECK(for socklen_t, ol_cv_type_socklen_t,
[AC_TRY_COMPILE([
#ifdef HAVE_SYS_TYPES_H
dnl
dnl ====================================================================
dnl Define inet_aton is available
-AC_DEFUN(OL_FUNC_INET_ATON,
+AC_DEFUN([OL_FUNC_INET_ATON],
[AC_CACHE_CHECK([for inet_aton()], ol_cv_func_inet_aton,
[AC_TRY_LINK([
#ifdef HAVE_SYS_TYPES_H
dnl
dnl ====================================================================
dnl check no of arguments for ctime_r
-AC_DEFUN(OL_FUNC_CTIME_R_NARGS,
+AC_DEFUN([OL_FUNC_CTIME_R_NARGS],
[AC_CACHE_CHECK(number of arguments of ctime_r, ol_cv_func_ctime_r_nargs,
[AC_TRY_COMPILE([#include <time.h>],
[time_t ti; char *buffer; ctime_r(&ti,buffer,32);],
dnl
dnl --------------------------------------------------------------------
dnl check return type of ctime_r()
-AC_DEFUN(OL_FUNC_CTIME_R_TYPE,
+AC_DEFUN([OL_FUNC_CTIME_R_TYPE],
[AC_CACHE_CHECK(return type of ctime_r, ol_cv_func_ctime_r_type,
[AC_TRY_COMPILE([#include <time.h>],
[extern int (ctime_r)();],
])dnl
dnl ====================================================================
dnl check no of arguments for gethostbyname_r
-AC_DEFUN(OL_FUNC_GETHOSTBYNAME_R_NARGS,
+AC_DEFUN([OL_FUNC_GETHOSTBYNAME_R_NARGS],
[AC_CACHE_CHECK(number of arguments of gethostbyname_r,
ol_cv_func_gethostbyname_r_nargs,
[AC_TRY_COMPILE([#include <sys/types.h>
])dnl
dnl
dnl check no of arguments for gethostbyaddr_r
-AC_DEFUN(OL_FUNC_GETHOSTBYADDR_R_NARGS,
+AC_DEFUN([OL_FUNC_GETHOSTBYADDR_R_NARGS],
[AC_CACHE_CHECK(number of arguments of gethostbyaddr_r,
[ol_cv_func_gethostbyaddr_r_nargs],
[AC_TRY_COMPILE([#include <sys/types.h>
])
dnl ====================================================================
dnl check for msg_accrights in msghdr
-AC_DEFUN(OL_MSGHDR_MSG_ACCRIGHTS,
+AC_DEFUN([OL_MSGHDR_MSG_ACCRIGHTS],
[AC_CACHE_CHECK(for msg_accrights in msghdr, ol_cv_msghdr_msg_accrights,
[AC_TRY_COMPILE([#include <sys/socket.h>],
[struct msghdr m; m.msg_accrightslen=0],
])dnl
dnl ====================================================================
dnl check for cmsghdr
-AC_DEFUN(OL_MSGHDR_MSG_CONTROL,
+AC_DEFUN([OL_MSGHDR_MSG_CONTROL],
[AC_CACHE_CHECK(for msg_control in msghdr, ol_cv_msghdr_msg_control,
[AC_TRY_COMPILE([#include <sys/socket.h>],
[struct msghdr m; m.msg_control=(struct cmsghdr *)0],