Quote first argument to AC_DEFUN(); from Elan Ruusamae

aclocal.m4

@@ -10,7 +10,7 @@ dnl checks for programs
 dnl
 dnl check for sendmail in well-known locations
 dnl
-AC_DEFUN(SUDO_PROG_SENDMAIL, [AC_MSG_CHECKING([for sendmail])
+AC_DEFUN([SUDO_PROG_SENDMAIL], [AC_MSG_CHECKING([for sendmail])
 found=no
 for p in "/usr/sbin/sendmail" "/usr/lib/sendmail" "/usr/etc/sendmail" "/usr/ucblib/sendmail" "/usr/local/lib/sendmail" "/usr/local/bin/sendmail"; do
     if test -f "$p"; then
@@ -28,7 +28,7 @@ fi
 dnl
 dnl check for vi in well-known locations
 dnl
-AC_DEFUN(SUDO_PROG_VI, [AC_MSG_CHECKING([for vi])
+AC_DEFUN([SUDO_PROG_VI], [AC_MSG_CHECKING([for vi])
 found=no
 for editor in "/usr/bin/vi" "/bin/vi" "/usr/ucb/vi" "/usr/bsd/vi" "/usr/local/bin/vi"; do
     if test -f "$editor"; then
@@ -46,7 +46,7 @@ fi
 dnl
 dnl check for mv in well-known locations
 dnl
-AC_DEFUN(SUDO_PROG_MV, [AC_MSG_CHECKING([for mv])
+AC_DEFUN([SUDO_PROG_MV], [AC_MSG_CHECKING([for mv])
 found=no
 for p in "/usr/bin/mv" "/bin/mv" "/usr/ucb/mv" "/usr/sbin/mv"; do
     if test -f "$p"; then
@@ -64,7 +64,7 @@ fi
 dnl
 dnl check for bourne shell in well-known locations
 dnl
-AC_DEFUN(SUDO_PROG_BSHELL, [AC_MSG_CHECKING([for bourne shell])
+AC_DEFUN([SUDO_PROG_BSHELL], [AC_MSG_CHECKING([for bourne shell])
 found=no
 for p in "/bin/sh" "/usr/bin/sh" "/sbin/sh" "/usr/sbin/sh" "/bin/ksh" "/usr/bin/ksh" "/bin/bash" "/usr/bin/bash"; do
     if test -f "$p"; then
@@ -82,7 +82,7 @@ fi
 dnl
 dnl check for utmp file
 dnl
-AC_DEFUN(SUDO_PATH_UTMP, [AC_MSG_CHECKING([for utmp file path])
+AC_DEFUN([SUDO_PATH_UTMP], [AC_MSG_CHECKING([for utmp file path])
 found=no
 for p in "/var/run/utmp" "/var/adm/utmp" "/etc/utmp"; do
     if test -r "$p"; then
@@ -100,7 +100,7 @@ fi
 dnl
 dnl Where the log file goes, use /var/log if it exists, else /{var,usr}/adm
 dnl
-AC_DEFUN(SUDO_LOGFILE, [AC_MSG_CHECKING(for log file location)
+AC_DEFUN([SUDO_LOGFILE], [AC_MSG_CHECKING(for log file location)
 if test -n "$with_logpath"; then
     AC_MSG_RESULT($with_logpath)
     SUDO_DEFINE_UNQUOTED(_PATH_SUDO_LOGFILE, "$with_logpath")
@@ -121,7 +121,7 @@ fi
 dnl
 dnl Where the timestamp files go.
 dnl
-AC_DEFUN(SUDO_TIMEDIR, [AC_MSG_CHECKING(for timestamp file location)
+AC_DEFUN([SUDO_TIMEDIR], [AC_MSG_CHECKING(for timestamp file location)
 timedir="$with_timedir"
 if test -z "$timedir"; then
     for d in /var/db /var/lib /var/adm /usr/adm; do
@@ -139,7 +139,7 @@ dnl
 dnl Where the I/O log files go, use /var/log/sudo-io if
 dnl /var/log exists, else /{var,usr}/adm/sudo-io
 dnl
-AC_DEFUN(SUDO_IO_LOGDIR, [
+AC_DEFUN([SUDO_IO_LOGDIR], [
     AC_MSG_CHECKING(for I/O log dir location)
     if test "${with_iologdir-yes}" != "yes"; then
 	iolog_dir="$with_iologdir"
@@ -160,7 +160,7 @@ dnl
 dnl SUDO_CHECK_TYPE(TYPE, DEFAULT)
 dnl XXX - should require the check for unistd.h...
 dnl
-AC_DEFUN(SUDO_CHECK_TYPE,
+AC_DEFUN([SUDO_CHECK_TYPE],
 [AC_REQUIRE([AC_HEADER_STDC])dnl
 AC_MSG_CHECKING(for $1)
 AC_CACHE_VAL(sudo_cv_type_$1,
@@ -181,31 +181,31 @@ fi
 dnl
 dnl Check for size_t declation
 dnl
-AC_DEFUN(SUDO_TYPE_SIZE_T,
+AC_DEFUN([SUDO_TYPE_SIZE_T],
 [SUDO_CHECK_TYPE(size_t, int)])
 
 dnl
 dnl Check for ssize_t declation
 dnl
-AC_DEFUN(SUDO_TYPE_SSIZE_T,
+AC_DEFUN([SUDO_TYPE_SSIZE_T],
 [SUDO_CHECK_TYPE(ssize_t, int)])
 
 dnl
 dnl Check for dev_t declation
 dnl
-AC_DEFUN(SUDO_TYPE_DEV_T,
+AC_DEFUN([SUDO_TYPE_DEV_T],
 [SUDO_CHECK_TYPE(dev_t, int)])
 
 dnl
 dnl Check for ino_t declation
 dnl
-AC_DEFUN(SUDO_TYPE_INO_T,
+AC_DEFUN([SUDO_TYPE_INO_T],
 [SUDO_CHECK_TYPE(ino_t, unsigned int)])
 
 dnl
 dnl check for working fnmatch(3)
 dnl
-AC_DEFUN(SUDO_FUNC_FNMATCH,
+AC_DEFUN([SUDO_FUNC_FNMATCH],
 [AC_MSG_CHECKING([for working fnmatch with FNM_CASEFOLD])
 AC_CACHE_VAL(sudo_cv_func_fnmatch,
 [rm -f conftestdata; > conftestdata
@@ -255,7 +255,7 @@ AC_DEFUN([SUDO_FUNC_UNSETENV_VOID],
 dnl
 dnl check for sa_len field in struct sockaddr
 dnl
-AC_DEFUN(SUDO_SOCK_SA_LEN, [
+AC_DEFUN([SUDO_SOCK_SA_LEN], [
     AC_CHECK_MEMBER([struct sockaddr.sa_len], 
 	[AC_DEFINE(HAVE_SA_LEN, 1, [Define if your struct sockadr has an sa_len field.])],    
 	[],
@@ -268,7 +268,7 @@ dnl check for max length of uid_t in string representation.
 dnl we can't really trust UID_MAX or MAXUID since they may exist
 dnl only for backwards compatibility.
 dnl
-AC_DEFUN(SUDO_UID_T_LEN,
+AC_DEFUN([SUDO_UID_T_LEN],
 [AC_REQUIRE([AC_TYPE_UID_T])
 AC_MSG_CHECKING(max length of uid_t)
 AC_CACHE_VAL(sudo_cv_uid_t_len,
@@ -301,7 +301,7 @@ AC_DEFINE_UNQUOTED(MAX_UID_T_LEN, $sudo_cv_uid_t_len, [Define to the max length
 dnl
 dnl append a libpath to an LDFLAGS style variable
 dnl
-AC_DEFUN(SUDO_APPEND_LIBPATH, [
+AC_DEFUN([SUDO_APPEND_LIBPATH], [
     if test X"$with_rpath" = X"yes"; then
 	case "$host" in
 	    *-*-hpux*)	$1="${$1} -L$2 -Wl,+b,$2"
@@ -321,7 +321,7 @@ dnl
 dnl Determine the mail spool location
 dnl NOTE: must be run *after* check for paths.h
 dnl
-AC_DEFUN(SUDO_MAILDIR, [
+AC_DEFUN([SUDO_MAILDIR], [
 maildir=no
 if test X"$ac_cv_header_paths_h" = X"yes"; then
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT