dnl On the NeXT, #including <utime.h> doesn't give you a definition for
dnl struct utime, unless you #define _POSIX_SOURCE.
-AC_DEFUN(GUILE_STRUCT_UTIMBUF, [
+AC_DEFUN([GUILE_STRUCT_UTIMBUF], [
AC_CACHE_CHECK([whether we need POSIX to get struct utimbuf],
guile_cv_struct_utimbuf_needs_posix,
[AC_TRY_CPP([
dnl
dnl GUILE_NAMED_CHECK_FUNC(FUNCTION, TESTNAME,
dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
-AC_DEFUN(GUILE_NAMED_CHECK_FUNC,
+AC_DEFUN([GUILE_NAMED_CHECK_FUNC],
[AC_MSG_CHECKING([for $1])
AC_CACHE_VAL(ac_cv_func_$1_$2,
[AC_TRY_LINK(