Use the 3-argument forms of AC_DEFINE* macros.

[gnulib.git] / m4 / jm-mktime.m4

diff --git a/m4/jm-mktime.m4 b/m4/jm-mktime.m4
index af36117..abdc21d 100644 (file)
--- a/m4/jm-mktime.m4
+++ b/m4/jm-mktime.m4
@@ -1,11 +1,8 @@
-#serial 3
+#serial 4
 
 dnl From Jim Meyering.
-dnl If you use this macro in a package, you should
-dnl add the following two lines to acconfig.h:
-dnl   /* Define to rpl_mktime if the replacement function should be used.  */
-dnl   #undef mktime
-dnl
+dnl A wrapper around jm_AM_FUNC_MKTIME.
+
 AC_DEFUN(jm_FUNC_MKTIME,
 [AC_REQUIRE([jm_AM_FUNC_MKTIME])dnl
 
@@ -13,6 +10,7 @@ AC_DEFUN(jm_FUNC_MKTIME,
  AC_CHECK_FUNCS(localtime_r)
 
  if test $jm_am_cv_func_working_mktime = no; then
-   AC_DEFINE_UNQUOTED(mktime, rpl_mktime)
+   AC_DEFINE_UNQUOTED(mktime, rpl_mktime,
+    [Define to gnu_mktime if the replacement function should be used.])
  fi
 ])