# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1125002565 0
# Node ID 44e334d2586c1cc01fcdba6613cb129579d9c520
# Parent  c3bf2ea44695c5d36f18845e81731cb9faacfe1b
Add comment.

diff --git a/m4/ChangeLog b/m4/ChangeLog
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,8 @@
+2005-08-25  Bruno Haible  <bruno@clisp.org>
+
+	* minmax.m4 (gl_MINMAX_IN_HEADER): Add comments.
+	Patch from Stepan Kasal <kasal@ucw.cz>.
+
 2005-08-24  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* regex.m4 (gl_REGEX): Use POSIX-compliant spellings when testing
diff --git a/m4/minmax.m4 b/m4/minmax.m4
--- a/m4/minmax.m4
+++ b/m4/minmax.m4
@@ -1,4 +1,4 @@
-# minmax.m4 serial 1
+# minmax.m4 serial 2
 dnl Copyright (C) 2005 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -17,6 +17,8 @@
 ])
 
 dnl gl_MINMAX_IN_HEADER(HEADER)
+dnl The parameter has to be a literal header name; it cannot be macro,
+dnl nor a shell variable.
 AC_DEFUN([gl_MINMAX_IN_HEADER],
 [
   define([header],[translit([$1],[./-],