Re: proposed change for depout.m4

[Jim Meyering]

Thanks!  You're right.  I've just confirmed that on a
SunOS4.1.4 system its /usr/ucb/head.

Here's a better patch:

        * m4/depout.m4: Don't use `head -1'; it's no longer portable.
        Use `sed 1q' instead.

Index: m4/depout.m4
===================================================================
RCS file: /cvs/automake/automake/m4/depout.m4,v
retrieving revision 1.10
diff -u -p -u -p -r1.10 depout.m4
--- depout.m4   2001/12/30 20:29:14     1.10
+++ depout.m4   2002/02/17 19:34:54
@@ -1,6 +1,6 @@
 # Generate code to set up dependency tracking.   -*- Autoconf -*-
 
-# Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
+# Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -25,7 +25,7 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS
 [for mf in $CONFIG_FILES; do
   # Strip MF so we end up with the name of the file.
   mf=`echo "$mf" | sed -e 's/:.*$//'`
-  if (head -1 $mf | fgrep 'generated by automake') > /dev/null 2>&1; then
+  if (sed 1q $mf | fgrep 'generated by automake') > /dev/null 2>&1; then
     dirpart=`AS_DIRNAME("$mf")`
   else
     dirpart=

Ralf Corsepius <address@hidden> wrote:
> Am Son, 2002-02-17 um 18.19 schrieb Jim Meyering:
>> Does anyone know of a system for which `head -n1' doesn't work
>> the same as the traditional `head -1'?
>
>>From SunOS4's manpage (dated ~1990):
...