Thanks all, and sorry for the delay. I'm installing the following on HEAD and branch-1-9.
(I think any justification of why unset must not be used really belongs to the Autoconf manual.) 2005-06-28 Stepan Kasal <[EMAIL PROTECTED]> Alexandre Duret-Lutz <[EMAIL PROTECTED]> * lib/mdate-sh: Avoid infinite loop with GNU ls when TIME_STYLE is set. * tests/txinfo28.test: Set TIME_STYLE. Report from Vincent Lefevre and James Youngman. Index: THANKS =================================================================== RCS file: /cvs/automake/automake/THANKS,v retrieving revision 1.270 diff -u -r1.270 THANKS --- THANKS 23 Jun 2005 22:19:55 -0000 1.270 +++ THANKS 29 Jun 2005 20:15:59 -0000 @@ -269,6 +269,7 @@ Ulrich Eckhardt [EMAIL PROTECTED] Václav Haisman [EMAIL PROTECTED] Vadim Zeitlin [EMAIL PROTECTED] +Vincent Lefevre Vincent Lefevre <[EMAIL PROTECTED]> Volker Boerchers [EMAIL PROTECTED] Werner John [EMAIL PROTECTED] Werner Koch [EMAIL PROTECTED] Index: lib/mdate-sh =================================================================== RCS file: /cvs/automake/automake/lib/mdate-sh,v retrieving revision 1.17 diff -u -r1.17 mdate-sh --- lib/mdate-sh 14 May 2005 20:28:50 -0000 1.17 +++ lib/mdate-sh 29 Jun 2005 20:15:59 -0000 @@ -1,7 +1,7 @@ #!/bin/sh # Get modification time of a file or directory and pretty-print it. -scriptversion=2005-05-14.22 +scriptversion=2005-06-29.22 # Copyright (C) 1995, 1996, 1997, 2003, 2004, 2005 Free Software # Foundation, Inc. @@ -59,7 +59,15 @@ LC_TIME=C export LC_TIME -save_arg1="$1" +# GNU ls changes its time format in response to the TIME_STYLE +# variable. Since we cannot assume `unset' works, revert this +# variable to its documented default. +if test "${TIME_STYLE+set}" = set; then + TIME_STYLE=posix-long-iso + export TIME_STYLE +fi + +save_arg1=$1 # Find out how to get the extended ls output of a file or directory. if ls -L /dev/null 1>/dev/null 2>&1; then Index: tests/txinfo28.test =================================================================== RCS file: /cvs/automake/automake/tests/txinfo28.test,v retrieving revision 1.3 diff -u -r1.3 txinfo28.test --- tests/txinfo28.test 14 May 2005 20:28:56 -0000 1.3 +++ tests/txinfo28.test 29 Jun 2005 20:16:00 -0000 @@ -1,5 +1,5 @@ #! /bin/sh -# Copyright (C) 2002, 2003 Free Software Foundation, Inc. +# Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. # # This file is part of GNU Automake. # @@ -27,6 +27,11 @@ set -e +# This setting, when honored by GNU ls, used to cause an infinite loop +# in mdate-sh. +TIME_STYLE="+%Y-%m-%d %H:%M:%S" +export TIME_STYLE + echo AC_OUTPUT >> configure.in cat > Makefile.am << 'END' -- Alexandre Duret-Lutz