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+?RCS: $Id$
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?RCS: You may redistribute only under the terms of the Artistic License,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS: $Log: cf_who.U,v $
+?RCS: Revision 1997/02/28 15:28:50 ram
+?RCS: patch61: new computation method avoiding use of temporary file
+?RCS: Revision 1994/05/06 14:42:34 ram
+?RCS: patch23: login name now computed the hard way
+?RCS: Revision 3.0 1993/08/18 12:05:32 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?X: Oldconfig dependency is there to ensure computation occurs after old values
+?X: from have been loaded, so that we can supersede them.
+?MAKE:cf_time cf_by: date Oldconfig
+?MAKE: -pick add $@ %<
+?S: Holds the output of the "date" command when the configuration file was
+?S: produced. This is used to tag both and config_h.SH.
+?S: Login name of the person who ran the Configure script and answered the
+?S: questions. This is used to tag both and config_h.SH.
+: who configured the system
+?X: Ensure English date -- Jarkko Hietaniemi
+cf_time=`LC_ALL=C; LANGUAGE=C; export LC_ALL; export LANGUAGE; $date 2>&1`
+?X: Leave a white space between first two '(' for ksh. The sub-shell is needed
+?X: on some machines to avoid the error message when logname is not found; e.g.
+?X: on SUN-OS 3.2, (logname || whoami) would not execute whoami if logname was
+?X: not found. Sigh!
+?X: Convex had a broken logname executable which returned a non-zero status,
+?X: and that broke the previous:
+?X: cf_by=`( (logname) 2>/dev/null || whoami) 2>&1`
+?X: Switch to emergency mode... -- RAM, 19/04/94
+?X: Parentheses needed to avoid error message if the program does not exist.
+?X: Uses case instead of $test so it can be put before $test is defined.
+?X: Don't redirect to a file because on Ultrix (under script?) logname
+?X: outputs a blank line first. This method will apparently work.
+case "$cf_by" in
+ cf_by=`(logname) 2>/dev/null`
+ case "$cf_by" in
+ "")
+ cf_by=`(whoami) 2>/dev/null`
+ case "$cf_by" in
+ "") cf_by=unknown ;;
+ esac ;;
+ esac ;;