From 8bfc5756fb68e0b13d7e7c0073ad5b9a4790d1b6 Mon Sep 17 00:00:00 2001
From: rmanfredi <rmanfredi@190e5f8e-a817-0410-acf6-e9863daed9af>
Date: Thu, 24 Aug 2006 12:32:52 +0000
Subject: Moving project to sourceforge.

git-svn-id: https://dist.svn.sourceforge.net/svnroot/dist/trunk/dist@1 190e5f8e-a817-0410-acf6-e9863daed9af
---
 mcon/U/Oldsym.U | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 mcon/U/Oldsym.U

(limited to 'mcon/U/Oldsym.U')

diff --git a/mcon/U/Oldsym.U b/mcon/U/Oldsym.U
new file mode 100644
index 0000000..8b11133
--- /dev/null
+++ b/mcon/U/Oldsym.U
@@ -0,0 +1,66 @@
+?RCS: $Id$
+?RCS:
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?RCS: 
+?RCS: You may redistribute only under the terms of the Artistic Licence,
+?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 Licence; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS:
+?RCS: $Log: Oldsym.U,v $
+?RCS: Revision 3.0.1.1  1997/02/28  15:06:58  ram
+?RCS: patch61: added support for src.U
+?RCS:
+?RCS: Revision 3.0  1993/08/18  12:05:13  ram
+?RCS: Baseline for dist 3.0 netwide release.
+?RCS:
+?X: 
+?X: This unit follows the creation of the config.sh file. It adds some
+?X: special symbols: defines from patchlevel.h file if any and CONFIG,
+?X: which is set to true. Then, we try to keep all the new symbols that
+?X: may come from a hint file or a previous config.sh file.
+?X: 
+?MAKE:Oldsym: Config_sh Options test hint src sed sort uniq
+?MAKE:	-pick add $@ %<
+?T:CONFIG sym tmp
+?F:!UU
+: add special variables
+$test -f $src/patchlevel.h && \
+awk '/^#define/ {printf "%s=%s\n",$2,$3}' $src/patchlevel.h >>config.sh
+echo "CONFIG=true" >>config.sh
+
+: propagate old symbols
+if $test -f UU/config.sh; then
+?X: Make sure each symbol is unique in oldconfig.sh
+	<UU/config.sh $sort | $uniq >UU/oldconfig.sh
+?X:
+?X: All the symbols that appear twice come only from config.sh (hence the
+?X: two config.sh in the command line). These symbols will be removed by
+?X: the uniq -u command. The oldsyms file thus contains all the symbols
+?X: that did not appear in the produced config.sh (Larry Wall).
+?X:
+?X: Do not touch the -u flag of uniq.  This means you too, Jarkko.
+?X:
+	$sed -n 's/^\([a-zA-Z_0-9]*\)=.*/\1/p' \
+		config.sh config.sh UU/oldconfig.sh |\
+		$sort | $uniq -u >UU/oldsyms
+	set X `cat UU/oldsyms`
+	shift
+	case $# in
+	0) ;;
+	*)
+		cat <<EOM
+Hmm...You had some extra variables I don't know about...I'll try to keep 'em...
+EOM
+		echo ": Variables propagated from previous config.sh file." >>config.sh
+		for sym in `cat UU/oldsyms`; do
+			echo "    Propagating $hint variable "'$'"$sym..."
+			eval 'tmp="$'"${sym}"'"'
+			echo "$tmp" | \
+				sed -e "s/'/'\"'\"'/g" -e "s/^/$sym='/" -e "s/$/'/" >>config.sh
+		done
+		;;
+	esac
+fi
+
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