3 ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
5 ?RCS: You may redistribute only under the terms of the Artistic License,
6 ?RCS: as specified in the README file that comes with the distribution.
7 ?RCS: You may reuse parts of this distribution only within the terms of
8 ?RCS: that same Artistic License; a copy of which may be found at the root
9 ?RCS: of the source tree for dist 4.0.
11 ?RCS: $Log: Oldsym.U,v $
12 ?RCS: Revision 3.0.1.1 1997/02/28 15:06:58 ram
13 ?RCS: patch61: added support for src.U
15 ?RCS: Revision 3.0 1993/08/18 12:05:13 ram
16 ?RCS: Baseline for dist 3.0 netwide release.
19 ?X: This unit follows the creation of the config.sh file. It adds some
20 ?X: special symbols: defines from patchlevel.h file if any and CONFIG,
21 ?X: which is set to true. Then, we try to keep all the new symbols that
22 ?X: may come from a hint file or a previous config.sh file.
24 ?MAKE:Oldsym: Config_sh Options test hint src sed sort uniq
25 ?MAKE: -pick add $@ %<
28 : add special variables
29 $test -f $src/patchlevel.h && \
30 awk '/^#define/ {printf "%s=%s\n",$2,$3}' $src/patchlevel.h >>config.sh
31 echo "CONFIG=true" >>config.sh
33 : propagate old symbols
34 if $test -f UU/config.sh; then
35 ?X: Make sure each symbol is unique in oldconfig.sh
36 <UU/config.sh $sort | $uniq >UU/oldconfig.sh
38 ?X: All the symbols that appear twice come only from config.sh (hence the
39 ?X: two config.sh in the command line). These symbols will be removed by
40 ?X: the uniq -u command. The oldsyms file thus contains all the symbols
41 ?X: that did not appear in the produced config.sh (Larry Wall).
43 ?X: Do not touch the -u flag of uniq. This means you too, Jarkko.
45 $sed -n 's/^\([a-zA-Z_0-9]*\)=.*/\1/p' \
46 config.sh config.sh UU/oldconfig.sh |\
47 $sort | $uniq -u >UU/oldsyms
48 set X `cat UU/oldsyms`
54 Hmm...You had some extra variables I don't know about...I'll try to keep 'em...
56 echo ": Variables propagated from previous config.sh file." >>config.sh
57 for sym in `cat UU/oldsyms`; do
58 echo " Propagating $hint variable "'$'"$sym..."
59 eval 'tmp="$'"${sym}"'"'
61 sed -e "s/'/'\"'\"'/g" -e "s/^/$sym='/" -e "s/$/'/" >>config.sh