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Revision 945 - (hide annotations)
Mon Jul 20 15:48:27 2009 UTC (11 years, 9 months ago) by michael
Original Path: ircd-hybrid-7.2/ylwrap
File size: 6179 byte(s)
- fixed some configure mess and imported latest libtool sources

1 michael 912 #! /bin/sh
2     # ylwrap - wrapper for lex/yacc invocations.
3    
4 michael 945 scriptversion=2009-04-28.21; # UTC
5 michael 912
6 michael 945 # Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
7     # 2007, 2009 Free Software Foundation, Inc.
8 michael 912 #
9     # Written by Tom Tromey <tromey@cygnus.com>.
10     #
11     # This program is free software; you can redistribute it and/or modify
12     # it under the terms of the GNU General Public License as published by
13     # the Free Software Foundation; either version 2, or (at your option)
14     # any later version.
15     #
16     # This program is distributed in the hope that it will be useful,
17     # but WITHOUT ANY WARRANTY; without even the implied warranty of
18     # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19     # GNU General Public License for more details.
20     #
21     # You should have received a copy of the GNU General Public License
22 michael 945 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 michael 912
24     # As a special exception to the GNU General Public License, if you
25     # distribute this file as part of a program that contains a
26     # configuration script generated by Autoconf, you may include it under
27     # the same distribution terms that you use for the rest of that program.
28    
29     # This file is maintained in Automake, please report
30     # bugs to <bug-automake@gnu.org> or send patches to
31     # <automake-patches@gnu.org>.
32    
33     case "$1" in
34     '')
35     echo "$0: No files given. Try \`$0 --help' for more information." 1>&2
36     exit 1
37     ;;
38     --basedir)
39     basedir=$2
40     shift 2
41     ;;
42     -h|--h*)
43     cat <<\EOF
44     Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
45    
46     Wrapper for lex/yacc invocations, renaming files as desired.
47    
48     INPUT is the input file
49     OUTPUT is one file PROG generates
50     DESIRED is the file we actually want instead of OUTPUT
51     PROGRAM is program to run
52     ARGS are passed to PROG
53    
54     Any number of OUTPUT,DESIRED pairs may be used.
55    
56     Report bugs to <bug-automake@gnu.org>.
57     EOF
58     exit $?
59     ;;
60     -v|--v*)
61     echo "ylwrap $scriptversion"
62     exit $?
63     ;;
64     esac
65    
66    
67     # The input.
68     input="$1"
69     shift
70     case "$input" in
71     [\\/]* | ?:[\\/]*)
72     # Absolute path; do nothing.
73     ;;
74     *)
75     # Relative path. Make it absolute.
76     input="`pwd`/$input"
77     ;;
78     esac
79    
80     pairlist=
81     while test "$#" -ne 0; do
82     if test "$1" = "--"; then
83     shift
84     break
85     fi
86     pairlist="$pairlist $1"
87     shift
88     done
89    
90     # The program to run.
91     prog="$1"
92     shift
93     # Make any relative path in $prog absolute.
94     case "$prog" in
95     [\\/]* | ?:[\\/]*) ;;
96     *[\\/]*) prog="`pwd`/$prog" ;;
97     esac
98    
99     # FIXME: add hostname here for parallel makes that run commands on
100     # other machines. But that might take us over the 14-char limit.
101     dirname=ylwrap$$
102 michael 945 trap "cd '`pwd`'; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15
103 michael 912 mkdir $dirname || exit 1
104    
105     cd $dirname
106    
107     case $# in
108 michael 945 0) "$prog" "$input" ;;
109     *) "$prog" "$@" "$input" ;;
110 michael 912 esac
111     ret=$?
112    
113     if test $ret -eq 0; then
114     set X $pairlist
115     shift
116     first=yes
117     # Since DOS filename conventions don't allow two dots,
118     # the DOS version of Bison writes out y_tab.c instead of y.tab.c
119     # and y_tab.h instead of y.tab.h. Test to see if this is the case.
120     y_tab_nodot="no"
121     if test -f y_tab.c || test -f y_tab.h; then
122     y_tab_nodot="yes"
123     fi
124    
125     # The directory holding the input.
126     input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
127     # Quote $INPUT_DIR so we can use it in a regexp.
128     # FIXME: really we should care about more than `.' and `\'.
129     input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
130    
131     while test "$#" -ne 0; do
132     from="$1"
133     # Handle y_tab.c and y_tab.h output by DOS
134     if test $y_tab_nodot = "yes"; then
135     if test $from = "y.tab.c"; then
136     from="y_tab.c"
137     else
138     if test $from = "y.tab.h"; then
139     from="y_tab.h"
140     fi
141     fi
142     fi
143     if test -f "$from"; then
144     # If $2 is an absolute path name, then just use that,
145     # otherwise prepend `../'.
146     case "$2" in
147     [\\/]* | ?:[\\/]*) target="$2";;
148     *) target="../$2";;
149     esac
150    
151     # We do not want to overwrite a header file if it hasn't
152     # changed. This avoid useless recompilations. However the
153     # parser itself (the first file) should always be updated,
154     # because it is the destination of the .y.c rule in the
155     # Makefile. Divert the output of all other files to a temporary
156     # file so we can compare them to existing versions.
157     if test $first = no; then
158     realtarget="$target"
159     target="tmp-`echo $target | sed s/.*[\\/]//g`"
160     fi
161     # Edit out `#line' or `#' directives.
162     #
163     # We don't want the resulting debug information to point at
164     # an absolute srcdir; it is better for it to just mention the
165     # .y file with no path.
166     #
167     # We want to use the real output file name, not yy.lex.c for
168     # instance.
169     #
170     # We want the include guards to be adjusted too.
171     FROM=`echo "$from" | sed \
172     -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
173     -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
174     TARGET=`echo "$2" | sed \
175     -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
176     -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
177    
178     sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
179     -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?
180    
181     # Check whether header files must be updated.
182     if test $first = no; then
183     if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
184     echo "$2" is unchanged
185     rm -f "$target"
186     else
187     echo updating "$2"
188     mv -f "$target" "$realtarget"
189     fi
190     fi
191     else
192     # A missing file is only an error for the first file. This
193     # is a blatant hack to let us support using "yacc -d". If -d
194     # is not specified, we don't want an error when the header
195     # file is "missing".
196     if test $first = yes; then
197     ret=1
198     fi
199     fi
200     shift
201     shift
202     first=no
203     done
204     else
205     ret=$?
206     fi
207    
208     # Remove the directory.
209     cd ..
210     rm -rf $dirname
211    
212     exit $ret
213    
214     # Local Variables:
215     # mode: shell-script
216     # sh-indentation: 2
217     # eval: (add-hook 'write-file-hooks 'time-stamp)
218     # time-stamp-start: "scriptversion="
219     # time-stamp-format: "%:y-%02m-%02d.%02H"
220 michael 945 # time-stamp-time-zone: "UTC"
221     # time-stamp-end: "; # UTC"
222 michael 912 # End:

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