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6b66678a | 1 | #! /bin/sh |
53ba6704 | 2 | # Common wrapper for a few potentially missing GNU programs. |
6b66678a | 3 | |
53ba6704 | 4 | scriptversion=2012-06-26.16; # UTC |
6b66678a | 5 | |
53ba6704 JF |
6 | # Copyright (C) 1996-2013 Free Software Foundation, Inc. |
7 | # Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996. | |
6b66678a DWT |
8 | |
9 | # This program is free software; you can redistribute it and/or modify | |
10 | # it under the terms of the GNU General Public License as published by | |
11 | # the Free Software Foundation; either version 2, or (at your option) | |
12 | # any later version. | |
13 | ||
14 | # This program is distributed in the hope that it will be useful, | |
15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | # GNU General Public License for more details. | |
18 | ||
19 | # You should have received a copy of the GNU General Public License | |
20 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | ||
22 | # As a special exception to the GNU General Public License, if you | |
23 | # distribute this file as part of a program that contains a | |
24 | # configuration script generated by Autoconf, you may include it under | |
25 | # the same distribution terms that you use for the rest of that program. | |
26 | ||
27 | if test $# -eq 0; then | |
53ba6704 | 28 | echo 1>&2 "Try '$0 --help' for more information" |
6b66678a DWT |
29 | exit 1 |
30 | fi | |
31 | ||
53ba6704 | 32 | case $1 in |
6b66678a | 33 | |
53ba6704 JF |
34 | --is-lightweight) |
35 | # Used by our autoconf macros to check whether the available missing | |
36 | # script is modern enough. | |
37 | exit 0 | |
38 | ;; | |
6b66678a | 39 | |
53ba6704 JF |
40 | --run) |
41 | # Back-compat with the calling convention used by older automake. | |
42 | shift | |
43 | ;; | |
6b66678a DWT |
44 | |
45 | -h|--h|--he|--hel|--help) | |
46 | echo "\ | |
47 | $0 [OPTION]... PROGRAM [ARGUMENT]... | |
48 | ||
53ba6704 JF |
49 | Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due |
50 | to PROGRAM being missing or too old. | |
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51 | |
52 | Options: | |
53 | -h, --help display this help and exit | |
54 | -v, --version output version information and exit | |
6b66678a DWT |
55 | |
56 | Supported PROGRAM values: | |
53ba6704 JF |
57 | aclocal autoconf autoheader autom4te automake makeinfo |
58 | bison yacc flex lex help2man | |
6b66678a | 59 | |
53ba6704 JF |
60 | Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and |
61 | 'g' are ignored when checking the name. | |
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62 | |
63 | Send bug reports to <bug-automake@gnu.org>." | |
64 | exit $? | |
65 | ;; | |
66 | ||
67 | -v|--v|--ve|--ver|--vers|--versi|--versio|--version) | |
68 | echo "missing $scriptversion (GNU Automake)" | |
69 | exit $? | |
70 | ;; | |
71 | ||
72 | -*) | |
53ba6704 JF |
73 | echo 1>&2 "$0: unknown '$1' option" |
74 | echo 1>&2 "Try '$0 --help' for more information" | |
6b66678a DWT |
75 | exit 1 |
76 | ;; | |
77 | ||
78 | esac | |
79 | ||
53ba6704 JF |
80 | # Run the given program, remember its exit status. |
81 | "$@"; st=$? | |
82 | ||
83 | # If it succeeded, we are done. | |
84 | test $st -eq 0 && exit 0 | |
85 | ||
86 | # Also exit now if we it failed (or wasn't found), and '--version' was | |
87 | # passed; such an option is passed most likely to detect whether the | |
88 | # program is present and works. | |
89 | case $2 in --version|--help) exit $st;; esac | |
90 | ||
91 | # Exit code 63 means version mismatch. This often happens when the user | |
92 | # tries to use an ancient version of a tool on a file that requires a | |
93 | # minimum version. | |
94 | if test $st -eq 63; then | |
95 | msg="probably too old" | |
96 | elif test $st -eq 127; then | |
97 | # Program was missing. | |
98 | msg="missing on your system" | |
99 | else | |
100 | # Program was found and executed, but failed. Give up. | |
101 | exit $st | |
102 | fi | |
6b66678a | 103 | |
53ba6704 JF |
104 | perl_URL=http://www.perl.org/ |
105 | flex_URL=http://flex.sourceforge.net/ | |
106 | gnu_software_URL=http://www.gnu.org/software | |
107 | ||
108 | program_details () | |
109 | { | |
110 | case $1 in | |
111 | aclocal|automake) | |
112 | echo "The '$1' program is part of the GNU Automake package:" | |
113 | echo "<$gnu_software_URL/automake>" | |
114 | echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:" | |
115 | echo "<$gnu_software_URL/autoconf>" | |
116 | echo "<$gnu_software_URL/m4/>" | |
117 | echo "<$perl_URL>" | |
118 | ;; | |
119 | autoconf|autom4te|autoheader) | |
120 | echo "The '$1' program is part of the GNU Autoconf package:" | |
121 | echo "<$gnu_software_URL/autoconf/>" | |
122 | echo "It also requires GNU m4 and Perl in order to run:" | |
123 | echo "<$gnu_software_URL/m4/>" | |
124 | echo "<$perl_URL>" | |
125 | ;; | |
126 | esac | |
127 | } | |
128 | ||
129 | give_advice () | |
130 | { | |
131 | # Normalize program name to check for. | |
132 | normalized_program=`echo "$1" | sed ' | |
133 | s/^gnu-//; t | |
134 | s/^gnu//; t | |
135 | s/^g//; t'` | |
136 | ||
137 | printf '%s\n' "'$1' is $msg." | |
138 | ||
139 | configure_deps="'configure.ac' or m4 files included by 'configure.ac'" | |
140 | case $normalized_program in | |
141 | autoconf*) | |
142 | echo "You should only need it if you modified 'configure.ac'," | |
143 | echo "or m4 files included by it." | |
144 | program_details 'autoconf' | |
145 | ;; | |
146 | autoheader*) | |
147 | echo "You should only need it if you modified 'acconfig.h' or" | |
148 | echo "$configure_deps." | |
149 | program_details 'autoheader' | |
150 | ;; | |
151 | automake*) | |
152 | echo "You should only need it if you modified 'Makefile.am' or" | |
153 | echo "$configure_deps." | |
154 | program_details 'automake' | |
155 | ;; | |
156 | aclocal*) | |
157 | echo "You should only need it if you modified 'acinclude.m4' or" | |
158 | echo "$configure_deps." | |
159 | program_details 'aclocal' | |
160 | ;; | |
161 | autom4te*) | |
162 | echo "You might have modified some maintainer files that require" | |
163 | echo "the 'automa4te' program to be rebuilt." | |
164 | program_details 'autom4te' | |
165 | ;; | |
166 | bison*|yacc*) | |
167 | echo "You should only need it if you modified a '.y' file." | |
168 | echo "You may want to install the GNU Bison package:" | |
169 | echo "<$gnu_software_URL/bison/>" | |
170 | ;; | |
171 | lex*|flex*) | |
172 | echo "You should only need it if you modified a '.l' file." | |
173 | echo "You may want to install the Fast Lexical Analyzer package:" | |
174 | echo "<$flex_URL>" | |
175 | ;; | |
176 | help2man*) | |
177 | echo "You should only need it if you modified a dependency" \ | |
178 | "of a man page." | |
179 | echo "You may want to install the GNU Help2man package:" | |
180 | echo "<$gnu_software_URL/help2man/>" | |
181 | ;; | |
182 | makeinfo*) | |
183 | echo "You should only need it if you modified a '.texi' file, or" | |
184 | echo "any other file indirectly affecting the aspect of the manual." | |
185 | echo "You might want to install the Texinfo package:" | |
186 | echo "<$gnu_software_URL/texinfo/>" | |
187 | echo "The spurious makeinfo call might also be the consequence of" | |
188 | echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might" | |
189 | echo "want to install GNU make:" | |
190 | echo "<$gnu_software_URL/make/>" | |
191 | ;; | |
192 | *) | |
193 | echo "You might have modified some files without having the proper" | |
194 | echo "tools for further handling them. Check the 'README' file, it" | |
195 | echo "often tells you about the needed prerequisites for installing" | |
196 | echo "this package. You may also peek at any GNU archive site, in" | |
197 | echo "case some other package contains this missing '$1' program." | |
198 | ;; | |
199 | esac | |
200 | } | |
201 | ||
202 | give_advice "$1" | sed -e '1s/^/WARNING: /' \ | |
203 | -e '2,$s/^/ /' >&2 | |
204 | ||
205 | # Propagate the correct exit status (expected to be 127 for a program | |
206 | # not found, 63 for a program that failed due to version mismatch). | |
207 | exit $st | |
6b66678a DWT |
208 | |
209 | # Local variables: | |
210 | # eval: (add-hook 'write-file-hooks 'time-stamp) | |
211 | # time-stamp-start: "scriptversion=" | |
212 | # time-stamp-format: "%:y-%02m-%02d.%02H" | |
213 | # time-stamp-time-zone: "UTC" | |
214 | # time-stamp-end: "; # UTC" | |
215 | # End: |