Annotation of freem/missing, revision 1.1
1.1 ! snw 1: #! /bin/sh
! 2: # Common wrapper for a few potentially missing GNU and other programs.
! 3:
! 4: scriptversion=2024-06-07.14; # UTC
! 5:
! 6: # shellcheck disable=SC2006,SC2268 # we must support pre-POSIX shells
! 7:
! 8: # Copyright (C) 1996-2024 Free Software Foundation, Inc.
! 9: # Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
! 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: # along with this program. If not, see <https://www.gnu.org/licenses/>.
! 23:
! 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: if test $# -eq 0; then
! 30: echo 1>&2 "Try '$0 --help' for more information"
! 31: exit 1
! 32: fi
! 33:
! 34: case $1 in
! 35:
! 36: --is-lightweight)
! 37: # Used by our autoconf macros to check whether the available missing
! 38: # script is modern enough.
! 39: exit 0
! 40: ;;
! 41:
! 42: --run)
! 43: # Back-compat with the calling convention used by older automake.
! 44: shift
! 45: ;;
! 46:
! 47: -h|--h|--he|--hel|--help)
! 48: echo "\
! 49: $0 [OPTION]... PROGRAM [ARGUMENT]...
! 50:
! 51: Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
! 52: to PROGRAM being missing or too old.
! 53:
! 54: Options:
! 55: -h, --help display this help and exit
! 56: -v, --version output version information and exit
! 57:
! 58: Supported PROGRAM values:
! 59: aclocal autoconf autogen autoheader autom4te automake autoreconf
! 60: bison flex help2man lex makeinfo perl yacc
! 61:
! 62: Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
! 63: 'g' are ignored when checking the name.
! 64:
! 65: Report bugs to <bug-automake@gnu.org>.
! 66: GNU Automake home page: <https://www.gnu.org/software/automake/>.
! 67: General help using GNU software: <https://www.gnu.org/gethelp/>."
! 68: exit $?
! 69: ;;
! 70:
! 71: -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
! 72: echo "missing (GNU Automake) $scriptversion"
! 73: exit $?
! 74: ;;
! 75:
! 76: -*)
! 77: echo 1>&2 "$0: unknown '$1' option"
! 78: echo 1>&2 "Try '$0 --help' for more information"
! 79: exit 1
! 80: ;;
! 81:
! 82: esac
! 83:
! 84: # Run the given program, remember its exit status.
! 85: "$@"; st=$?
! 86:
! 87: # If it succeeded, we are done.
! 88: test $st -eq 0 && exit 0
! 89:
! 90: # Also exit now if we it failed (or wasn't found), and '--version' was
! 91: # passed; such an option is passed most likely to detect whether the
! 92: # program is present and works.
! 93: case $2 in --version|--help) exit $st;; esac
! 94:
! 95: # Exit code 63 means version mismatch. This often happens when the user
! 96: # tries to use an ancient version of a tool on a file that requires a
! 97: # minimum version.
! 98: if test $st -eq 63; then
! 99: msg="probably too old"
! 100: elif test $st -eq 127; then
! 101: # Program was missing.
! 102: msg="missing on your system"
! 103: else
! 104: # Program was found and executed, but failed. Give up.
! 105: exit $st
! 106: fi
! 107:
! 108: perl_URL=https://www.perl.org/
! 109: flex_URL=https://github.com/westes/flex
! 110: gnu_software_URL=https://www.gnu.org/software
! 111:
! 112: program_details ()
! 113: {
! 114: case $1 in
! 115: aclocal|automake|autoreconf)
! 116: echo "The '$1' program is part of the GNU Automake package:"
! 117: echo "<$gnu_software_URL/automake>"
! 118: echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
! 119: echo "<$gnu_software_URL/autoconf>"
! 120: echo "<$gnu_software_URL/m4/>"
! 121: echo "<$perl_URL>"
! 122: ;;
! 123: autoconf|autom4te|autoheader)
! 124: echo "The '$1' program is part of the GNU Autoconf package:"
! 125: echo "<$gnu_software_URL/autoconf/>"
! 126: echo "It also requires GNU m4 and Perl in order to run:"
! 127: echo "<$gnu_software_URL/m4/>"
! 128: echo "<$perl_URL>"
! 129: ;;
! 130: *)
! 131: :
! 132: ;;
! 133: esac
! 134: }
! 135:
! 136: give_advice ()
! 137: {
! 138: # Normalize program name to check for.
! 139: normalized_program=`echo "$1" | sed '
! 140: s/^gnu-//; t
! 141: s/^gnu//; t
! 142: s/^g//; t'`
! 143:
! 144: printf '%s\n' "'$1' is $msg."
! 145:
! 146: configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
! 147: autoheader_deps="'acconfig.h'"
! 148: automake_deps="'Makefile.am'"
! 149: aclocal_deps="'acinclude.m4'"
! 150: case $normalized_program in
! 151: aclocal*)
! 152: echo "You should only need it if you modified $aclocal_deps or"
! 153: echo "$configure_deps."
! 154: ;;
! 155: autoconf*)
! 156: echo "You should only need it if you modified $configure_deps."
! 157: ;;
! 158: autogen*)
! 159: echo "You should only need it if you modified a '.def' or '.tpl' file."
! 160: echo "You may want to install the GNU AutoGen package:"
! 161: echo "<$gnu_software_URL/autogen/>"
! 162: ;;
! 163: autoheader*)
! 164: echo "You should only need it if you modified $autoheader_deps or"
! 165: echo "$configure_deps."
! 166: ;;
! 167: automake*)
! 168: echo "You should only need it if you modified $automake_deps or"
! 169: echo "$configure_deps."
! 170: ;;
! 171: autom4te*)
! 172: echo "You might have modified some maintainer files that require"
! 173: echo "the 'autom4te' program to be rebuilt."
! 174: ;;
! 175: autoreconf*)
! 176: echo "You should only need it if you modified $aclocal_deps or"
! 177: echo "$automake_deps or $autoheader_deps or $automake_deps or"
! 178: echo "$configure_deps."
! 179: ;;
! 180: bison*|yacc*)
! 181: echo "You should only need it if you modified a '.y' file."
! 182: echo "You may want to install the GNU Bison package:"
! 183: echo "<$gnu_software_URL/bison/>"
! 184: ;;
! 185: help2man*)
! 186: echo "You should only need it if you modified a dependency" \
! 187: "of a man page."
! 188: echo "You may want to install the GNU Help2man package:"
! 189: echo "<$gnu_software_URL/help2man/>"
! 190: ;;
! 191: lex*|flex*)
! 192: echo "You should only need it if you modified a '.l' file."
! 193: echo "You may want to install the Fast Lexical Analyzer package:"
! 194: echo "<$flex_URL>"
! 195: ;;
! 196: makeinfo*)
! 197: echo "You should only need it if you modified a '.texi' file, or"
! 198: echo "any other file indirectly affecting the aspect of the manual."
! 199: echo "You might want to install the Texinfo package:"
! 200: echo "<$gnu_software_URL/texinfo/>"
! 201: echo "The spurious makeinfo call might also be the consequence of"
! 202: echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
! 203: echo "want to install GNU make:"
! 204: echo "<$gnu_software_URL/make/>"
! 205: ;;
! 206: perl*)
! 207: echo "You should only need it to run GNU Autoconf, GNU Automake, "
! 208: echo " assorted other tools, or if you modified a Perl source file."
! 209: echo "You may want to install the Perl 5 language interpreter:"
! 210: echo "<$perl_URL>"
! 211: ;;
! 212: *)
! 213: echo "You might have modified some files without having the proper"
! 214: echo "tools for further handling them. Check the 'README' file, it"
! 215: echo "often tells you about the needed prerequisites for installing"
! 216: echo "this package. You may also peek at any GNU archive site, in"
! 217: echo "case some other package contains this missing '$1' program."
! 218: ;;
! 219: esac
! 220: program_details "$normalized_program"
! 221: }
! 222:
! 223: give_advice "$1" | sed -e '1s/^/WARNING: /' \
! 224: -e '2,$s/^/ /' >&2
! 225:
! 226: # Propagate the correct exit status (expected to be 127 for a program
! 227: # not found, 63 for a program that failed due to version mismatch).
! 228: exit $st
! 229:
! 230: # Local variables:
! 231: # eval: (add-hook 'before-save-hook 'time-stamp)
! 232: # time-stamp-start: "scriptversion="
! 233: # time-stamp-format: "%:y-%02m-%02d.%02H"
! 234: # time-stamp-time-zone: "UTC0"
! 235: # time-stamp-end: "; # UTC"
! 236: # End:
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