X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=build-aux%2Fmissing;h=06e0af1d78a39b56fefc7382a1adf23498d1bc39;hb=91af317680862c24bc4b23ba6f98f9f8e5995a3e;hp=3f2dfc15fc8fe5d5e1fb28602bf918263c16533e;hpb=602241295d8c9845a6cf5098ca53bc4e0afd5839;p=gnulib.git diff --git a/build-aux/missing b/build-aux/missing index 3f2dfc15f..06e0af1d7 100755 --- a/build-aux/missing +++ b/build-aux/missing @@ -1,11 +1,10 @@ #! /bin/sh -# Common stub for a few missing GNU programs while installing. +# Common wrapper for a few potentially missing GNU programs. -scriptversion=2012-01-06.18; # UTC +scriptversion=2012-06-14.10; # UTC -# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006, -# 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. -# Originally by Fran,cois Pinard , 1996. +# Copyright (C) 1996-2012 Free Software Foundation, Inc. +# Originally written by Fran,cois Pinard , 1996. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -30,10 +29,6 @@ if test $# -eq 0; then exit 1 fi -run=: -sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p' -sed_minuso='s/.* -o \([^ ]*\).*/\1/p' - # In the cases where this matters, 'missing' is being run in the # srcdir already. if test -f configure.ac; then @@ -42,49 +37,28 @@ else configure_ac=configure.in fi -msg="missing on your system" - case $1 in ---run) - # Try to run requested program, and just exit if it succeeds. - run= - shift - "$@" && exit 0 - # Exit code 63 means version mismatch. This often happens - # when the user try to use an ancient version of a tool on - # a file that requires a minimum version. In this case we - # we should proceed has if the program had been absent, or - # if --run hadn't been passed. - if test $? = 63; then - run=: - msg="probably too old" - fi - ;; + + --is-lightweight) + # Used by our autoconf macros to check whether the available missing + # script is modern enough. + exit 0 + ;; -h|--h|--he|--hel|--help) echo "\ $0 [OPTION]... PROGRAM [ARGUMENT]... -Handle 'PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an -error status if there is no known handling for PROGRAM. +Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due +to PROGRAM being missing or too old. Options: -h, --help display this help and exit -v, --version output version information and exit - --run try to run the given command, and emulate it if it fails Supported PROGRAM values: - aclocal touch file 'aclocal.m4' - autoconf touch file 'configure' - autoheader touch file 'config.h.in' - autom4te touch the output file, or create a stub one - automake touch all 'Makefile.in' files - bison create 'y.tab.[ch]', if possible, from existing .[ch] - flex create 'lex.yy.c', if possible, from existing .c - help2man touch the output file - lex create 'lex.yy.c', if possible, from existing .c - makeinfo touch the output file - yacc create 'y.tab.[ch]', if possible, from existing .[ch] + aclocal autoconf autoheader autom4te automake makeinfo + bison yacc flex lex help2man Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and 'g' are ignored when checking the name. @@ -99,51 +73,53 @@ Send bug reports to ." ;; -*) - echo 1>&2 "$0: Unknown '$1' option" + echo 1>&2 "$0: unknown '$1' option" echo 1>&2 "Try '$0 --help' for more information" exit 1 ;; esac -# normalize program name to check for. +# Run the given program, remember its exit status. +"$@"; st=$? + +# If it succeeded, we are done. +test $st -eq 0 && exit 0 + +# Also exit now if we it failed (or wasn't found), and '--version' was +# passed; such an option is passed most likely to detect whether the +# program is present and works. +case $2 in --version|--help) exit $st;; esac + +# Exit code 63 means version mismatch. This often happens when the user +# tries to use an ancient version of a tool on a file that requires a +# minimum version. +if test $st -eq 63; then + msg="probably too old" +elif test $st -eq 127; then + # Program was missing. + msg="missing on your system" +else + # Program was found and executed, but failed. Give up. + exit $st +fi + +# Normalize program name to check for. program=`echo "$1" | sed ' s/^gnu-//; t s/^gnu//; t s/^g//; t'` -# Now exit if we have it, but it failed. Also exit now if we -# don't have it and --version was passed (most likely to detect -# the program). This is about non-GNU programs, so use $1 not -# $program. -case $1 in - lex*|yacc*) - # Not GNU programs, they don't have --version. - ;; - - *) - if test -z "$run" && ($1 --version) > /dev/null 2>&1; then - # We have it, but it failed. - exit 1 - elif test "x$2" = "x--version" || test "x$2" = "x--help"; then - # Could not run --version or --help. This is probably someone - # running '$TOOL --version' or '$TOOL --help' to check whether - # $TOOL exists and not knowing $TOOL uses missing. - exit 1 - fi - ;; -esac - # If it does not exist, or fails to run (possibly an outdated version), -# try to emulate it. +# advise the user how to get it. case $program in + aclocal*) echo 1>&2 "\ WARNING: '$1' is $msg. You should only need it if you modified 'acinclude.m4' or '${configure_ac}'. You might want to install the Automake and Perl packages. Grab them from any GNU archive site." - touch aclocal.m4 ;; autoconf*) @@ -152,7 +128,6 @@ WARNING: '$1' is $msg. You should only need it if you modified '${configure_ac}'. You might want to install the Autoconf and GNU m4 packages. Grab them from any GNU archive site." - touch configure ;; autoheader*) @@ -161,17 +136,6 @@ WARNING: '$1' is $msg. You should only need it if you modified 'acconfig.h' or '${configure_ac}'. You might want to install the Autoconf and GNU m4 packages. Grab them from any GNU archive site." - files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}` - test -z "$files" && files="config.h" - touch_files= - for f in $files; do - case $f in - *:*) touch_files="$touch_files "`echo "$f" | - sed -e 's/^[^:]*://' -e 's/:.*//'`;; - *) touch_files="$touch_files $f.in";; - esac - done - touch $touch_files ;; automake*) @@ -180,9 +144,6 @@ WARNING: '$1' is $msg. You should only need it if you modified 'Makefile.am', 'acinclude.m4' or '${configure_ac}'. You might want to install the Automake and Perl packages. Grab them from any GNU archive site." - find . -type f -name Makefile.am -print | - sed 's/\.am$/.in/' | - while read f; do touch "$f"; done ;; autom4te*) @@ -192,20 +153,6 @@ WARNING: '$1' is needed, but is $msg. proper tools for further handling them. You can get '$1' as part of Autoconf from any GNU archive site." - - file=`echo "$*" | sed -n "$sed_output"` - test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"` - if test -f "$file"; then - touch $file - else - test -z "$file" || exec >$file - echo "#! /bin/sh" - echo "# Created by GNU Automake missing as a replacement of" - echo "# $ $@" - echo "exit 0" - chmod +x $file - exit 1 - fi ;; bison*|yacc*) @@ -214,28 +161,6 @@ WARNING: '$1' $msg. You should only need it if you modified a '.y' file. You may need the Bison package in order for those modifications to take effect. You can get Bison from any GNU archive site." - rm -f y.tab.c y.tab.h - if test $# -ne 1; then - eval LASTARG=\${$#} - case $LASTARG in - *.y) - SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'` - if test -f "$SRCFILE"; then - cp "$SRCFILE" y.tab.c - fi - SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'` - if test -f "$SRCFILE"; then - cp "$SRCFILE" y.tab.h - fi - ;; - esac - fi - if test ! -f y.tab.h; then - echo >y.tab.h - fi - if test ! -f y.tab.c; then - echo 'main() { return 0; }' >y.tab.c - fi ;; lex*|flex*) @@ -244,21 +169,6 @@ WARNING: '$1' is $msg. You should only need it if you modified a '.l' file. You may need the Flex package in order for those modifications to take effect. You can get Flex from any GNU archive site." - rm -f lex.yy.c - if test $# -ne 1; then - eval LASTARG=\${$#} - case $LASTARG in - *.l) - SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'` - if test -f "$SRCFILE"; then - cp "$SRCFILE" lex.yy.c - fi - ;; - esac - fi - if test ! -f lex.yy.c; then - echo 'main() { return 0; }' >lex.yy.c - fi ;; help2man*) @@ -267,16 +177,6 @@ WARNING: '$1' is $msg. You should only need it if you modified a dependency of a manual page. You may need the Help2man package in order for those modifications to take effect. You can get Help2man from any GNU archive site." - - file=`echo "$*" | sed -n "$sed_output"` - test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"` - if test -f "$file"; then - touch $file - else - test -z "$file" || exec >$file - echo ".ab help2man is required to generate this page" - exit $? - fi ;; makeinfo*) @@ -287,25 +187,6 @@ WARNING: '$1' is $msg. You should only need it if call might also be the consequence of using a buggy 'make' (AIX, DU, IRIX). You might want to install the Texinfo package or the GNU make package. Grab either from any GNU archive site." - # The file to touch is that specified with -o ... - file=`echo "$*" | sed -n "$sed_output"` - test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"` - if test -z "$file"; then - # ... or it is the one specified with @setfilename ... - infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'` - file=`sed -n ' - /^@setfilename/{ - s/.* \([^ ]*\) *$/\1/ - p - q - }' $infile` - # ... or it is derived from the source name (dir/f.texi becomes f.info) - test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info - fi - # If the file does not exist, the user really needs makeinfo; - # let's fail without touching anything. - test -f $file || exit 1 - touch $file ;; *) @@ -316,11 +197,13 @@ WARNING: '$1' is needed, and is $msg. it often tells you about the needed prerequisites for installing this package. You may also peek at any GNU archive site, in case some other package would contain this missing '$1' program." - exit 1 ;; + esac -exit 0 +# Propagate the correct exit status (expected to be 127 for a program +# not found, 63 for a program that failed due to version mismatch). +exit $st # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp)