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Diffstat (limited to 'bin/autoreconf.in')
| -rw-r--r-- | bin/autoreconf.in | 717 |
1 files changed, 717 insertions, 0 deletions
diff --git a/bin/autoreconf.in b/bin/autoreconf.in new file mode 100644 index 0000000..acf25d4 --- /dev/null +++ b/bin/autoreconf.in @@ -0,0 +1,717 @@ +#! @PERL@ -w +# -*- perl -*- +# @configure_input@ + +eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac' + if 0; + +# autoreconf - install the GNU Build System in a directory tree +# Copyright (C) 1994, 1999-2012 Free Software Foundation, Inc. + +# 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 +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# Written by David J. MacKenzie. +# Extended and rewritten in Perl by Akim Demaille. + +BEGIN +{ + my $pkgdatadir = $ENV{'autom4te_perllibdir'} || '@pkgdatadir@'; + unshift @INC, $pkgdatadir; + + # Override SHELL. On DJGPP SHELL may not be set to a shell + # that can handle redirection and quote arguments correctly, + # e.g.: COMMAND.COM. For DJGPP always use the shell that configure + # has detected. + $ENV{'SHELL'} = '@SHELL@' if ($^O eq 'dos'); +} + +use Autom4te::ChannelDefs; +use Autom4te::Channels; +use Autom4te::Configure_ac; +use Autom4te::FileUtils; +use Autom4te::General; +use Autom4te::XFile; +# Do not use Cwd::chdir, since it might hang. +use Cwd 'cwd'; +use strict; + +## ----------- ## +## Variables. ## +## ----------- ## + +# $HELP +# ----- +$help = "Usage: $0 [OPTION]... [DIRECTORY]... + +Run `autoconf' (and `autoheader', `aclocal', `automake', `autopoint' +(formerly `gettextize'), and `libtoolize' where appropriate) +repeatedly to remake the GNU Build System files in specified +DIRECTORIES and their subdirectories (defaulting to `.'). + +By default, it only remakes those files that are older than their +sources. If you install new versions of the GNU Build System, +you can make `autoreconf' remake all of the files by giving it the +`--force' option. + +Operation modes: + -h, --help print this help, then exit + -V, --version print version number, then exit + -v, --verbose verbosely report processing + -d, --debug don't remove temporary files + -f, --force consider all files obsolete + -i, --install copy missing auxiliary files + --no-recursive don't rebuild sub-packages + -s, --symlink with -i, install symbolic links instead of copies + -m, --make when applicable, re-run ./configure && make + -W, --warnings=CATEGORY report the warnings falling in CATEGORY [syntax] + +" . Autom4te::ChannelDefs::usage . " + +The environment variable \`WARNINGS\' is honored. Some subtools might +support other warning types, using \`all' is encouraged. + +Library directories: + -B, --prepend-include=DIR prepend directory DIR to search path + -I, --include=DIR append directory DIR to search path + +The environment variables AUTOM4TE, AUTOCONF, AUTOHEADER, AUTOMAKE, +ACLOCAL, AUTOPOINT, LIBTOOLIZE, M4, and MAKE are honored. + +Report bugs to <bug-autoconf\@gnu.org>. +GNU Autoconf home page: <http://www.gnu.org/software/autoconf/>. +General help using GNU software: <http://www.gnu.org/gethelp/>. +"; + +# $VERSION +# -------- +$version = "autoreconf (@PACKAGE_NAME@) @VERSION@ +Copyright (C) @RELEASE_YEAR@ Free Software Foundation, Inc. +License GPLv3+/Autoconf: GNU GPL version 3 or later +<http://gnu.org/licenses/gpl.html>, <http://gnu.org/licenses/exceptions.html> +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. + +Written by David J. MacKenzie and Akim Demaille. +"; + +# Lib files. +my $autoconf = $ENV{'AUTOCONF'} || '@bindir@/@autoconf-name@'; +my $autoheader = $ENV{'AUTOHEADER'} || '@bindir@/@autoheader-name@'; +my $autom4te = $ENV{'AUTOM4TE'} || '@bindir@/@autom4te-name@'; +my $automake = $ENV{'AUTOMAKE'} || 'automake'; +my $aclocal = $ENV{'ACLOCAL'} || 'aclocal'; +my $libtoolize = $ENV{'LIBTOOLIZE'} || 'libtoolize'; +my $autopoint = $ENV{'AUTOPOINT'} || 'autopoint'; +my $make = $ENV{'MAKE'} || 'make'; + +# --install -- as --add-missing in other tools. +my $install = 0; +# symlink -- when --install, use symlinks instead. +my $symlink = 0; +# Does aclocal support --force? +my $aclocal_supports_force = 0; +# Does aclocal support -Wfoo? +my $aclocal_supports_warnings = 0; +# Does automake support --force-missing? +my $automake_supports_force_missing = 0; +# Does automake support -Wfoo? +my $automake_supports_warnings = 0; + +my @prepend_include; +my @include; + +# List of command line warning requests. +my @warning; + +# Rerun `./configure && make'? +my $run_make = 0; + +# Recurse into subpackages +my $recursive = 1; + +## ---------- ## +## Routines. ## +## ---------- ## + + +# parse_args () +# ------------- +# Process any command line arguments. +sub parse_args () +{ + my $srcdir; + + getopt ("W|warnings=s" => \@warning, + 'I|include=s' => \@include, + 'B|prepend-include=s' => \@prepend_include, + 'i|install' => \$install, + 's|symlink' => \$symlink, + 'm|make' => \$run_make, + 'recursive!' => \$recursive); + + # Split the warnings as a list of elements instead of a list of + # lists. + @warning = map { split /,/ } @warning; + parse_WARNINGS; + parse_warnings '--warnings', @warning; + + # Even if the user specified a configure.ac, trim to get the + # directory, and look for configure.ac again. Because (i) the code + # is simpler, and (ii) we are still able to diagnose simultaneous + # presence of configure.ac and configure.in. + @ARGV = map { /configure\.(ac|in)$/ ? dirname ($_) : $_ } @ARGV; + push @ARGV, '.' unless @ARGV; + + if ($verbose && $debug) + { + for my $prog ($autoconf, $autoheader, + $automake, $aclocal, + $autopoint, + $libtoolize) + { + xsystem ("$prog --version | sed 1q >&2"); + print STDERR "\n"; + } + } + + my $aclocal_help = `$aclocal --help 2>/dev/null`; + my $automake_help = `$automake --help 2>/dev/null`; + $aclocal_supports_force = $aclocal_help =~ /--force/; + $aclocal_supports_warnings = $aclocal_help =~ /--warnings/; + $automake_supports_force_missing = $automake_help =~ /--force-missing/; + $automake_supports_warnings = $automake_help =~ /--warnings/; + + # Dispatch autoreconf's option to the tools. + # --include; + $aclocal .= join (' -I ', '', map { shell_quote ($_) } @include); + $autoconf .= join (' --include=', '', map { shell_quote ($_) } @include); + $autoconf .= join (' --prepend-include=', '', map { shell_quote ($_) } @prepend_include); + $autoheader .= join (' --include=', '', map { shell_quote ($_) } @include); + $autoheader .= join (' --prepend-include=', '', map { shell_quote ($_) } @prepend_include); + + # --install and --symlink; + if ($install) + { + $automake .= ' --add-missing'; + $automake .= ' --copy' unless $symlink; + $libtoolize .= ' --copy' unless $symlink; + } + # --force; + if ($force) + { + $aclocal .= ' --force' + if $aclocal_supports_force; + $autoconf .= ' --force'; + $autoheader .= ' --force'; + $automake .= ' --force-missing' + if $automake_supports_force_missing; + $autopoint .= ' --force'; + $libtoolize .= ' --force'; + } + else + { + # The implementation of --no-force is bogus in all implementations + # of Automake up to 1.8, so we avoid it in these cases. (Automake + # 1.8 is the first version where aclocal supports force, hence + # the condition.) + $automake .= ' --no-force' + if $aclocal_supports_force; + } + # --verbose --verbose or --debug; + if ($verbose > 1 || $debug) + { + $autoconf .= ' --verbose'; + $autoheader .= ' --verbose'; + $automake .= ' --verbose'; + $aclocal .= ' --verbose'; + } + if ($debug) + { + $autoconf .= ' --debug'; + $autoheader .= ' --debug'; + $libtoolize .= ' --debug'; + } + # --warnings; + if (@warning) + { + my $warn = ' --warnings=' . join (',', @warning); + $autoconf .= $warn; + $autoheader .= $warn; + $automake .= $warn + if $automake_supports_warnings; + $aclocal .= $warn + if $aclocal_supports_warnings; + } +} + + +# &run_aclocal ($ACLOCAL, $FLAGS) +# ------------------------------- +# Update aclocal.m4 as lazily as possible, as aclocal pre-1.8 always +# overwrites aclocal.m4, hence triggers autoconf, autoheader, automake +# etc. uselessly. aclocal 1.8+ does not need this. +sub run_aclocal ($$) +{ + my ($aclocal, $flags) = @_; + + # aclocal 1.8+ does all this for free. It can be recognized by its + # --force support. + if ($aclocal_supports_force) + { + xsystem ("$aclocal $flags"); + } + else + { + xsystem ("$aclocal $flags --output=aclocal.m4t"); + # aclocal may produce no output. + if (-f 'aclocal.m4t') + { + update_file ('aclocal.m4t', 'aclocal.m4'); + # Make sure that the local m4 files are older than + # aclocal.m4. + # + # Why is not always the case? Because we already run + # aclocal at first (before tracing), which, for instance, + # can find Gettext's macros in .../share/aclocal, so we may + # have had the right aclocal.m4 already. Then autopoint is + # run, and installs locally these M4 files. Then + # autoreconf, via update_file, sees it is the _same_ + # aclocal.m4, and doesn't change its timestamp. But later, + # Automake's Makefile expresses that aclocal.m4 depends on + # these local files, which are newer, so it triggers aclocal + # again. + # + # To make sure aclocal.m4 is no older, we change the + # modification times of the local M4 files to be not newer + # than it. + # + # First, where are the local files? + my $aclocal_local_dir = '.'; + if ($flags =~ /-I\s+(\S+)/) + { + $aclocal_local_dir = $1; + } + # All the local files newer than aclocal.m4 are to be + # made not newer than it. + my $aclocal_m4_mtime = mtime ('aclocal.m4'); + for my $file (glob ("$aclocal_local_dir/*.m4"), 'acinclude.m4') + { + if ($aclocal_m4_mtime < mtime ($file)) + { + debug "aging $file to be not newer than aclocal.m4"; + utime $aclocal_m4_mtime, $aclocal_m4_mtime, $file; + } + } + } + } +} + +# &autoreconf_current_directory +# ----------------------------- +sub autoreconf_current_directory () +{ + my $configure_ac = find_configure_ac; + + # ---------------------- # + # Is it using Autoconf? # + # ---------------------- # + + my $uses_autoconf; + my $uses_gettext; + if (-f $configure_ac) + { + my $configure_ac_file = new Autom4te::XFile "< $configure_ac"; + while ($_ = $configure_ac_file->getline) + { + s/#.*//; + s/dnl.*//; + $uses_autoconf = 1 if /AC_INIT/; + # See below for why we look for gettext here. + $uses_gettext = 1 if /^AM_GNU_GETTEXT_VERSION/; + } + } + if (!$uses_autoconf) + { + verb "$configure_ac: not using Autoconf"; + return; + } + + + # ------------------- # + # Running autopoint. # + # ------------------- # + + # Gettext is a bit of a problem: its macros are not necessarily + # visible to aclocal, so if we start with a completely striped down + # package (think of a fresh CVS checkout), running `aclocal' first + # will fail: the Gettext macros are missing. + # + # Therefore, we can't use the traces to decide if we use Gettext or + # not. I guess that once Gettext move to 2.5x we will be able to, + # but in the meanwhile forget it. + # + # We can only grep for AM_GNU_GETTEXT_VERSION in configure.ac. You + # might think this approach is naive, and indeed it is, as it + # prevents one to embed AM_GNU_GETTEXT_VERSION in another *.m4, but + # anyway we don't limit the generality, since... that's what + # autopoint does. Actually, it is even more restrictive, as it + # greps for `^AM_GNU_GETTEXT_VERSION('. We did this above, while + # scanning configure.ac. + if (!$uses_gettext) + { + verb "$configure_ac: not using Gettext"; + } + elsif (!$install) + { + verb "$configure_ac: not running autopoint: --install not given"; + } + else + { + xsystem_hint ("autopoint is needed because this package uses Gettext", "$autopoint"); + } + + + # ----------------- # + # Running aclocal. # + # ----------------- # + + # Run it first: it might discover new macros to add, e.g., + # AC_PROG_LIBTOOL, which we will trace later to see if Libtool is + # used. + # + # Always run it. Tracking its sources for up-to-dateness is too + # complex and too error prone. The best we can do is avoiding + # nuking the time stamp. + my $uses_aclocal = 1; + + # Nevertheless, if aclocal.m4 exists and is not made by aclocal, + # don't run aclocal. + + if (-f 'aclocal.m4') + { + my $aclocal_m4 = new Autom4te::XFile 'aclocal.m4'; + $_ = $aclocal_m4->getline; + $uses_aclocal = 0 + unless defined ($_) && /generated.*by aclocal/; + } + + # If there are flags for aclocal in Makefile.am, use them. + my $aclocal_flags = ''; + if ($uses_aclocal && -f 'Makefile.am') + { + my $makefile = new Autom4te::XFile 'Makefile.am'; + while ($_ = $makefile->getline) + { + if (/^ACLOCAL_[A-Z_]*FLAGS\s*=\s*(.*)/) + { + $aclocal_flags = $1; + last; + } + } + } + + if (!$uses_aclocal) + { + verb "$configure_ac: not using aclocal"; + } + else + { + # Some file systems have sub-second time stamps, and if so we may + # run into trouble later, after we rerun autoconf and set the + # time stamps of input files to be no greater than aclocal.m4, + # because the time-stamp-setting operation (utime) has a + # resolution of only 1 second. Work around the problem by + # ensuring that there is at least a one-second window before the + # time stamp of aclocal.m4t in which no file time stamps can + # fall. + sleep 1; + + run_aclocal ($aclocal, $aclocal_flags); + } + + # We might have to rerun aclocal if Libtool (or others) imports new + # macros. + my $rerun_aclocal = 0; + + + + # ------------------------------- # + # See what tools will be needed. # + # ------------------------------- # + + # Perform a single trace reading to avoid --force forcing a rerun + # between two --trace, that's useless. If there is no AC_INIT, then + # we are not interested: it looks like a Cygnus thingy. + my $aux_dir; + my $uses_gettext_via_traces; + my $uses_libtool; + my $uses_libltdl; + my $uses_autoheader; + my $uses_automake; + my @subdir; + verb "$configure_ac: tracing"; + my $traces = new Autom4te::XFile + ("$autoconf" + . join (' ', + map { ' --trace=' . $_ . ':\$n::\${::}%' } + # If you change this list, update the + # `Autoreconf-preselections' section of autom4te.in. + 'AC_CONFIG_AUX_DIR', + 'AC_CONFIG_HEADERS', + 'AC_CONFIG_SUBDIRS', + 'AC_INIT', + 'AC_PROG_LIBTOOL', + 'LT_INIT', + 'LT_CONFIG_LTDL_DIR', + 'AM_GNU_GETTEXT', + 'AM_INIT_AUTOMAKE', + ) + . ' |'); + while ($_ = $traces->getline) + { + chomp; + my ($macro, @args) = split (/::/); + $aux_dir = $args[0] if $macro eq "AC_CONFIG_AUX_DIR"; + $uses_autoconf = 1 if $macro eq "AC_INIT"; + $uses_gettext_via_traces = 1 if $macro eq "AM_GNU_GETTEXT"; + $uses_libtool = 1 if $macro eq "AC_PROG_LIBTOOL" + || $macro eq "LT_INIT"; + $uses_libltdl = 1 if $macro eq "LT_CONFIG_LTDL_DIR"; + $uses_autoheader = 1 if $macro eq "AC_CONFIG_HEADERS"; + $uses_automake = 1 if $macro eq "AM_INIT_AUTOMAKE"; + push @subdir, split (' ', $args[0]) + if $macro eq "AC_CONFIG_SUBDIRS" && $recursive; + } + + # The subdirs are *optional*, they may not exist. + foreach (@subdir) + { + if (-d) + { + verb "$configure_ac: adding subdirectory $_ to autoreconf"; + autoreconf ($_); + } + else + { + verb "$configure_ac: subdirectory $_ not present"; + } + } + + # Gettext consistency checks... + error "$configure_ac: AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION" + if $uses_gettext_via_traces && ! $uses_gettext; + error "$configure_ac: AM_GNU_GETTEXT_VERSION is used, but not AM_GNU_GETTEXT" + if $uses_gettext && ! $uses_gettext_via_traces; + + + # ---------------------------- # + # Setting up the source tree. # + # ---------------------------- # + + # libtoolize, automake --add-missing etc. will drop files in the + # $AUX_DIR. But these tools fail to install these files if the + # directory itself does not exist, which valid: just imagine a CVS + # repository with hand written code only (there is not even a need + # for a Makefile.am!). + + if (defined $aux_dir && ! -d $aux_dir) + { + verb "$configure_ac: creating directory $aux_dir"; + mkdir $aux_dir, 0755 + or error "cannot create $aux_dir: $!"; + } + + + # -------------------- # + # Running libtoolize. # + # -------------------- # + + if (!$uses_libtool) + { + verb "$configure_ac: not using Libtool"; + } + elsif ($install) + { + if ($uses_libltdl) + { + $libtoolize .= " --ltdl"; + } + xsystem_hint ("libtoolize is needed because this package uses Libtool", $libtoolize); + $rerun_aclocal = 1; + } + else + { + verb "$configure_ac: not running libtoolize: --install not given"; + } + + + + # ------------------- # + # Rerunning aclocal. # + # ------------------- # + + # If we re-installed Libtool or Gettext, the macros might have changed. + # Automake also needs an up-to-date aclocal.m4. + if ($rerun_aclocal) + { + if (!$uses_aclocal) + { + verb "$configure_ac: not using aclocal"; + } + else + { + run_aclocal ($aclocal, $aclocal_flags); + } + } + + + # ------------------ # + # Running autoconf. # + # ------------------ # + + # Don't try to be smarter than `autoconf', which does its own up to + # date checks. + # + # We prefer running autoconf before autoheader, because (i) the + # latter runs the former, and (ii) autoconf is stricter than + # autoheader. So all in all, autoconf should give better error + # messages. + xsystem ($autoconf); + + + # -------------------- # + # Running autoheader. # + # -------------------- # + + # We now consider that if AC_CONFIG_HEADERS is used, then autoheader + # is used too. + # + # Just as for autoconf, up to date ness is performed by the tool + # itself. + # + # Run it before automake, since the latter checks the presence of + # config.h.in when it sees an AC_CONFIG_HEADERS. + if (!$uses_autoheader) + { + verb "$configure_ac: not using Autoheader"; + } + else + { + xsystem ($autoheader); + } + + + # ------------------ # + # Running automake. # + # ------------------ # + + if (!$uses_automake) + { + verb "$configure_ac: not using Automake"; + } + else + { + # We should always run automake, and let it decide whether it shall + # update the file or not. In fact, the effect of `$force' is already + # included in `$automake' via `--no-force'. + xsystem ($automake); + } + + + # -------------- # + # Running make. # + # -------------- # + + if ($run_make) + { + if (!-f "config.status") + { + verb "no config.status: cannot re-make"; + } + else + { + xsystem ("./config.status --recheck"); + xsystem ("./config.status"); + if (!-f "Makefile") + { + verb "no Makefile: cannot re-make"; + } + else + { + xsystem ("$make"); + } + } + } +} + + +# &autoreconf ($DIRECTORY) +# ------------------------ +# Reconf the $DIRECTORY. +sub autoreconf ($) +{ + my ($directory) = @_; + my $cwd = cwd; + + # The format for this message is not free: taken from Emacs, itself + # using GNU Make's format. + verb "Entering directory `$directory'"; + chdir $directory + or error "cannot chdir to $directory: $!"; + + autoreconf_current_directory; + + # The format is not free: taken from Emacs, itself using GNU Make's + # format. + verb "Leaving directory `$directory'"; + chdir $cwd + or error "cannot chdir to $cwd: $!"; +} + + +## ------ ## +## Main. ## +## ------ ## + +# When debugging, it is convenient that all the related temporary +# files be at the same place. +mktmpdir ('ar'); +$ENV{'TMPDIR'} = $tmp; +parse_args; + +# Autoreconf all the given configure.ac. Unless `--no-recursive' is passed, +# AC_CONFIG_SUBDIRS will be traversed in &autoreconf_current_directory. +$ENV{'AUTOM4TE'} = $autom4te; +for my $directory (@ARGV) + { + require_configure_ac ($directory); + autoreconf ($directory); + } + +### Setup "GNU" style for perl-mode and cperl-mode. +## Local Variables: +## perl-indent-level: 2 +## perl-continued-statement-offset: 2 +## perl-continued-brace-offset: 0 +## perl-brace-offset: 0 +## perl-brace-imaginary-offset: 0 +## perl-label-offset: -2 +## cperl-indent-level: 2 +## cperl-brace-offset: 0 +## cperl-continued-brace-offset: 0 +## cperl-label-offset: -2 +## cperl-extra-newline-before-brace: t +## cperl-merge-trailing-else: nil +## cperl-continued-statement-offset: 2 +## End: |