#! @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, 2000, 2001, 2002 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 2, 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. # Written by David J. MacKenzie. # Extended and rewritten in Perl by Akim Demaille. BEGIN { my $perllibdir = $ENV{'autom4te_perllibdir'} || '@datadir@'; unshift @INC, "$perllibdir"; } 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] ... [CONFIGURE-AC or DIRECTORY] ... Run `autoconf' (and `autoheader', `aclocal', `automake', `autopoint' (formerly `gettextize'), and `libtoolize' where appropriate) repeatedly to remake the GNU Build System files in the DIRECTORIES or the directory trees driven by CONFIGURE-AC (defaulting to `.'). By default, it only remakes those files that are older than their predecessors. If you install new versions of the GNU Build System, running `autoreconf' remakes 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 -s, --symlink instead of copying, install symbolic links Library directories: -B, --prepend-include=DIR prepend directory DIR to search path -I, --include=DIR append directory DIR to search path The environment variables AUTOCONF, AUTOHEADER, AUTOMAKE, ACLOCAL, AUTOPOINT, LIBTOOLIZE are honored. Report bugs to . "; # $VERSION # -------- $version = "autoreconf (@PACKAGE_NAME@) @VERSION@ Written by David J. MacKenzie and Akim Demaille. Copyright 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. "; # Lib files. my $autoconf = $ENV{'AUTOCONF'} || '@bindir@/@autoconf-name@'; my $autoheader = $ENV{'AUTOHEADER'} || '@bindir@/@autoheader-name@'; my $automake = $ENV{'AUTOMAKE'} || 'automake'; my $aclocal = $ENV{'ACLOCAL'} || 'aclocal'; my $libtoolize = $ENV{'LIBTOOLIZE'} || 'libtoolize'; my $autopoint = $ENV{'AUTOPOINT'} || 'autopoint'; # --install -- as --add-missing in other tools. my $install = 0; my @prepend_include; my @include; my $status = 0; # symlink -- when --install, use symlinks instead. my $symlink = 0; # The directory where autoreconf was run. my $cwd = cwd; ## ---------- ## ## Routines. ## ## ---------- ## # parse_args () # ------------- # Process any command line arguments. sub parse_args () { my $srcdir; getopt ('I|include|A|autoconf-dir|m|macrodir|l|localdir=s' => \@include, 'B|prepend-include=s' => \@prepend_include, 'i|install' => \$install, 's|symlink' => \$symlink); # Even if the user specified a configure.ac, trim to get the # directory, and look for configure.ac again. Because (i) the code # is simpler, and (ii) we are still able to diagnose simultaneous # presence of configure.ac and configure.in. @ARGV = map { /configure\.(ac|in)$/ ? dirname ($_) : $_ } @ARGV; push @ARGV, '.' unless @ARGV; if ($verbose && $debug) { xsystem ("$autoconf --version | sed 1q >&2"); print STDERR "\n"; xsystem ("$autoheader --version | sed 1q >&2"); print STDERR "\n"; xsystem ("$automake --version | sed 1q >&2"); print STDERR "\n"; xsystem ("$aclocal --version | sed 1q >&2"); print STDERR "\n"; xsystem ("$autopoint --version | sed 1q >&2"); print STDERR "\n"; xsystem ("$libtoolize --version | sed 1q >&2"); print STDERR "\n"; } # Dispatch autoreconf's option to the tools. # --include; $autoconf .= join (' --include=', '', @include); $autoconf .= join (' --prepend-include=', '', @prepend_include); $autoheader .= join (' --include=', '', @include); $autoheader .= join (' --prepend-include=', '', @prepend_include); # --install and --symlink; if ($install) { $automake .= ' --add-missing'; $automake .= ' --copy' unless $symlink; $libtoolize .= ' --copy' unless $symlink; } # --force; if ($force) { $autoconf .= ' --force'; $autoheader .= ' --force'; $automake .= ' --force-missing'; $autopoint .= ' --force'; $libtoolize .= ' --force'; } else { $automake .= ' --no-force'; } # --debug; if ($debug) { $autoconf .= ' --verbose --debug'; $autoheader .= ' --verbose --debug'; $automake .= ' --verbose'; $aclocal .= ' --verbose'; $libtoolize .= ' --debug'; } } # &autoreconf ($DIRECTORY) # ------------------------ # Reconf the $DIRECTORY. sub autoreconf ($) { my ($directory) = @_; verbose "working in `$directory'"; chdir $directory or error "cannot chdir to $directory: $!"; my $configure_ac = find_configure_ac; error "cannot find `configure.ac' in `$directory'" unless $configure_ac; # ---------------------- # # Is it using Autoconf? # # ---------------------- # my $uses_autoconf; my $configure_ac_file = new Autom4te::XFile $configure_ac; while ($_ = $configure_ac_file->getline) { if (/AC_INIT/) { $uses_autoconf = 1; last; } } if (!$uses_autoconf) { verbose "$configure_ac: not using Autoconf"; return; } # ----------------- # # 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 /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) { verbose "$configure_ac: not using aclocal"; } else { # Some filesystems have sub-second time stamps, and if so we may # run into trouble later, after we rerun autoconf and set the # time stamps of input files to be no greater than aclocal.m4, # because the time-stamp-setting operation (utime) has a # resolution of only 1 second. Work around the problem by # ensuring that there is at least a one-second window before the # time stamp of aclocal.m4t in which no file time stamps can # fall. sleep 1; xsystem ("$aclocal $aclocal_flags --output=aclocal.m4t"); # aclocal may produce no output. update_file ('aclocal.m4t', 'aclocal.m4') if -f 'aclocal.m4t'; } # We might have to rerun aclocal if Libtool or Gettext import 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 $uses_gettext; my $uses_libtool; my $uses_autoheader; my @subdir; my $traces = new Autom4te::XFile ("$autoconf" . join (' --trace=', '', 'AC_INIT', 'AM_GNU_GETTEXT', 'AC_PROG_LIBTOOL', 'AC_CONFIG_HEADERS', 'AC_CONFIG_SUBDIRS:AC_CONFIG_SUBDIRS:\$1') . ' |'); while ($_ = $traces->getline) { $uses_autoconf = 1 if /AC_INIT/; $uses_gettext = 1 if /AM_GNU_GETTEXT/; $uses_libtool = 1 if /AC_PROG_LIBTOOL/; $uses_autoheader = 1 if /AC_CONFIG_HEADERS/; push @subdir, split (' ', $1) if /AC_CONFIG_SUBDIRS:(.*)/; } # The subdirs are *optional*, they may not exist. foreach (@subdir) { if (-d) { verbose "$configure_ac: subdirectory $_ to autoreconf"; push @ARGV, catfile ($directory, $_); } else { verbose "$configure_ac: subdirectory $_ not present"; } } # ------------------- # # Running autopoint. # # ------------------- # if (!$uses_gettext) { verbose "$configure_ac: not using Gettext"; } elsif (!$install) { verbose "$configure_ac: not running autopoint: --install not given"; } else { xsystem "$autopoint"; $rerun_aclocal = 1; } # -------------------- # # Running libtoolize. # # -------------------- # if (!$uses_libtool) { verbose "$configure_ac: not using Libtool"; } elsif ($install) { xsystem ($libtoolize); $rerun_aclocal = 1; } else { verbose "$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) { verbose "$configure_ac: not using aclocal"; } else { xsystem ("$aclocal $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 $aclocal_local_dir = '.'; if ($aclocal_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, $file; } } } } } # ------------------ # # Running autoconf. # # ------------------ # # Don't try to be smarter than `autoconf', which does its own up to # date checks. # # We prefer running autoconf before autoheader, because (i) the # latter runs the former, and (ii) autoconf is stricter than # autoheader. So all in all, autoconf should give better error # messages. xsystem ($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 (!$uses_autoheader) { verbose "$configure_ac: not using Autoheader"; } else { xsystem ($autoheader); } # ------------------ # # Running automake. # # ------------------ # # Assumes that there is a Makefile.am in the topmost directory. if (!-f 'Makefile.am') { verbose "$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); } 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. A while loop, not a for, # since the list can change at runtime because of AC_CONFIG_SUBDIRS. autoreconf (shift @ARGV) while (@ARGV); ### 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: