ACIL FM

Nama	Ukuran	Aksi
ChannelDefs.pm	10.51 MB	View DL Edit
Channels.pm	19.99 MB	View DL Edit
Condition.pm	14.82 MB	View DL Edit
Config.pm	1.46 MB	View DL Edit
Configure_ac.pm	2.91 MB	View DL Edit
DisjConditions.pm	13.97 MB	View DL Edit
FileUtils.pm	8.89 MB	View DL Edit
General.pm	1.98 MB	View DL Edit
Getopt.pm	2.24 MB	View DL Edit
Item.pm	4.03 MB	View DL Edit
ItemDef.pm	1.93 MB	View DL Edit
Language.pm	2.75 MB	View DL Edit
Location.pm	5.37 MB	View DL Edit
Options.pm	11.21 MB	View DL Edit
Rule.pm	23.61 MB	View DL Edit
RuleDef.pm	2.23 MB	View DL Edit
VarDef.pm	8.36 MB	View DL Edit
Variable.pm	44.9 MB	View DL Edit
Version.pm	3.78 MB	View DL Edit
Wrap.pm	3.65 MB	View DL Edit
XFile.pm	7.29 MB	View DL Edit

Edit file: /usr/share/automake-1.16/Automake/Options.pm

# 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, see <https://www.gnu.org/licenses/>.

package Automake::Options;

use 5.006;
use strict;
use Exporter;
use Automake::Config;
use Automake::ChannelDefs;
use Automake::Channels;
use Automake::Version;

use vars qw (@ISA @EXPORT);

@ISA = qw (Exporter);
@EXPORT = qw (option global_option
              set_option set_global_option
              unset_option unset_global_option
              process_option_list process_global_option_list
              set_strictness $strictness $strictness_name
              &FOREIGN &GNU &GNITS);

=head1 NAME

Automake::Options - keep track of Automake options

=head1 SYNOPSIS

use Automake::Options;

# Option lookup and setting.
  $opt = option 'name';
  $opt = global_option 'name';
  set_option 'name', 'value';
  set_global_option 'name', 'value';
  unset_option 'name';
  unset_global_option 'name';

# Batch option setting.
  process_option_list $location, @names;
  process_global_option_list $location, @names;

# Strictness lookup and setting.
  set_strictness 'foreign';
  set_strictness 'gnu';
  set_strictness 'gnits';
  if ($strictness >= GNU) { ... }
  print "$strictness_name\n";

=head1 DESCRIPTION

This packages manages Automake's options and strictness settings.
Options can be either local or global.  Local options are set using an
C<AUTOMAKE_OPTIONS> variable in a F<Makefile.am> and apply only to
this F<Makefile.am>.  Global options are set from the command line or
passed as an argument to C<AM_INIT_AUTOMAKE>, they apply to all
F<Makefile.am>s.

=cut

# Values are the Automake::Location of the definition.
use vars '%_options';        # From AUTOMAKE_OPTIONS
use vars '%_global_options'; # From AM_INIT_AUTOMAKE or the command line.

# Whether process_option_list has already been called for the current
# Makefile.am.
use vars '$_options_processed';
# Whether process_global_option_list has already been called.
use vars '$_global_options_processed';

=head2 Constants

=over 4

=item FOREIGN

=item GNU

=item GNITS

Strictness constants used as values for C<$strictness>.

=back

=cut

# Constants to define the "strictness" level.
use constant FOREIGN => 0;
use constant GNU     => 1;
use constant GNITS   => 2;

=head2 Variables

=over 4

=item C<$strictness>

The current strictness.  One of C<FOREIGN>, C<GNU>, or C<GNITS>.

=item C<$strictness_name>

The current strictness name.  One of C<'foreign'>, C<'gnu'>, or C<'gnits'>.

=back

=cut

# Strictness levels.
use vars qw ($strictness $strictness_name);

# Strictness level as set on command line.
use vars qw ($_default_strictness $_default_strictness_name);

=head2 Functions

=over 4

=item C<Automake::Options::reset>

Reset the options variables for the next F<Makefile.am>.

In other words, this gets rid of all local options in use by the
previous F<Makefile.am>.

=cut

sub reset ()
{
  $_options_processed = 0;
  %_options = %_global_options;
  # The first time we are run,
  # remember the current setting as the default.
  if (defined $_default_strictness)
    {
      $strictness = $_default_strictness;
      $strictness_name = $_default_strictness_name;
    }
  else
    {
      $_default_strictness = $strictness;
      $_default_strictness_name = $strictness_name;
    }
}

=item C<$value = option ($name)>

=item C<$value = global_option ($name)>

Query the state of an option.  If the option is unset, this
returns the empty list.  Otherwise it returns the option's value,
as set by C<set_option> or C<set_global_option>.

Note that C<global_option> should be used only when it is
important to make sure an option hasn't been set locally.
Otherwise C<option> should be the standard function to
check for options (be they global or local).

=cut

sub option ($)
{
  my ($name) = @_;
  return () unless defined $_options{$name};
  return $_options{$name};
}

sub global_option ($)
{
  my ($name) = @_;
  return () unless defined $_global_options{$name};
  return $_global_options{$name};
}

=item C<set_option ($name, $value)>

=item C<set_global_option ($name, $value)>

Set an option.  By convention, C<$value> is usually the location
of the option definition.

=cut

sub set_option ($$)
{
  my ($name, $value) = @_;
  $_options{$name} = $value;
}

sub set_global_option ($$)
{
  my ($name, $value) = @_;
  $_global_options{$name} = $value;
}

=item C<unset_option ($name)>

=item C<unset_global_option ($name)>

Unset an option.

=cut

sub unset_option ($)
{
  my ($name) = @_;
  delete $_options{$name};
}

sub unset_global_option ($)
{
  my ($name) = @_;
  delete $_global_options{$name};
}

=item C<process_option_list (@list)>

=item C<process_global_option_list (@list)>

Process Automake's option lists.  C<@list> should be a list of hash
references with keys C<option> and C<where>, where C<option> is an
option as they occur in C<AUTOMAKE_OPTIONS> or C<AM_INIT_AUTOMAKE>,
and C<where> is the location where that option occurred.

These functions should be called at most once for each set of options
having the same precedence; i.e., do not call it twice for two options
from C<AM_INIT_AUTOMAKE>.

Return 0 on error, 1 otherwise.

=cut

# $BOOL
# _option_is_from_configure ($OPTION, $WHERE)
# ----------------------------------------------
# Check that the $OPTION given in location $WHERE is specified with
# AM_INIT_AUTOMAKE, not with AUTOMAKE_OPTIONS.
sub _option_is_from_configure ($$)
{
  my ($opt, $where)= @_;
  return 1
    if $where->get =~ /^configure\./;
  error $where,
        "option '$opt' can only be used as argument to AM_INIT_AUTOMAKE\n" .
        "but not in AUTOMAKE_OPTIONS makefile statements";
  return 0;
}

# $BOOL
# _is_valid_easy_option ($OPTION)
# -------------------------------
# Explicitly recognize valid automake options that require no
# special handling by '_process_option_list' below.
sub _is_valid_easy_option ($)
{
  my $opt = shift;
  return scalar grep { $opt eq $_ } qw(
    check-news
    color-tests
    dejagnu
    dist-bzip2
    dist-lzip
    dist-xz
    dist-zip
    dist-zstd
    info-in-builddir
    no-define
    no-dependencies
    no-dist
    no-dist-gzip
    no-exeext
    no-installinfo
    no-installman
    no-texinfo.tex
    nostdinc
    readme-alpha
    serial-tests
    parallel-tests
    silent-rules
    std-options
    subdir-objects
  );
}

# $BOOL
# _process_option_list (\%OPTIONS, @LIST)
# ------------------------------------------
# Process a list of options.  \%OPTIONS is the hash to fill with options
# data.  @LIST is a list of options as get passed to public subroutines
# process_option_list() and process_global_option_list() (see POD
# documentation above).
sub _process_option_list (\%@)
{
  my ($options, @list) = @_;
  my @warnings = ();
  my $ret = 1;

foreach my $h (@list)
    {
      local $_ = $h->{'option'};
      my $where = $h->{'where'};
      $options->{$_} = $where;
      if ($_ eq 'gnits' || $_ eq 'gnu' || $_ eq 'foreign')
        {
          set_strictness ($_);
        }
      # TODO: Remove this special check in Automake 3.0.
      elsif (/^(.*\/)?ansi2knr$/)
        {
          # Obsolete (and now removed) de-ANSI-fication support.
          error ($where,
                 "automatic de-ANSI-fication support has been removed");
          $ret = 0;
        }
      # TODO: Remove this special check in Automake 3.0.
      elsif ($_ eq 'cygnus')
        {
          error $where, "support for Cygnus-style trees has been removed";
          $ret = 0;
        }
      # TODO: Remove this special check in Automake 3.0.
      elsif ($_ eq 'dist-lzma')
        {
          error ($where, "support for lzma-compressed distribution " .
                         "archives has been removed");
          $ret = 0;
        }
      # TODO: Make this a fatal error in Automake 2.0.
      elsif ($_ eq 'dist-shar')
        {
          msg ('obsolete', $where,
               "support for shar distribution archives is deprecated.\n" .
               "  It will be removed in Automake 2.0");
        }
      # TODO: Make this a fatal error in Automake 2.0.
      elsif ($_ eq 'dist-tarZ')
        {
          msg ('obsolete', $where,
               "support for distribution archives compressed with " .
               "legacy program 'compress' is deprecated.\n" .
               "  It will be removed in Automake 2.0");
        }
      elsif (/^filename-length-max=(\d+)$/)
        {
          delete $options->{$_};
          $options->{'filename-length-max'} = [$_, $1];
        }
      elsif ($_ eq 'tar-v7' || $_ eq 'tar-ustar' || $_ eq 'tar-pax')
        {
          if (not _option_is_from_configure ($_, $where))
            {
              $ret = 0;
            }
          for my $opt ('tar-v7', 'tar-ustar', 'tar-pax')
            {
              next
                if $opt eq $_ or ! exists $options->{$opt};
              error ($where,
                     "options '$_' and '$opt' are mutually exclusive");
              $ret = 0;
            }
        }
      elsif (/^\d+\.\d+(?:\.\d+)?[a-z]?(?:-[A-Za-z0-9]+)?$/)
        {
          # Got a version number.
          if (Automake::Version::check ($VERSION, $&))
            {
              error ($where, "require Automake $_, but have $VERSION");
              $ret = 0;
            }
        }
      elsif (/^(?:--warnings=|-W)(.*)$/)
        {
          my @w = map { { cat => $_, loc => $where} } split (',', $1);
          push @warnings, @w;
        }
      elsif (! _is_valid_easy_option $_)
        {
          error ($where, "option '$_' not recognized");
          $ret = 0;
        }
    }

# We process warnings here, so that any explicitly-given warning setting
  # will take precedence over warning settings defined implicitly by the
  # strictness.
  foreach my $w (@warnings)
    {
      msg 'unsupported', $w->{'loc'},
          "unknown warning category '$w->{'cat'}'"
        if switch_warning $w->{cat};
    }

return $ret;
}

sub process_option_list (@)
{
  prog_error "local options already processed"
    if $_options_processed;
  $_options_processed = 1;
  _process_option_list (%_options, @_);
}

sub process_global_option_list (@)
{
  prog_error "global options already processed"
    if $_global_options_processed;
  $_global_options_processed = 1;
  _process_option_list (%_global_options, @_);
}

=item C<set_strictness ($name)>

Set the current strictness level.
C<$name> should be one of C<'foreign'>, C<'gnu'>, or C<'gnits'>.

=cut

# Set strictness.
sub set_strictness ($)
{
  $strictness_name = $_[0];

Automake::ChannelDefs::set_strictness ($strictness_name);

if ($strictness_name eq 'gnu')
    {
      $strictness = GNU;
    }
  elsif ($strictness_name eq 'gnits')
    {
      $strictness = GNITS;
    }
  elsif ($strictness_name eq 'foreign')
    {
      $strictness = FOREIGN;
    }
  else
    {
      prog_error "level '$strictness_name' not recognized";
    }
}

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