| 1 | #!./miniperl -w
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| 2 | use strict;
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| 3 | use vars qw(%Config $Config_SH_expanded);
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| 4 |
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| 5 | my $how_many_common = 22;
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| 6 |
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| 7 | # commonly used names to precache (and hence lookup fastest)
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| 8 | my %Common;
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| 9 |
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| 10 | while ($how_many_common--) {
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| 11 | $_ = <DATA>;
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| 12 | chomp;
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| 13 | /^(\S+):\s*(\d+)$/ or die "Malformed line '$_'";
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| 14 | $Common{$1} = $1;
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| 15 | }
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| 16 |
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| 17 | # names of things which may need to have slashes changed to double-colons
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| 18 | my %Extensions = map {($_,$_)}
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| 19 | qw(dynamic_ext static_ext extensions known_extensions);
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| 20 |
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| 21 | # allowed opts as well as specifies default and initial values
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| 22 | my %Allowed_Opts = (
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| 23 | 'cross' => '', # --cross=PLATFORM - crosscompiling for PLATFORM
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| 24 | 'glossary' => 1, # --no-glossary - no glossary file inclusion,
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| 25 | # for compactness
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| 26 | 'heavy' => '', # pathname of the Config_heavy.pl file
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| 27 | );
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| 28 |
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| 29 | sub opts {
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| 30 | # user specified options
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| 31 | my %given_opts = (
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| 32 | # --opt=smth
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| 33 | (map {/^--([\-_\w]+)=(.*)$/} @ARGV),
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| 34 | # --opt --no-opt --noopt
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| 35 | (map {/^no-?(.*)$/i?($1=>0):($_=>1)} map {/^--([\-_\w]+)$/} @ARGV),
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| 36 | );
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| 37 |
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| 38 | my %opts = (%Allowed_Opts, %given_opts);
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| 39 |
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| 40 | for my $opt (grep {!exists $Allowed_Opts{$_}} keys %given_opts) {
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| 41 | die "option '$opt' is not recognized";
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| 42 | }
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| 43 | @ARGV = grep {!/^--/} @ARGV;
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| 44 |
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| 45 | return %opts;
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| 46 | }
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| 47 |
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| 48 |
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| 49 | my %Opts = opts();
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| 50 |
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| 51 | my ($Config_PM, $Config_heavy);
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| 52 | my $Glossary = $ARGV[1] || 'Porting/Glossary';
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| 53 |
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| 54 | if ($Opts{cross}) {
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| 55 | # creating cross-platform config file
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| 56 | mkdir "xlib";
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| 57 | mkdir "xlib/$Opts{cross}";
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| 58 | $Config_PM = $ARGV[0] || "xlib/$Opts{cross}/Config.pm";
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| 59 | }
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| 60 | else {
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| 61 | $Config_PM = $ARGV[0] || 'lib/Config.pm';
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| 62 | }
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| 63 | if ($Opts{heavy}) {
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| 64 | $Config_heavy = $Opts{heavy};
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| 65 | }
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| 66 | else {
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| 67 | ($Config_heavy = $Config_PM) =~ s!\.pm$!_heavy.pl!;
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| 68 | die "Can't automatically determine name for Config_heavy.pl from '$Config_PM'"
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| 69 | if $Config_heavy eq $Config_PM;
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| 70 | }
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| 71 |
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| 72 | open CONFIG, ">$Config_PM" or die "Can't open $Config_PM: $!\n";
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| 73 | open CONFIG_HEAVY, ">$Config_heavy" or die "Can't open $Config_heavy: $!\n";
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| 74 |
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| 75 | print CONFIG_HEAVY <<'ENDOFBEG';
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| 76 | # This file was created by configpm when Perl was built. Any changes
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| 77 | # made to this file will be lost the next time perl is built.
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| 78 |
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| 79 | package Config;
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| 80 | use strict;
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| 81 | # use warnings; Pulls in Carp
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| 82 | # use vars pulls in Carp
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| 83 | ENDOFBEG
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| 84 |
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| 85 | my $myver = sprintf "v%vd", $^V;
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| 86 |
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| 87 | printf CONFIG <<'ENDOFBEG', ($myver) x 3;
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| 88 | # This file was created by configpm when Perl was built. Any changes
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| 89 | # made to this file will be lost the next time perl is built.
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| 90 |
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| 91 | package Config;
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| 92 | use strict;
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| 93 | # use warnings; Pulls in Carp
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| 94 | # use vars pulls in Carp
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| 95 | @Config::EXPORT = qw(%%Config);
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| 96 | @Config::EXPORT_OK = qw(myconfig config_sh config_vars config_re);
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| 97 |
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| 98 | # Need to stub all the functions to make code such as print Config::config_sh
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| 99 | # keep working
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| 100 |
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| 101 | sub myconfig;
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| 102 | sub config_sh;
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| 103 | sub config_vars;
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| 104 | sub config_re;
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| 105 |
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| 106 | my %%Export_Cache = map {($_ => 1)} (@Config::EXPORT, @Config::EXPORT_OK);
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| 107 |
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| 108 | our %%Config;
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| 109 |
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| 110 | # Define our own import method to avoid pulling in the full Exporter:
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| 111 | sub import {
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| 112 | my $pkg = shift;
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| 113 | @_ = @Config::EXPORT unless @_;
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| 114 |
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| 115 | my @funcs = grep $_ ne '%%Config', @_;
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| 116 | my $export_Config = @funcs < @_ ? 1 : 0;
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| 117 |
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| 118 | no strict 'refs';
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| 119 | my $callpkg = caller(0);
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| 120 | foreach my $func (@funcs) {
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| 121 | die sprintf qq{"%%s" is not exported by the %%s module\n},
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| 122 | $func, __PACKAGE__ unless $Export_Cache{$func};
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| 123 | *{$callpkg.'::'.$func} = \&{$func};
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| 124 | }
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| 125 |
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| 126 | *{"$callpkg\::Config"} = \%%Config if $export_Config;
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| 127 | return;
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| 128 | }
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| 129 |
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| 130 | die "Perl lib version (%s) doesn't match executable version ($])"
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| 131 | unless $^V;
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| 132 |
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| 133 | $^V eq %s
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| 134 | or die "Perl lib version (%s) doesn't match executable version (" .
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| 135 | sprintf("v%%vd",$^V) . ")";
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| 136 |
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| 137 | ENDOFBEG
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| 138 |
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| 139 |
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| 140 | my @non_v = ();
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| 141 | my @v_others = ();
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| 142 | my $in_v = 0;
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| 143 | my %Data = ();
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| 144 |
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| 145 |
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| 146 | my %seen_quotes;
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| 147 | {
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| 148 | my ($name, $val);
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| 149 | open(CONFIG_SH, 'config.sh') || die "Can't open config.sh: $!";
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| 150 | while (<CONFIG_SH>) {
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| 151 | next if m:^#!/bin/sh:;
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| 152 |
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| 153 | # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure.
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| 154 | s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/ or m/^(\w+)='(.*)'$/;
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| 155 | my($k, $v) = ($1, $2);
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| 156 |
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| 157 | # grandfather PATCHLEVEL and SUBVERSION and CONFIG
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| 158 | if ($k) {
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| 159 | if ($k eq 'PERL_VERSION') {
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| 160 | push @v_others, "PATCHLEVEL='$v'\n";
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| 161 | }
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| 162 | elsif ($k eq 'PERL_SUBVERSION') {
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| 163 | push @v_others, "SUBVERSION='$v'\n";
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| 164 | }
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| 165 | elsif ($k eq 'PERL_CONFIG_SH') {
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| 166 | push @v_others, "CONFIG='$v'\n";
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| 167 | }
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| 168 | }
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| 169 |
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| 170 | # We can delimit things in config.sh with either ' or ".
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| 171 | unless ($in_v or m/^(\w+)=(['"])(.*\n)/){
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| 172 | push(@non_v, "#$_"); # not a name='value' line
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| 173 | next;
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| 174 | }
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| 175 | my $quote = $2;
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| 176 | if ($in_v) {
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| 177 | $val .= $_;
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| 178 | }
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| 179 | else {
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| 180 | ($name,$val) = ($1,$3);
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| 181 | }
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| 182 | $in_v = $val !~ /$quote\n/;
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| 183 | next if $in_v;
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| 184 |
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| 185 | s,/,::,g if $Extensions{$name};
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| 186 |
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| 187 | $val =~ s/$quote\n?\z//;
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| 188 |
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| 189 | my $line = "$name=$quote$val$quote\n";
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| 190 | push(@v_others, $line);
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| 191 | $seen_quotes{$quote}++;
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| 192 | }
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| 193 | close CONFIG_SH;
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| 194 | }
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| 195 |
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| 196 | # This is somewhat grim, but I want the code for parsing config.sh here and
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| 197 | # now so that I can expand $Config{ivsize} and $Config{ivtype}
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| 198 |
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| 199 | my $fetch_string = <<'EOT';
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| 200 |
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| 201 | # Search for it in the big string
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| 202 | sub fetch_string {
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| 203 | my($self, $key) = @_;
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| 204 |
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| 205 | EOT
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| 206 |
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| 207 | if ($seen_quotes{'"'}) {
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| 208 | # We need the full ' and " code
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| 209 | $fetch_string .= <<'EOT';
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| 210 | my $quote_type = "'";
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| 211 | my $marker = "$key=";
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| 212 |
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| 213 | # Check for the common case, ' delimited
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| 214 | my $start = index($Config_SH_expanded, "\n$marker$quote_type");
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| 215 | # If that failed, check for " delimited
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| 216 | if ($start == -1) {
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| 217 | $quote_type = '"';
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| 218 | $start = index($Config_SH_expanded, "\n$marker$quote_type");
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| 219 | }
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| 220 | EOT
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| 221 | } else {
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| 222 | $fetch_string .= <<'EOT';
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| 223 | # We only have ' delimted.
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| 224 | my $start = index($Config_SH_expanded, "\n$key=\'");
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| 225 | EOT
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| 226 | }
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| 227 | $fetch_string .= <<'EOT';
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| 228 | # Start can never be -1 now, as we've rigged the long string we're
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| 229 | # searching with an initial dummy newline.
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| 230 | return undef if $start == -1;
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| 231 |
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| 232 | $start += length($key) + 3;
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| 233 |
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| 234 | EOT
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| 235 | if (!$seen_quotes{'"'}) {
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| 236 | # Don't need the full ' and " code, or the eval expansion.
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| 237 | $fetch_string .= <<'EOT';
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| 238 | my $value = substr($Config_SH_expanded, $start,
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| 239 | index($Config_SH_expanded, "'\n", $start)
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| 240 | - $start);
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| 241 | EOT
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| 242 | } else {
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| 243 | $fetch_string .= <<'EOT';
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| 244 | my $value = substr($Config_SH_expanded, $start,
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| 245 | index($Config_SH_expanded, "$quote_type\n", $start)
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| 246 | - $start);
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| 247 |
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| 248 | # If we had a double-quote, we'd better eval it so escape
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| 249 | # sequences and such can be interpolated. Since the incoming
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| 250 | # value is supposed to follow shell rules and not perl rules,
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| 251 | # we escape any perl variable markers
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| 252 | if ($quote_type eq '"') {
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| 253 | $value =~ s/\$/\\\$/g;
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| 254 | $value =~ s/\@/\\\@/g;
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| 255 | eval "\$value = \"$value\"";
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| 256 | }
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| 257 | EOT
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| 258 | }
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| 259 | $fetch_string .= <<'EOT';
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| 260 | # So we can say "if $Config{'foo'}".
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| 261 | $value = undef if $value eq 'undef';
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| 262 | $self->{$key} = $value; # cache it
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| 263 | }
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| 264 | EOT
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| 265 |
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| 266 | eval $fetch_string;
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| 267 | die if $@;
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| 268 |
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| 269 | # Calculation for the keys for byteorder
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| 270 | # This is somewhat grim, but I need to run fetch_string here.
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| 271 | our $Config_SH_expanded = join "\n", '', @v_others;
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| 272 |
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| 273 | my $t = fetch_string ({}, 'ivtype');
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| 274 | my $s = fetch_string ({}, 'ivsize');
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| 275 |
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| 276 | # byteorder does exist on its own but we overlay a virtual
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| 277 | # dynamically recomputed value.
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| 278 |
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| 279 | # However, ivtype and ivsize will not vary for sane fat binaries
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| 280 |
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| 281 | my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I';
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| 282 |
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| 283 | my $byteorder_code;
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| 284 | if ($s == 4 || $s == 8) {
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| 285 | my $list = join ',', reverse(2..$s);
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| 286 | my $format = 'a'x$s;
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| 287 | $byteorder_code = <<"EOT";
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| 288 |
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| 289 | my \$i = 0;
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| 290 | foreach my \$c ($list) { \$i |= ord(\$c); \$i <<= 8 }
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| 291 | \$i |= ord(1);
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| 292 | our \$byteorder = join('', unpack('$format', pack('$f', \$i)));
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| 293 | EOT
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| 294 | } else {
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| 295 | $byteorder_code = "our \$byteorder = '?'x$s;\n";
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| 296 | }
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| 297 |
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| 298 | print CONFIG_HEAVY @non_v, "\n";
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| 299 |
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| 300 | # copy config summary format from the myconfig.SH script
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| 301 | print CONFIG_HEAVY "our \$summary = <<'!END!';\n";
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| 302 | open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!";
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| 303 | 1 while defined($_ = <MYCONFIG>) && !/^Summary of/;
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| 304 | do { print CONFIG_HEAVY $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/;
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| 305 | close(MYCONFIG);
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| 306 |
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| 307 | print CONFIG_HEAVY "\n!END!\n", <<'EOT';
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| 308 | my $summary_expanded;
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| 309 |
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| 310 | sub myconfig {
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| 311 | return $summary_expanded if $summary_expanded;
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| 312 | ($summary_expanded = $summary) =~ s{\$(\w+)}
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| 313 | { my $c = $Config::Config{$1}; defined($c) ? $c : 'undef' }ge;
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| 314 | $summary_expanded;
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| 315 | }
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| 316 |
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| 317 | local *_ = \my $a;
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| 318 | $_ = <<'!END!';
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| 319 | EOT
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| 320 |
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| 321 | print CONFIG_HEAVY join('', sort @v_others), "!END!\n";
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| 322 |
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| 323 | # Only need the dynamic byteorder code in Config.pm if 'byteorder' is one of
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| 324 | # the precached keys
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| 325 | if ($Common{byteorder}) {
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| 326 | print CONFIG $byteorder_code;
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| 327 | } else {
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| 328 | print CONFIG_HEAVY $byteorder_code;
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| 329 | }
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| 330 |
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| 331 | print CONFIG_HEAVY <<'EOT';
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| 332 | s/(byteorder=)(['"]).*?\2/$1$2$Config::byteorder$2/m;
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| 333 |
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| 334 | my $config_sh_len = length $_;
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| 335 |
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| 336 | our $Config_SH_expanded = "\n$_" . << 'EOVIRTUAL';
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| 337 | EOT
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| 338 |
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| 339 | foreach my $prefix (qw(ccflags ldflags)) {
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| 340 | my $value = fetch_string ({}, $prefix);
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| 341 | my $withlargefiles = fetch_string ({}, $prefix . "_uselargefiles");
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| 342 | $value =~ s/\Q$withlargefiles\E\b//;
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| 343 | print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n";
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| 344 | }
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| 345 |
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| 346 | foreach my $prefix (qw(libs libswanted)) {
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| 347 | my $value = fetch_string ({}, $prefix);
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| 348 | my @lflibswanted
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| 349 | = split(' ', fetch_string ({}, 'libswanted_uselargefiles'));
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| 350 | if (@lflibswanted) {
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| 351 | my %lflibswanted;
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| 352 | @lflibswanted{@lflibswanted} = ();
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| 353 | if ($prefix eq 'libs') {
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| 354 | my @libs = grep { /^-l(.+)/ &&
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| 355 | not exists $lflibswanted{$1} }
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| 356 | split(' ', fetch_string ({}, 'libs'));
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| 357 | $value = join(' ', @libs);
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| 358 | } else {
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| 359 | my @libswanted = grep { not exists $lflibswanted{$_} }
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| 360 | split(' ', fetch_string ({}, 'libswanted'));
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| 361 | $value = join(' ', @libswanted);
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| 362 | }
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| 363 | }
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| 364 | print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n";
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| 365 | }
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| 366 |
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| 367 | print CONFIG_HEAVY "EOVIRTUAL\n";
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| 368 |
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| 369 | print CONFIG_HEAVY $fetch_string;
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| 370 |
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| 371 | print CONFIG <<'ENDOFEND';
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| 372 |
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| 373 | sub FETCH {
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| 374 | my($self, $key) = @_;
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| 375 |
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| 376 | # check for cached value (which may be undef so we use exists not defined)
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| 377 | return $self->{$key} if exists $self->{$key};
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| 378 |
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| 379 | return $self->fetch_string($key);
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| 380 | }
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| 381 | ENDOFEND
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| 382 |
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| 383 | print CONFIG_HEAVY <<'ENDOFEND';
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| 384 |
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| 385 | my $prevpos = 0;
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| 386 |
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| 387 | sub FIRSTKEY {
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| 388 | $prevpos = 0;
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| 389 | substr($Config_SH_expanded, 1, index($Config_SH_expanded, '=') - 1 );
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| 390 | }
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| 391 |
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| 392 | sub NEXTKEY {
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| 393 | ENDOFEND
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| 394 | if ($seen_quotes{'"'}) {
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| 395 | print CONFIG_HEAVY <<'ENDOFEND';
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| 396 | # Find out how the current key's quoted so we can skip to its end.
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| 397 | my $quote = substr($Config_SH_expanded,
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| 398 | index($Config_SH_expanded, "=", $prevpos)+1, 1);
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| 399 | my $pos = index($Config_SH_expanded, qq($quote\n), $prevpos) + 2;
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| 400 | ENDOFEND
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| 401 | } else {
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| 402 | # Just ' quotes, so it's much easier.
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| 403 | print CONFIG_HEAVY <<'ENDOFEND';
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| 404 | my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2;
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| 405 | ENDOFEND
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| 406 | }
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| 407 | print CONFIG_HEAVY <<'ENDOFEND';
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| 408 | my $len = index($Config_SH_expanded, "=", $pos) - $pos;
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| 409 | $prevpos = $pos;
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| 410 | $len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef;
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| 411 | }
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| 412 |
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| 413 | sub EXISTS {
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| 414 | return 1 if exists($_[0]->{$_[1]});
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| 415 |
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| 416 | return(index($Config_SH_expanded, "\n$_[1]='") != -1
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| 417 | ENDOFEND
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| 418 | if ($seen_quotes{'"'}) {
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| 419 | print CONFIG_HEAVY <<'ENDOFEND';
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| 420 | or index($Config_SH_expanded, "\n$_[1]=\"") != -1
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| 421 | ENDOFEND
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| 422 | }
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| 423 | print CONFIG_HEAVY <<'ENDOFEND';
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| 424 | );
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|---|
| 425 | }
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| 426 |
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| 427 | sub STORE { die "\%Config::Config is read-only\n" }
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| 428 | *DELETE = \&STORE;
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| 429 | *CLEAR = \&STORE;
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| 430 |
|
|---|
| 431 |
|
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| 432 | sub config_sh {
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| 433 | substr $Config_SH_expanded, 1, $config_sh_len;
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| 434 | }
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| 435 |
|
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| 436 | sub config_re {
|
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| 437 | my $re = shift;
|
|---|
| 438 | return map { chomp; $_ } grep eval{ /^(?:$re)=/ }, split /^/,
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| 439 | $Config_SH_expanded;
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|---|
| 440 | }
|
|---|
| 441 |
|
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| 442 | sub config_vars {
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| 443 | # implements -V:cfgvar option (see perlrun -V:)
|
|---|
| 444 | foreach (@_) {
|
|---|
| 445 | # find optional leading, trailing colons; and query-spec
|
|---|
| 446 | my ($notag,$qry,$lncont) = m/^(:)?(.*?)(:)?$/; # flags fore and aft,
|
|---|
| 447 | # map colon-flags to print decorations
|
|---|
| 448 | my $prfx = $notag ? '': "$qry="; # tag-prefix for print
|
|---|
| 449 | my $lnend = $lncont ? ' ' : ";\n"; # line ending for print
|
|---|
| 450 |
|
|---|
| 451 | # all config-vars are by definition \w only, any \W means regex
|
|---|
| 452 | if ($qry =~ /\W/) {
|
|---|
| 453 | my @matches = config_re($qry);
|
|---|
| 454 | print map "$_$lnend", @matches ? @matches : "$qry: not found" if !$notag;
|
|---|
| 455 | print map { s/\w+=//; "$_$lnend" } @matches ? @matches : "$qry: not found" if $notag;
|
|---|
| 456 | } else {
|
|---|
| 457 | my $v = (exists $Config::Config{$qry}) ? $Config::Config{$qry}
|
|---|
| 458 | : 'UNKNOWN';
|
|---|
| 459 | $v = 'undef' unless defined $v;
|
|---|
| 460 | print "${prfx}'${v}'$lnend";
|
|---|
| 461 | }
|
|---|
| 462 | }
|
|---|
| 463 | }
|
|---|
| 464 |
|
|---|
| 465 | # Called by the real AUTOLOAD
|
|---|
| 466 | sub launcher {
|
|---|
| 467 | undef &AUTOLOAD;
|
|---|
| 468 | goto \&$Config::AUTOLOAD;
|
|---|
| 469 | }
|
|---|
| 470 |
|
|---|
| 471 | 1;
|
|---|
| 472 | ENDOFEND
|
|---|
| 473 |
|
|---|
| 474 | if ($^O eq 'os2') {
|
|---|
| 475 | print CONFIG <<'ENDOFSET';
|
|---|
| 476 | my %preconfig;
|
|---|
| 477 | #if ($OS2::is_aout) {
|
|---|
| 478 | # my ($value, $v) = $Config_SH_expanded =~ m/^used_aout='(.*)'\s*$/m;
|
|---|
| 479 | # for (split ' ', $value) {
|
|---|
| 480 | # ($v) = $Config_SH_expanded =~ m/^aout_$_='(.*)'\s*$/m;
|
|---|
| 481 | # $preconfig{$_} = $v eq 'undef' ? undef : $v;
|
|---|
| 482 | # }
|
|---|
| 483 | #}
|
|---|
| 484 | #$preconfig{d_fork} = undef unless $OS2::can_fork; # Some funny cases can't
|
|---|
| 485 | sub TIEHASH { bless {%preconfig} }
|
|---|
| 486 | ENDOFSET
|
|---|
| 487 | # Extract the name of the DLL from the makefile to avoid duplication
|
|---|
| 488 | my ($f) = grep -r, qw(GNUMakefile Makefile);
|
|---|
| 489 | my $dll;
|
|---|
| 490 | if (open my $fh, '<', $f) {
|
|---|
| 491 | while (<$fh>) {
|
|---|
| 492 | $dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/;
|
|---|
| 493 | }
|
|---|
| 494 | }
|
|---|
| 495 | print CONFIG <<ENDOFSET if $dll;
|
|---|
| 496 | \$preconfig{dll_name} = '$dll';
|
|---|
| 497 | ENDOFSET
|
|---|
| 498 | } else {
|
|---|
| 499 | print CONFIG <<'ENDOFSET';
|
|---|
| 500 | sub TIEHASH {
|
|---|
| 501 | bless $_[1], $_[0];
|
|---|
| 502 | }
|
|---|
| 503 | ENDOFSET
|
|---|
| 504 | }
|
|---|
| 505 |
|
|---|
| 506 | foreach my $key (keys %Common) {
|
|---|
| 507 | my $value = fetch_string ({}, $key);
|
|---|
| 508 | # Is it safe on the LHS of => ?
|
|---|
| 509 | my $qkey = $key =~ /^[A-Za-z_][A-Za-z0-9_]*$/ ? $key : "'$key'";
|
|---|
| 510 | if (defined $value) {
|
|---|
| 511 | # Quote things for a '' string
|
|---|
| 512 | $value =~ s!\\!\\\\!g;
|
|---|
| 513 | $value =~ s!'!\\'!g;
|
|---|
| 514 | $value = "'$value'";
|
|---|
| 515 | } else {
|
|---|
| 516 | $value = "undef";
|
|---|
| 517 | }
|
|---|
| 518 | $Common{$key} = "$qkey => $value";
|
|---|
| 519 | }
|
|---|
| 520 |
|
|---|
| 521 | if ($Common{byteorder}) {
|
|---|
| 522 | $Common{byteorder} = 'byteorder => $byteorder';
|
|---|
| 523 | }
|
|---|
| 524 | my $fast_config = join '', map { " $_,\n" } sort values %Common;
|
|---|
| 525 |
|
|---|
| 526 | # Sanity check needed to stop an infite loop if Config_heavy.pl fails to define
|
|---|
| 527 | # &launcher for some reason (eg it got truncated)
|
|---|
| 528 | print CONFIG sprintf <<'ENDOFTIE', $fast_config;
|
|---|
| 529 |
|
|---|
| 530 | sub DESTROY { }
|
|---|
|
|---|
