#!./miniperl -w
+#
+# configpm
+#
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+# 2002, 2003, 2004, 2005, 2006, 2007 Larry Wall and others.
+#
+#
+# Regenerate the files
+#
+# lib/Config.pm
+# lib/Config_heavy.pl
+# lib/Config.pod
+# lib/Cross.pm (optionally)
+#
+#
+# from the contents of the static files
+#
+# Porting/Glossary
+# myconfig.SH
+#
+# and from the contents of the Configure-generated file
+#
+# config.sh
+#
+# Note that output directory is xlib/[cross-name]/ for cross-compiling
+#
+# It will only update Config.pm and Config_heavy.pl if the contents of
+# either file would be different. Note that *both* files are updated in
+# this case, since for example an extension makefile that has a dependency
+# on Config.pm should trigger even if only Config_heavy.pl has changed.
+
+sub usage { die <<EOF }
+usage: $0 [ options ]
+ --cross=PLATFORM cross-compile for a different platform
+ --no-glossary don't include Porting/Glossary in lib/Config.pod
+EOF
+
use strict;
use vars qw(%Config $Config_SH_expanded);
'cross' => '', # --cross=PLATFORM - crosscompiling for PLATFORM
'glossary' => 1, # --no-glossary - no glossary file inclusion,
# for compactness
- 'heavy' => '', # pathname of the Config_heavy.pl file
);
sub opts {
my %opts = (%Allowed_Opts, %given_opts);
for my $opt (grep {!exists $Allowed_Opts{$_}} keys %given_opts) {
- die "option '$opt' is not recognized";
+ warn "option '$opt' is not recognized";
+ usage;
}
@ARGV = grep {!/^--/} @ARGV;
my %Opts = opts();
-my ($Config_PM, $Config_heavy);
-my $Glossary = $ARGV[1] || 'Porting/Glossary';
+my ($Config_SH, $Config_PM, $Config_heavy, $Config_POD);
+my $Glossary = 'Porting/Glossary';
if ($Opts{cross}) {
# creating cross-platform config file
mkdir "xlib";
mkdir "xlib/$Opts{cross}";
- $Config_PM = $ARGV[0] || "xlib/$Opts{cross}/Config.pm";
-}
-else {
- $Config_PM = $ARGV[0] || 'lib/Config.pm';
-}
-if ($Opts{heavy}) {
- $Config_heavy = $Opts{heavy};
+ $Config_PM = "xlib/$Opts{cross}/Config.pm";
+ $Config_POD = "xlib/$Opts{cross}/Config.pod";
+ $Config_SH = "Cross/config-$Opts{cross}.sh";
}
else {
- ($Config_heavy = $Config_PM) =~ s!\.pm$!_heavy.pl!;
- die "Can't automatically determine name for Config_heavy.pl from '$Config_PM'"
- if $Config_heavy eq $Config_PM;
+ $Config_PM = "lib/Config.pm";
+ $Config_POD = "lib/Config.pod";
+ $Config_SH = "config.sh";
}
+($Config_heavy = $Config_PM) =~ s/\.pm$/_heavy.pl/;
+die "Can't automatically determine name for Config_heavy.pl from '$Config_PM'"
+ if $Config_heavy eq $Config_PM;
-open CONFIG, ">$Config_PM" or die "Can't open $Config_PM: $!\n";
-open CONFIG_HEAVY, ">$Config_heavy" or die "Can't open $Config_heavy: $!\n";
+my $config_txt;
+my $heavy_txt;
-print CONFIG_HEAVY <<'ENDOFBEG';
+$heavy_txt .= <<'ENDOFBEG';
# This file was created by configpm when Perl was built. Any changes
# made to this file will be lost the next time perl is built.
# use vars pulls in Carp
ENDOFBEG
-my $myver = sprintf "v%vd", $^V;
+my $myver = sprintf "%vd", $^V;
-printf CONFIG <<'ENDOFBEG', ($myver) x 3;
+$config_txt .= sprintf <<'ENDOFBEG', ($myver) x 3;
# This file was created by configpm when Perl was built. Any changes
# made to this file will be lost the next time perl is built.
@Config::EXPORT = qw(%%Config);
@Config::EXPORT_OK = qw(myconfig config_sh config_vars config_re);
+# Need to stub all the functions to make code such as print Config::config_sh
+# keep working
+
+sub myconfig;
+sub config_sh;
+sub config_vars;
+sub config_re;
+
my %%Export_Cache = map {($_ => 1)} (@Config::EXPORT, @Config::EXPORT_OK);
our %%Config;
my @non_v = ();
-my @v_fast = ();
my @v_others = ();
my $in_v = 0;
my %Data = ();
-# This is somewhat grim, but I want the code for parsing config.sh here and
-# now so that I can expand $Config{ivsize} and $Config{ivtype}
-
-my $fetch_string = <<'EOT';
-
-# Search for it in the big string
-sub fetch_string {
- my($self, $key) = @_;
-
- my $quote_type = "'";
- my $marker = "$key=";
-
- # Check for the common case, ' delimited
- my $start = index($Config_SH_expanded, "\n$marker$quote_type");
- # If that failed, check for " delimited
- if ($start == -1) {
- $quote_type = '"';
- $start = index($Config_SH_expanded, "\n$marker$quote_type");
- }
- # Start can never be -1 now, as we've rigged the long string we're
- # searching with an initial dummy newline.
- return undef if $start == -1;
-
- $start += length($marker) + 2;
-
- my $value = substr($Config_SH_expanded, $start,
- index($Config_SH_expanded, "$quote_type\n", $start)
- - $start);
-
- # If we had a double-quote, we'd better eval it so escape
- # sequences and such can be interpolated. Since the incoming
- # value is supposed to follow shell rules and not perl rules,
- # we escape any perl variable markers
- if ($quote_type eq '"') {
- $value =~ s/\$/\\\$/g;
- $value =~ s/\@/\\\@/g;
- eval "\$value = \"$value\"";
- }
-
- # So we can say "if $Config{'foo'}".
- $value = undef if $value eq 'undef';
- $self->{$key} = $value; # cache it
-}
-EOT
-
-eval $fetch_string;
-die if $@;
+my %seen_quotes;
{
my ($name, $val);
- open(CONFIG_SH, 'config.sh') || die "Can't open config.sh: $!";
+ open(CONFIG_SH, $Config_SH) || die "Can't open $Config_SH: $!";
while (<CONFIG_SH>) {
next if m:^#!/bin/sh:;
$val =~ s/$quote\n?\z//;
my $line = "$name=$quote$val$quote\n";
- if (!$Common{$name}){
- push(@v_others, $line);
- }
- else {
- push(@v_fast, $line);
- }
+ push(@v_others, $line);
+ $seen_quotes{$quote}++;
}
close CONFIG_SH;
}
+# This is somewhat grim, but I want the code for parsing config.sh here and
+# now so that I can expand $Config{ivsize} and $Config{ivtype}
+
+my $fetch_string = <<'EOT';
+
+# Search for it in the big string
+sub fetch_string {
+ my($self, $key) = @_;
+
+EOT
+
+if ($seen_quotes{'"'}) {
+ # We need the full ' and " code
+ $fetch_string .= <<'EOT';
+ my $quote_type = "'";
+ my $marker = "$key=";
+
+ # Check for the common case, ' delimited
+ my $start = index($Config_SH_expanded, "\n$marker$quote_type");
+ # If that failed, check for " delimited
+ if ($start == -1) {
+ $quote_type = '"';
+ $start = index($Config_SH_expanded, "\n$marker$quote_type");
+ }
+EOT
+} else {
+ $fetch_string .= <<'EOT';
+ # We only have ' delimted.
+ my $start = index($Config_SH_expanded, "\n$key=\'");
+EOT
+}
+$fetch_string .= <<'EOT';
+ # Start can never be -1 now, as we've rigged the long string we're
+ # searching with an initial dummy newline.
+ return undef if $start == -1;
+
+ $start += length($key) + 3;
+
+EOT
+if (!$seen_quotes{'"'}) {
+ # Don't need the full ' and " code, or the eval expansion.
+ $fetch_string .= <<'EOT';
+ my $value = substr($Config_SH_expanded, $start,
+ index($Config_SH_expanded, "'\n", $start)
+ - $start);
+EOT
+} else {
+ $fetch_string .= <<'EOT';
+ my $value = substr($Config_SH_expanded, $start,
+ index($Config_SH_expanded, "$quote_type\n", $start)
+ - $start);
+
+ # If we had a double-quote, we'd better eval it so escape
+ # sequences and such can be interpolated. Since the incoming
+ # value is supposed to follow shell rules and not perl rules,
+ # we escape any perl variable markers
+ if ($quote_type eq '"') {
+ $value =~ s/\$/\\\$/g;
+ $value =~ s/\@/\\\@/g;
+ eval "\$value = \"$value\"";
+ }
+EOT
+}
+$fetch_string .= <<'EOT';
+ # So we can say "if $Config{'foo'}".
+ $value = undef if $value eq 'undef';
+ $self->{$key} = $value; # cache it
+}
+EOT
+
+eval $fetch_string;
+die if $@;
# Calculation for the keys for byteorder
# This is somewhat grim, but I need to run fetch_string here.
-our $Config_SH_expanded = join "\n", '', @v_fast, @v_others;
+our $Config_SH_expanded = join "\n", '', @v_others;
my $t = fetch_string ({}, 'ivtype');
my $s = fetch_string ({}, 'ivsize');
my $list = join ',', reverse(2..$s);
my $format = 'a'x$s;
$byteorder_code = <<"EOT";
+
my \$i = 0;
foreach my \$c ($list) { \$i |= ord(\$c); \$i <<= 8 }
\$i |= ord(1);
} else {
$byteorder_code = "our \$byteorder = '?'x$s;\n";
}
-print CONFIG $byteorder_code;
-print CONFIG_HEAVY @non_v, "\n";
+my @need_relocation;
+
+if (fetch_string({},'userelocatableinc')) {
+ foreach my $what (qw(prefixexp
+
+ archlibexp
+ html1direxp
+ html3direxp
+ man1direxp
+ man3direxp
+ privlibexp
+ scriptdirexp
+ sitearchexp
+ sitebinexp
+ sitehtml1direxp
+ sitehtml3direxp
+ sitelibexp
+ siteman1direxp
+ siteman3direxp
+ sitescriptexp
+ vendorarchexp
+ vendorbinexp
+ vendorhtml1direxp
+ vendorhtml3direxp
+ vendorlibexp
+ vendorman1direxp
+ vendorman3direxp
+ vendorscriptexp
+
+ siteprefixexp
+ sitelib_stem
+ vendorlib_stem
+
+ installarchlib
+ installhtml1dir
+ installhtml3dir
+ installman1dir
+ installman3dir
+ installprefix
+ installprefixexp
+ installprivlib
+ installscript
+ installsitearch
+ installsitebin
+ installsitehtml1dir
+ installsitehtml3dir
+ installsitelib
+ installsiteman1dir
+ installsiteman3dir
+ installsitescript
+ installvendorarch
+ installvendorbin
+ installvendorhtml1dir
+ installvendorhtml3dir
+ installvendorlib
+ installvendorman1dir
+ installvendorman3dir
+ installvendorscript
+ )) {
+ push @need_relocation, $what if fetch_string({}, $what) =~ m!^\.\.\./!;
+ }
+}
+
+my %need_relocation;
+@need_relocation{@need_relocation} = @need_relocation;
+
+# This can have .../ anywhere:
+if (fetch_string({}, 'otherlibdirs') =~ m!\.\.\./!) {
+ $need_relocation{otherlibdirs} = 'otherlibdirs';
+}
+
+my $relocation_code = <<'EOT';
+
+sub relocate_inc {
+ my $libdir = shift;
+ return $libdir unless $libdir =~ s!^\.\.\./!!;
+ my $prefix = $^X;
+ if ($prefix =~ s!/[^/]*$!!) {
+ while ($libdir =~ m!^\.\./!) {
+ # Loop while $libdir starts "../" and $prefix still has a trailing
+ # directory
+ last unless $prefix =~ s!/([^/]+)$!!;
+ # but bail out if the directory we picked off the end of $prefix is .
+ # or ..
+ if ($1 eq '.' or $1 eq '..') {
+ # Undo! This should be rare, hence code it this way rather than a
+ # check each time before the s!!! above.
+ $prefix = "$prefix/$1";
+ last;
+ }
+ # Remove that leading ../ and loop again
+ substr ($libdir, 0, 3, '');
+ }
+ $libdir = "$prefix/$libdir";
+ }
+ $libdir;
+}
+EOT
+
+if (%need_relocation) {
+ my $relocations_in_common;
+ # otherlibdirs only features in the hash
+ foreach (keys %need_relocation) {
+ $relocations_in_common++ if $Common{$_};
+ }
+ if ($relocations_in_common) {
+ $config_txt .= $relocation_code;
+ } else {
+ $heavy_txt .= $relocation_code;
+ }
+}
+
+$heavy_txt .= join('', @non_v) . "\n";
# copy config summary format from the myconfig.SH script
-print CONFIG_HEAVY "our \$summary : unique = <<'!END!';\n";
+$heavy_txt .= "our \$summary = <<'!END!';\n";
open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!";
1 while defined($_ = <MYCONFIG>) && !/^Summary of/;
-do { print CONFIG_HEAVY $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/;
+do { $heavy_txt .= $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/;
close(MYCONFIG);
-# NB. as $summary is unique, we need to copy it in a lexical variable
-# before expanding it, because may have been made readonly if a perl
-# interpreter has been cloned.
-
-print CONFIG_HEAVY "\n!END!\n", <<'EOT';
+$heavy_txt .= "\n!END!\n" . <<'EOT';
my $summary_expanded;
sub myconfig {
$_ = <<'!END!';
EOT
-print CONFIG_HEAVY join("", @v_fast, sort @v_others);
+$heavy_txt .= join('', sort @v_others) . "!END!\n";
+
+# Only need the dynamic byteorder code in Config.pm if 'byteorder' is one of
+# the precached keys
+if ($Common{byteorder}) {
+ $config_txt .= $byteorder_code;
+} else {
+ $heavy_txt .= $byteorder_code;
+}
+
+if (@need_relocation) {
+$heavy_txt .= 'foreach my $what (qw(' . join (' ', @need_relocation) .
+ ")) {\n" . <<'EOT';
+ s/^($what=)(['"])(.*?)\2/$1 . $2 . relocate_inc($3) . $2/me;
+}
+EOT
+# Currently it only makes sense to do the ... relocation on Unix, so there's
+# no need to emulate the "which separator for this platform" logic in perl.c -
+# ':' will always be applicable
+if ($need_relocation{otherlibdirs}) {
+$heavy_txt .= << 'EOT';
+s{^(otherlibdirs=)(['"])(.*?)\2}
+ {$1 . $2 . join ':', map {relocate_inc($_)} split ':', $3 . $2}me;
+EOT
+}
+}
-print CONFIG_HEAVY <<'EOT';
-!END!
+$heavy_txt .= <<'EOT';
s/(byteorder=)(['"]).*?\2/$1$2$Config::byteorder$2/m;
-our $Config_SH : unique = $_;
-our $Config_SH_expanded : unique = "\n$_" . << 'EOVIRTUAL';
+my $config_sh_len = length $_;
+
+our $Config_SH_expanded = "\n$_" . << 'EOVIRTUAL';
EOT
foreach my $prefix (qw(ccflags ldflags)) {
my $value = fetch_string ({}, $prefix);
my $withlargefiles = fetch_string ({}, $prefix . "_uselargefiles");
- $value =~ s/\Q$withlargefiles\E\b//;
- print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n";
+ if (defined $withlargefiles) {
+ $value =~ s/\Q$withlargefiles\E\b//;
+ $heavy_txt .= "${prefix}_nolargefiles='$value'\n";
+ }
}
foreach my $prefix (qw(libs libswanted)) {
my $value = fetch_string ({}, $prefix);
+ my $withlf = fetch_string ({}, 'libswanted_uselargefiles');
+ next unless defined $withlf;
my @lflibswanted
= split(' ', fetch_string ({}, 'libswanted_uselargefiles'));
if (@lflibswanted) {
$value = join(' ', @libswanted);
}
}
- print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n";
+ $heavy_txt .= "${prefix}_nolargefiles='$value'\n";
}
-print CONFIG_HEAVY "EOVIRTUAL\n";
+$heavy_txt .= "EOVIRTUAL\n";
-print CONFIG_HEAVY $fetch_string;
+$heavy_txt .= $fetch_string;
-print CONFIG <<'ENDOFEND';
+$config_txt .= <<'ENDOFEND';
sub FETCH {
my($self, $key) = @_;
}
ENDOFEND
-print CONFIG_HEAVY <<'ENDOFEND';
+$heavy_txt .= <<'ENDOFEND';
+
my $prevpos = 0;
sub FIRSTKEY {
}
sub NEXTKEY {
+ENDOFEND
+if ($seen_quotes{'"'}) {
+$heavy_txt .= <<'ENDOFEND';
# Find out how the current key's quoted so we can skip to its end.
my $quote = substr($Config_SH_expanded,
index($Config_SH_expanded, "=", $prevpos)+1, 1);
my $pos = index($Config_SH_expanded, qq($quote\n), $prevpos) + 2;
+ENDOFEND
+} else {
+ # Just ' quotes, so it's much easier.
+$heavy_txt .= <<'ENDOFEND';
+ my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2;
+ENDOFEND
+}
+$heavy_txt .= <<'ENDOFEND';
my $len = index($Config_SH_expanded, "=", $pos) - $pos;
$prevpos = $pos;
$len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef;
sub EXISTS {
return 1 if exists($_[0]->{$_[1]});
- return(index($Config_SH_expanded, "\n$_[1]='") != -1 or
- index($Config_SH_expanded, "\n$_[1]=\"") != -1
+ return(index($Config_SH_expanded, "\n$_[1]='") != -1
+ENDOFEND
+if ($seen_quotes{'"'}) {
+$heavy_txt .= <<'ENDOFEND';
+ or index($Config_SH_expanded, "\n$_[1]=\"") != -1
+ENDOFEND
+}
+$heavy_txt .= <<'ENDOFEND';
);
}
sub config_sh {
- $Config_SH
+ substr $Config_SH_expanded, 1, $config_sh_len;
}
sub config_re {
ENDOFEND
if ($^O eq 'os2') {
- print CONFIG <<'ENDOFSET';
+ $config_txt .= <<'ENDOFSET';
my %preconfig;
if ($OS2::is_aout) {
my ($value, $v) = $Config_SH_expanded =~ m/^used_aout='(.*)'\s*$/m;
$dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/;
}
}
- print CONFIG <<ENDOFSET if $dll;
+ $config_txt .= <<ENDOFSET if $dll;
\$preconfig{dll_name} = '$dll';
ENDOFSET
} else {
- print CONFIG <<'ENDOFSET';
+ $config_txt .= <<'ENDOFSET';
sub TIEHASH {
bless $_[1], $_[0];
}
$value =~ s!\\!\\\\!g;
$value =~ s!'!\\'!g;
$value = "'$value'";
+ if ($key eq 'otherlibdirs') {
+ $value = "join (':', map {relocate_inc(\$_)} split (':', $value))";
+ } elsif ($need_relocation{$key}) {
+ $value = "relocate_inc($value)";
+ }
} else {
$value = "undef";
}
$Common{$key} = "$qkey => $value";
}
-my $fast_config = join '', map { " $_,\n" }
- sort (values %Common, 'byteorder => $byteorder');
-print CONFIG sprintf <<'ENDOFTIE', $fast_config;
+if ($Common{byteorder}) {
+ $Common{byteorder} = 'byteorder => $byteorder';
+}
+my $fast_config = join '', map { " $_,\n" } sort values %Common;
+
+# Sanity check needed to stop an infite loop if Config_heavy.pl fails to define
+# &launcher for some reason (eg it got truncated)
+$config_txt .= sprintf <<'ENDOFTIE', $fast_config;
sub DESTROY { }
sub AUTOLOAD {
require 'Config_heavy.pl';
- goto \&launcher;
+ goto \&launcher unless $Config::AUTOLOAD =~ /launcher$/;
die "&Config::AUTOLOAD failed on $Config::AUTOLOAD";
}
+# tie returns the object, so the value returned to require will be true.
tie %%Config, 'Config', {
%s};
-
-1;
ENDOFTIE
-open(CONFIG_POD, ">lib/Config.pod") or die "Can't open lib/Config.pod: $!";
+open(CONFIG_POD, ">$Config_POD") or die "Can't open $Config_POD: $!";
print CONFIG_POD <<'ENDOFTAIL';
=head1 NAME
specific to that particular port. See the port specific documentation
in such cases.
+=cut
+
ENDOFTAIL
if ($Opts{glossary}) {
print CONFIG_POD <<EOF if $text;
=back
+=cut
+
EOF
print CONFIG_POD <<EOF;
=head2 $c
=over 4
+=cut
+
EOF
$text = 1;
}
ENDOFTAIL
-close(CONFIG_HEAVY);
-close(CONFIG);
-close(GLOS);
+close(GLOS) if $Opts{glossary};
close(CONFIG_POD);
+print "written $Config_POD\n";
+
+my $orig_config_txt = "";
+my $orig_heavy_txt = "";
+{
+ local $/;
+ my $fh;
+ $orig_config_txt = <$fh> if open $fh, "<", $Config_PM;
+ $orig_heavy_txt = <$fh> if open $fh, "<", $Config_heavy;
+}
+
+if ($orig_config_txt ne $config_txt or $orig_heavy_txt ne $heavy_txt) {
+ open CONFIG, ">", $Config_PM or die "Can't open $Config_PM: $!\n";
+ open CONFIG_HEAVY, ">", $Config_heavy or die "Can't open $Config_heavy: $!\n";
+ print CONFIG $config_txt;
+ print CONFIG_HEAVY $heavy_txt;
+ close(CONFIG_HEAVY);
+ close(CONFIG);
+ print "updated $Config_PM\n";
+ print "updated $Config_heavy\n";
+}
+
# Now create Cross.pm if needed
if ($Opts{cross}) {
$cross =~ s/\*\*\*replace-marker\*\*\*/$Opts{cross}/g;
print CROSS $cross;
close CROSS;
+ print "written lib/Cross.pm\n";
+ unshift(@INC,"xlib/$Opts{cross}");
}
# Now do some simple tests on the Config.pm file we have created
unshift(@INC,'lib');
+unshift(@INC,'xlib/symbian') if $Opts{cross};
require $Config_PM;
+require $Config_heavy;
import Config;
die "$0: $Config_PM not valid"
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