#!./miniperl -w
-my $config_pm = $ARGV[0] || 'lib/Config.pm';
+# following options are recognized:
+# --no-glossary - no glossary file inclusion, for compactness
+# --cross=PALTFORM - crosscompiling for PLATFORM
+my %opts = (
+ # %known_opts enumerates allowed opts as well as specifies default and initial values
+ my %known_opts = (
+ 'cross' => '',
+ 'glossary' => 1,
+ ),
+ # options itself
+ my %specified_opts = (
+ (map {/^--([\-_\w]+)=(.*)$/} @ARGV), # --opt=smth
+ (map {/^no-?(.*)$/i?($1=>0):($_=>1)} map {/^--([\-_\w]+)$/} @ARGV), # --opt --no-opt --noopt
+ ),
+);
+die "option '$_' is not recognized" for grep {!exists $known_opts{$_}} keys %specified_opts;
+@ARGV = grep {!/^--/} @ARGV;
+
+my $config_pm;
my $glossary = $ARGV[1] || 'Porting/Glossary';
+
+if ($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 = $ARGV[0] || 'lib/Config.pm';
+}
+
@ARGV = "./config.sh";
# list names to put first (and hence lookup fastest)
open CONFIG, ">$config_pm" or die "Can't open $config_pm: $!\n";
-$myver = $];
+$myver = sprintf "v%vd", $^V;
-print CONFIG <<"ENDOFBEG";
+print CONFIG <<'ENDOFBEG_NOQ', <<"ENDOFBEG";
package Config;
use Exporter ();
-\@ISA = (Exporter);
-\@EXPORT = qw(%Config);
-\@EXPORT_OK = qw(myconfig config_sh config_vars);
+@EXPORT = qw(%Config);
+@EXPORT_OK = qw(myconfig config_sh config_vars);
+
+# Define our own import method to avoid pulling in the full Exporter:
+sub import {
+ my $pkg = shift;
+ @_ = @EXPORT unless @_;
+ my @func = grep {$_ ne '%Config'} @_;
+ local $Exporter::ExportLevel = 1;
+ Exporter::import('Config', @func) if @func;
+ return if @func == @_;
+ my $callpkg = caller(0);
+ *{"$callpkg\::Config"} = \%Config;
+}
+
+ENDOFBEG_NOQ
+die "Perl lib version ($myver) doesn't match executable version (\$])"
+ unless \$^V;
-\$] == $myver
- or die "Perl lib version ($myver) doesn't match executable version (\$])";
+\$^V eq $myver
+ or die "Perl lib version ($myver) doesn't match executable version (" .
+ (sprintf "v%vd",\$^V) . ")";
# 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.
while (<>) {
next if m:^#!/bin/sh:;
- # Catch CONFIG=true and PATCHLEVEL=n line from Configure.
+ # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure.
s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/;
- unless ($in_v or m/^(\w+)='(.*\n)/){
+ my ($k,$v) = ($1,$2);
+ # grandfather PATCHLEVEL and SUBVERSION and CONFIG
+ if ($k) {
+ if ($k eq 'PERL_VERSION') {
+ push @v_others, "PATCHLEVEL='$v'\n";
+ }
+ elsif ($k eq 'PERL_SUBVERSION') {
+ push @v_others, "SUBVERSION='$v'\n";
+ }
+ elsif ($k eq 'PERL_CONFIG_SH') {
+ push @v_others, "CONFIG='$v'\n";
+ }
+ }
+ # We can delimit things in config.sh with either ' or ".
+ unless ($in_v or m/^(\w+)=(['"])(.*\n)/){
push(@non_v, "#$_"); # not a name='value' line
next;
}
+ $quote = $2;
if ($in_v) { $val .= $_; }
- else { ($name,$val) = ($1,$2); }
- $in_v = $val !~ /'\n/;
+ else { ($name,$val) = ($1,$3); }
+ $in_v = $val !~ /$quote\n/;
next if $in_v;
if ($extensions{$name}) { s,/,::,g }
- if (!$fast{$name}){ push(@v_others, "$name='$val"); next; }
- push(@v_fast,"$name='$val");
+ if (!$fast{$name}){ push(@v_others, "$name=$quote$val"); next; }
+ push(@v_fast,"$name=$quote$val");
}
foreach(@non_v){ print CONFIG $_ }
join("", @v_fast, sort @v_others),
"!END!\n\n";
-# copy config summary format from the myconfig script
+# copy config summary format from the myconfig.SH script
print CONFIG "my \$summary = <<'!END!';\n";
-open(MYCONFIG,"<myconfig") || die "open myconfig failed: $!";
+open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!";
1 while defined($_ = <MYCONFIG>) && !/^Summary of/;
do { print CONFIG $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/;
close(MYCONFIG);
return $_[0]->{$_[1]} if (exists $_[0]->{$_[1]});
# Search for it in the big string
- my($value, $start, $marker);
- $marker = "$_[1]='";
- # return undef unless (($value) = $config_sh =~ m/^$_[1]='(.*)'\s*$/m);
- $start = index($config_sh, "\n$marker");
- return undef if ( ($start == -1) && # in case it's first
- (substr($config_sh, 0, length($marker)) ne $marker) );
- if ($start == -1) { $start = length($marker) }
- else { $start += length($marker) + 1 }
- $value = substr($config_sh, $start,
- index($config_sh, qq('\n), $start) - $start);
-
- $value = undef if $value eq 'undef'; # So we can say "if $Config{'foo'}".
+ my($value, $start, $marker, $quote_type);
+
+ $quote_type = "'";
+ # Virtual entries.
+ if ($_[1] eq 'byteorder') {
+ # byteorder does exist on its own but we overlay a virtual
+ # dynamically recomputed value.
+ my $t = $Config{ivtype};
+ my $s = $Config{ivsize};
+ my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I';
+ if ($s == 4 || $s == 8) {
+ my $i = 0;
+ foreach my $c (reverse(2..$s)) { $i |= ord($c); $i <<= 8 }
+ $i |= ord(1);
+ $value = join('', unpack('a'x$s, pack($f, $i)));
+ } else {
+ $value = '?'x$s;
+ }
+ } elsif ($_[1] =~ /^((?:cc|ld)flags|libs(?:wanted)?)_nolargefiles/) {
+ # These are purely virtual, they do not exist, but need to
+ # be computed on demand for largefile-incapable extensions.
+ my $key = "${1}_uselargefiles";
+ $value = $Config{$1};
+ my $withlargefiles = $Config{$key};
+ if ($key =~ /^(?:cc|ld)flags_/) {
+ $value =~ s/\Q$withlargefiles\E\b//;
+ } elsif ($key =~ /^libs/) {
+ my @lflibswanted = split(' ', $Config{libswanted_uselargefiles});
+ if (@lflibswanted) {
+ my %lflibswanted;
+ @lflibswanted{@lflibswanted} = ();
+ if ($key =~ /^libs_/) {
+ my @libs = grep { /^-l(.+)/ &&
+ not exists $lflibswanted{$1} }
+ split(' ', $Config{libs});
+ $Config{libs} = join(' ', @libs);
+ } elsif ($key =~ /^libswanted_/) {
+ my @libswanted = grep { not exists $lflibswanted{$_} }
+ split(' ', $Config{libswanted});
+ $Config{libswanted} = join(' ', @libswanted);
+ }
+ }
+ }
+ } else {
+ $marker = "$_[1]=";
+ # return undef unless (($value) = $config_sh =~ m/^$_[1]='(.*)'\s*$/m);
+ # Check for the common case, ' delimeted
+ $start = index($config_sh, "\n$marker$quote_type");
+ # If that failed, check for " delimited
+ if ($start == -1) {
+ $quote_type = '"';
+ $start = index($config_sh, "\n$marker$quote_type");
+ }
+ return undef if ( ($start == -1) && # in case it's first
+ (substr($config_sh, 0, length($marker)) ne $marker) );
+ if ($start == -1) {
+ # It's the very first thing we found. Skip $start forward
+ # and figure out the quote mark after the =.
+ $start = length($marker) + 1;
+ $quote_type = substr($config_sh, $start - 1, 1);
+ }
+ else {
+ $start += length($marker) + 2;
+ }
+ $value = substr($config_sh, $start,
+ index($config_sh, "$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\"";
+ }
+ #$value = sprintf($value) if $quote_type eq '"';
+ # So we can say "if $Config{'foo'}".
+ $value = undef if $value eq 'undef';
$_[0]->{$_[1]} = $value; # cache it
return $value;
}
}
sub NEXTKEY {
- my $pos = index($config_sh, qq('\n), $prevpos) + 2;
+ # Find out how the current key's quoted so we can skip to its end.
+ my $quote = substr($config_sh, index($config_sh, "=", $prevpos)+1, 1);
+ my $pos = index($config_sh, qq($quote\n), $prevpos) + 2;
my $len = index($config_sh, "=", $pos) - $pos;
$prevpos = $pos;
$len > 0 ? substr($config_sh, $pos, $len) : undef;
# exists($_[0]->{$_[1]}) or $config_sh =~ m/^$_[1]=/m;
exists($_[0]->{$_[1]}) or
index($config_sh, "\n$_[1]='") != -1 or
- substr($config_sh, 0, length($_[1])+2) eq "$_[1]='";
+ substr($config_sh, 0, length($_[1])+2) eq "$_[1]='" or
+ index($config_sh, "\n$_[1]=\"") != -1 or
+ substr($config_sh, 0, length($_[1])+2) eq "$_[1]=\"" or
+ $_[1] =~ /^(?:(?:cc|ld)flags|libs(?:wanted)?)_nolargefiles$/;
}
sub STORE { die "\%Config::Config is read-only\n" }
sub config_re {
my $re = shift;
- my @matches = ($config_sh =~ /^$re=.*\n/mg);
+ my @matches = grep /^$re=/, split /^/, $config_sh;
@matches ? (print @matches) : print "$re: not found\n";
}
$preconfig{$_} = $v eq 'undef' ? undef : $v;
}
}
+$preconfig{d_fork} = undef unless $OS2::can_fork; # Some funny cases can't
sub TIEHASH { bless {%preconfig} }
ENDOFSET
+ # Extract the name of the DLL from the makefile to avoid duplication
+ my ($f) = grep -r, qw(GNUMakefile Makefile);
+ my $dll;
+ if (open my $fh, '<', $f) {
+ while (<$fh>) {
+ $dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/;
+ }
+ }
+ print CONFIG <<ENDOFSET if $dll;
+\$preconfig{dll_name} = '$dll';
+ENDOFSET
} else {
print CONFIG <<'ENDOFSET';
sub TIEHASH { bless {} }
specific library directory ($Config{installarchlib}) and it checks the
perl version number when loaded.
+The values stored in config.sh may be either single-quoted or
+double-quoted. Double-quoted strings are handy for those cases where you
+need to include escape sequences in the strings. To avoid runtime variable
+interpolation, any C<$> and C<@> characters are replaced by C<\$> and
+C<\@>, respectively. This isn't foolproof, of course, so don't embed C<\$>
+or C<\@> in double-quoted strings unless you're willing to deal with the
+consequences. (The slashes will end up escaped and the C<$> or C<@> will
+trigger variable interpolation)
+
=head1 GLOSSARY
Most C<Config> variables are determined by the C<Configure> script
ENDOFTAIL
-open(GLOS, "<$glossary") or die "Can't open $glossary: $!";
+if ($opts{glossary}) {
+ open(GLOS, "<$glossary") or die "Can't open $glossary: $!";
+}
%seen = ();
$text = 0;
$/ = '';
sub process {
- s/\A(\w*)\s+\(([\w.]+)\):\s*\n(\t?)/=item C<$1>\n\nFrom F<$2>:\n\n/m;
- my $c = substr $1, 0, 1;
- unless ($seen{$c}++) {
- print CONFIG <<EOF if $text;
+ if (s/\A(\w*)\s+\(([\w.]+)\):\s*\n(\t?)/=item C<$1>\n\nFrom F<$2>:\n\n/m) {
+ my $c = substr $1, 0, 1;
+ unless ($seen{$c}++) {
+ print CONFIG <<EOF if $text;
=back
EOF
- print CONFIG <<EOF;
+ print CONFIG <<EOF;
=head2 $c
-=over
+=over 4
EOF
- $text = 1;
+ $text = 1;
+ }
+ }
+ elsif (!$text || !/\A\t/) {
+ warn "Expected a Configure variable header",
+ ($text ? " or another paragraph of description" : () );
}
s/n't/n\00t/g; # leave can't, won't etc untouched
s/^\t\s+(.*)/\n\t$1\n/gm; # Indented lines ===> paragraphs
(?! e \. g \. ) # Not e.g.
(?! \. \. \. ) # Not ...
(?! \d ) # Not 5.004
- ( [\w./]* [./] [\w./]* ) # Require . or / inside
- (?<! \. (?= \s ) ) # Do not include trailing dot
+ (?! read/ ) # Not read/write
+ (?! etc\. ) # Not etc.
+ (?! I/O ) # Not I/O
+ (
+ \$ ? # Allow leading $
+ [\w./]* [./] [\w./]* # Require . or / inside
+ )
+ (?<! \. (?= [\s)] ) ) # Do not include trailing dot
(?! [\w/] ) # Include all of it
}
(F<$1>)xg; # /usr/local
s/n[\0]t/n't/g; # undo can't, won't damage
}
-<GLOS>; # Skip the preamble
-while (<GLOS>) {
- process;
- print CONFIG;
+if ($opts{glossary}) {
+ <GLOS>; # Skip the preamble
+ while (<GLOS>) {
+ process;
+ print CONFIG;
+ }
}
print CONFIG <<'ENDOFTAIL';
close(CONFIG);
close(GLOS);
+# Now create Cross.pm if needed
+if ($opts{cross}) {
+ open CROSS, ">lib/Cross.pm" or die "Can not open >lib/Cross.pm: $!";
+ my $cross = <<'EOS';
+# typical invocation:
+# perl -MCross Makefile.PL
+# perl -MCross=wince -V:cc
+package Cross;
+
+sub import {
+ my ($package,$platform) = @_;
+ unless (defined $platform) {
+ # if $platform is not specified, then use last one when
+ # 'configpm; was invoked with --cross option
+ $platform = '***replace-marker***';
+ }
+ @INC = map {/\blib\b/?(do{local $_=$_;s/\blib\b/xlib\/$platform/;$_},$_):($_)} @INC;
+}
+
+1;
+EOS
+ $cross =~ s/\*\*\*replace-marker\*\*\*/$opts{cross}/g;
+ print CROSS $cross;
+ close CROSS;
+}
+
+
# Now do some simple tests on the Config.pm file we have created
unshift(@INC,'lib');
require $config_pm;
import Config;
die "$0: $config_pm not valid"
- unless $Config{'CONFIG'} eq 'true';
+ unless $Config{'PERL_CONFIG_SH'} eq 'true';
die "$0: error processing $config_pm"
if defined($Config{'an impossible name'})
- or $Config{'CONFIG'} ne 'true' # test cache
+ or $Config{'PERL_CONFIG_SH'} ne 'true' # test cache
;
die "$0: error processing $config_pm"
https://perl5.git.perl.org / perl5.git / blobdiff