X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/a48f8c779b973cde21f91eb6230f57994f5c9ad9..bb275e7208fde6cd3835f1057d07fa69e22b40a4:/configpm diff --git a/configpm b/configpm index 7816c8d..874e3f3 100755 --- a/configpm +++ b/configpm @@ -1,13 +1,18 @@ #!./miniperl -w +use strict; +use vars qw(%Config $Config_SH_expanded); -# commonly used names to put first (and hence lookup fastest) -my %Common = map {($_,$_)} - qw(archname osname osvers prefix libs libpth - dynamic_ext static_ext dlsrc so - cc ccflags cppflags - privlibexp archlibexp installprivlib installarchlib - sharpbang startsh shsharp - ); +my $how_many_common = 22; + +# commonly used names to precache (and hence lookup fastest) +my %Common; + +while ($how_many_common--) { + $_ = ; + chomp; + /^(\S+):\s*(\d+)$/ or die "Malformed line '$_'"; + $Common{$1} = $1; +} # names of things which may need to have slashes changed to double-colons my %Extensions = map {($_,$_)} @@ -15,9 +20,10 @@ my %Extensions = map {($_,$_)} # allowed opts as well as specifies default and initial values my %Allowed_Opts = ( - 'cross' => '', # --cross=PALTFORM - crosscompiling for PLATFORM - 'glossary' => 1, # --no-glossary - no glossary file inclusion, + '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 { @@ -42,7 +48,7 @@ sub opts { my %Opts = opts(); -my $Config_PM; +my ($Config_PM, $Config_heavy); my $Glossary = $ARGV[1] || 'Porting/Glossary'; if ($Opts{cross}) { @@ -54,30 +60,62 @@ if ($Opts{cross}) { else { $Config_PM = $ARGV[0] || 'lib/Config.pm'; } - +if ($Opts{heavy}) { + $Config_heavy = $Opts{heavy}; +} +else { + ($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 $Config_PM; +} open CONFIG, ">$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_HEAVY <<'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. + +package Config; +use strict; +# use warnings; Pulls in Carp +# use vars pulls in Carp +ENDOFBEG -my $myver = sprintf "v%vd", $^V; +my $myver = sprintf "%vd", $^V; printf CONFIG <<'ENDOFBEG', ($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. package Config; -@EXPORT = qw(%%Config); -@EXPORT_OK = qw(myconfig config_sh config_vars config_re); +use strict; +# use warnings; Pulls in Carp +# use vars pulls in Carp +@Config::EXPORT = qw(%%Config); +@Config::EXPORT_OK = qw(myconfig config_sh config_vars config_re); -my %%Export_Cache = map {($_ => 1)} (@EXPORT, @EXPORT_OK); +# Need to stub all the functions to make code such as print Config::config_sh +# keep working + +sub myconfig; +sub config_sh; +sub config_vars; +sub config_re; + +my %%Export_Cache = map {($_ => 1)} (@Config::EXPORT, @Config::EXPORT_OK); + +our %%Config; # Define our own import method to avoid pulling in the full Exporter: sub import { my $pkg = shift; - @_ = @EXPORT unless @_; + @_ = @Config::EXPORT unless @_; my @funcs = grep $_ ne '%%Config', @_; my $export_Config = @funcs < @_ ? 1 : 0; + no strict 'refs'; my $callpkg = caller(0); foreach my $func (@funcs) { die sprintf qq{"%%s" is not exported by the %%s module\n}, @@ -100,45 +138,112 @@ ENDOFBEG my @non_v = (); -my @v_fast = (); -my %v_fast = (); my @v_others = (); my $in_v = 0; my %Data = (); + +my %seen_quotes; +{ + my ($name, $val); + open(CONFIG_SH, 'config.sh') || die "Can't open config.sh: $!"; + while () { + next if m:^#!/bin/sh:; + + # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure. + s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/ or m/^(\w+)='(.*)'$/; + 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; + } + my $quote = $2; + if ($in_v) { + $val .= $_; + } + else { + ($name,$val) = ($1,$3); + } + $in_v = $val !~ /$quote\n/; + next if $in_v; + + s,/,::,g if $Extensions{$name}; + + $val =~ s/$quote\n?\z//; + + my $line = "$name=$quote$val$quote\n"; + 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 $fetch_string = <<'EOT'; -# Search for it in the big string +# Search for it in the big string sub fetch_string { my($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, ' delimeted - my $start = index($Config_SH, "\n$marker$quote_type"); + # 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, "\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; + $start = index($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; - my $value = substr($Config_SH, $start, - index($Config_SH, "$quote_type\n", $start) - $start); + $start += length($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 @@ -149,7 +254,9 @@ sub fetch_string { $value =~ s/\@/\\\@/g; eval "\$value = \"$value\""; } - +EOT +} +$fetch_string .= <<'EOT'; # So we can say "if $Config{'foo'}". $value = undef if $value eq 'undef'; $self->{$key} = $value; # cache it @@ -159,159 +266,246 @@ EOT eval $fetch_string; die if $@; -open(CONFIG_SH, 'config.sh') || die "Can't open config.sh: $!"; -while () { - next if m:^#!/bin/sh:; +# Calculation for the keys for byteorder +# This is somewhat grim, but I need to run fetch_string here. +our $Config_SH_expanded = join "\n", '', @v_others; - # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure. - s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/ or m/^(\w+)='(.*)'$/; - my($k, $v) = ($1, $2); +my $t = fetch_string ({}, 'ivtype'); +my $s = fetch_string ({}, 'ivsize'); - # grandfather PATCHLEVEL and SUBVERSION and CONFIG - if ($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"; - } - } +# byteorder does exist on its own but we overlay a virtual +# dynamically recomputed value. - # 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,$3); - } - $in_v = $val !~ /$quote\n/; - next if $in_v; +# However, ivtype and ivsize will not vary for sane fat binaries - s,/,::,g if $Extensions{$name}; +my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I'; - $val =~ s/$quote\n?\z//; +my $byteorder_code; +if ($s == 4 || $s == 8) { + my $list = join ',', reverse(2..$s); + my $format = 'a'x$s; + $byteorder_code = <<"EOT"; - my $line = "$name=$quote$val$quote\n"; - if (!$Common{$name}){ - push(@v_others, $line); +my \$i = 0; +foreach my \$c ($list) { \$i |= ord(\$c); \$i <<= 8 } +\$i |= ord(1); +our \$byteorder = join('', unpack('$format', pack('$f', \$i))); +EOT +} else { + $byteorder_code = "our \$byteorder = '?'x$s;\n"; +} + +my @need_relocation; + +if (fetch_string({},'userelocatableinc')) { + foreach my $what (qw(archlibexp + privlibexp + sitearchexp + sitelibexp + sitelib_stem + vendorarchexp + vendorlibexp + vendorlib_stem)) { + push @need_relocation, $what if fetch_string({}, $what) =~ m!^\.\.\./!; } - else { - push(@v_fast, $line); - $v_fast{$name} = "'$name' => $quote$val$quote"; +} + +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; } -close CONFIG_SH; +EOT -print CONFIG @non_v, "\n"; +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) { + print CONFIG $relocation_code; + } else { + print CONFIG_HEAVY $relocation_code; + } +} + +print CONFIG_HEAVY @non_v, "\n"; # copy config summary format from the myconfig.SH script -print CONFIG "my \$summary = <<'!END!';\n"; +print CONFIG_HEAVY "our \$summary = <<'!END!';\n"; open(MYCONFIG,") && !/^Summary of/; -do { print CONFIG $_ } until !defined($_ = ) || /^\s*$/; +do { print CONFIG_HEAVY $_ } until !defined($_ = ) || /^\s*$/; close(MYCONFIG); -print CONFIG "\n!END!\n", <<'EOT'; -my $summary_expanded = 0; +print CONFIG_HEAVY "\n!END!\n", <<'EOT'; +my $summary_expanded; sub myconfig { - return $summary if $summary_expanded; - $summary =~ s{\$(\w+)} - { my $c = $Config{$1}; defined($c) ? $c : 'undef' }ge; - $summary_expanded = 1; - $summary; + return $summary_expanded if $summary_expanded; + ($summary_expanded = $summary) =~ s{\$(\w+)} + { my $c = $Config::Config{$1}; defined($c) ? $c : 'undef' }ge; + $summary_expanded; } -our $Config_SH : unique = <<'!END!'; +local *_ = \my $a; +$_ = <<'!END!'; EOT -print CONFIG join("", @v_fast, sort @v_others); +print CONFIG_HEAVY join('', sort @v_others), "!END!\n"; -print CONFIG "!END!\n", $fetch_string; +# Only need the dynamic byteorder code in Config.pm if 'byteorder' is one of +# the precached keys +if ($Common{byteorder}) { + print CONFIG $byteorder_code; +} else { + print CONFIG_HEAVY $byteorder_code; +} -print CONFIG <<'ENDOFEND'; +if (@need_relocation) { +print CONFIG_HEAVY '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}) { +print CONFIG_HEAVY << 'EOT'; +s{^(otherlibdirs=)(['"])(.*?)\2} + {$1 . $2 . join ':', map {relocate_inc($_)} split ':', $3 . $2}me; +EOT +} +} -sub fetch_virtual { - my($self, $key) = @_; +print CONFIG_HEAVY <<'EOT'; +s/(byteorder=)(['"]).*?\2/$1$2$Config::byteorder$2/m; - my $value; - - if ($key =~ /^((?: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 $new_key = "${1}_uselargefiles"; - $value = $Config{$1}; - my $withlargefiles = $Config{$new_key}; - if ($new_key =~ /^(?:cc|ld)flags_/) { - $value =~ s/\Q$withlargefiles\E\b//; - } elsif ($new_key =~ /^libs/) { - my @lflibswanted = split(' ', $Config{libswanted_uselargefiles}); - if (@lflibswanted) { - my %lflibswanted; - @lflibswanted{@lflibswanted} = (); - if ($new_key =~ /^libs_/) { - my @libs = grep { /^-l(.+)/ && - not exists $lflibswanted{$1} } - split(' ', $Config{libs}); - $Config{libs} = join(' ', @libs); - } elsif ($new_key =~ /^libswanted_/) { - my @libswanted = grep { not exists $lflibswanted{$_} } - split(' ', $Config{libswanted}); - $Config{libswanted} = join(' ', @libswanted); - } - } - } +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"); + if (defined $withlargefiles) { + $value =~ s/\Q$withlargefiles\E\b//; + print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n"; } +} - $self->{$key} = $value; +foreach my $prefix (qw(libs libswanted)) { + my $value = fetch_string ({}, $prefix); + my $withlf = fetch_string ({}, 'libswanted_uselargefiles'); + next unless defined $withlf; + my @lflibswanted + = split(' ', fetch_string ({}, 'libswanted_uselargefiles')); + if (@lflibswanted) { + my %lflibswanted; + @lflibswanted{@lflibswanted} = (); + if ($prefix eq 'libs') { + my @libs = grep { /^-l(.+)/ && + not exists $lflibswanted{$1} } + split(' ', fetch_string ({}, 'libs')); + $value = join(' ', @libs); + } else { + my @libswanted = grep { not exists $lflibswanted{$_} } + split(' ', fetch_string ({}, 'libswanted')); + $value = join(' ', @libswanted); + } + } + print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n"; } -sub FETCH { +print CONFIG_HEAVY "EOVIRTUAL\n"; + +print CONFIG_HEAVY $fetch_string; + +print CONFIG <<'ENDOFEND'; + +sub FETCH { my($self, $key) = @_; # check for cached value (which may be undef so we use exists not defined) return $self->{$key} if exists $self->{$key}; - $self->fetch_string($key); - return $self->{$key} if exists $self->{$key}; - $self->fetch_virtual($key); - - # Might not exist, in which undef is correct. - return $self->{$key}; + return $self->fetch_string($key); } - +ENDOFEND + +print CONFIG_HEAVY <<'ENDOFEND'; + my $prevpos = 0; sub FIRSTKEY { $prevpos = 0; - substr($Config_SH, 0, index($Config_SH, '=') ); + substr($Config_SH_expanded, 1, index($Config_SH_expanded, '=') - 1 ); } sub NEXTKEY { +ENDOFEND +if ($seen_quotes{'"'}) { +print CONFIG_HEAVY <<'ENDOFEND'; # 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; + 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. +print CONFIG_HEAVY <<'ENDOFEND'; + my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2; +ENDOFEND +} +print CONFIG_HEAVY <<'ENDOFEND'; + my $len = index($Config_SH_expanded, "=", $pos) - $pos; $prevpos = $pos; - $len > 0 ? substr($Config_SH, $pos, $len) : undef; + $len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef; } -sub EXISTS { +sub EXISTS { return 1 if exists($_[0]->{$_[1]}); - return(index($Config_SH, "\n$_[1]='") != -1 or - substr($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 - $_[1] =~ /^(?:(?:cc|ld)flags|libs(?:wanted)?)_nolargefiles$/ + return(index($Config_SH_expanded, "\n$_[1]='") != -1 +ENDOFEND +if ($seen_quotes{'"'}) { +print CONFIG_HEAVY <<'ENDOFEND'; + or index($Config_SH_expanded, "\n$_[1]=\"") != -1 +ENDOFEND +} +print CONFIG_HEAVY <<'ENDOFEND'; ); } @@ -321,36 +515,54 @@ sub STORE { die "\%Config::Config is read-only\n" } sub config_sh { - $Config_SH + substr $Config_SH_expanded, 1, $config_sh_len; } sub config_re { my $re = shift; - return map { chomp; $_ } grep /^$re=/, split /^/, $config_sh; + return map { chomp; $_ } grep eval{ /^(?:$re)=/ }, split /^/, + $Config_SH_expanded; } sub config_vars { + # implements -V:cfgvar option (see perlrun -V:) foreach (@_) { - if (/\W/) { - my @matches = config_re($_); - print map "$_\n", @matches ? @matches : "$_: not found"; + # find optional leading, trailing colons; and query-spec + my ($notag,$qry,$lncont) = m/^(:)?(.*?)(:)?$/; # flags fore and aft, + # map colon-flags to print decorations + my $prfx = $notag ? '': "$qry="; # tag-prefix for print + my $lnend = $lncont ? ' ' : ";\n"; # line ending for print + + # all config-vars are by definition \w only, any \W means regex + if ($qry =~ /\W/) { + my @matches = config_re($qry); + print map "$_$lnend", @matches ? @matches : "$qry: not found" if !$notag; + print map { s/\w+=//; "$_$lnend" } @matches ? @matches : "$qry: not found" if $notag; } else { - my $v = (exists $Config{$_}) ? $Config{$_} : 'UNKNOWN'; + my $v = (exists $Config::Config{$qry}) ? $Config::Config{$qry} + : 'UNKNOWN'; $v = 'undef' unless defined $v; - print "$_='$v';\n"; + print "${prfx}'${v}'$lnend"; } } } +# Called by the real AUTOLOAD +sub launcher { + undef &AUTOLOAD; + goto \&$Config::AUTOLOAD; +} + +1; ENDOFEND if ($^O eq 'os2') { print CONFIG <<'ENDOFSET'; my %preconfig; if ($OS2::is_aout) { - my ($value, $v) = $Config_SH =~ m/^used_aout='(.*)'\s*$/m; + my ($value, $v) = $Config_SH_expanded =~ m/^used_aout='(.*)'\s*$/m; for (split ' ', $value) { - ($v) = $Config_SH =~ m/^aout_$_='(.*)'\s*$/m; + ($v) = $Config_SH_expanded =~ m/^aout_$_='(.*)'\s*$/m; $preconfig{$_} = $v eq 'undef' ? undef : $v; } } @@ -376,50 +588,46 @@ sub TIEHASH { ENDOFSET } - -# Calculation for the keys for byteorder -# This is somewhat grim, but I need to run fetch_string here. -our $Config_SH = join "\n", @v_fast, @v_others; - -my $t = fetch_string ({}, 'ivtype'); -my $s = fetch_string ({}, 'ivsize'); - -# byteorder does exist on its own but we overlay a virtual -# dynamically recomputed value. - -# However, ivtype and ivsize will not vary for sane fat binaries - -my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I'; - -my $byteorder_code; -if ($s == 4 || $s == 8) { - 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); -my \$value = join('', unpack('$format', pack('$f', \$i))); -EOT -} else { - $byteorder_code = "\$value = '?'x$s;\n"; +foreach my $key (keys %Common) { + my $value = fetch_string ({}, $key); + # Is it safe on the LHS of => ? + my $qkey = $key =~ /^[A-Za-z_][A-Za-z0-9_]*$/ ? $key : "'$key'"; + if (defined $value) { + # Quote things for a '' string + $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" } - values (%v_fast), 'byteorder => $value' ; +if ($Common{byteorder}) { + $Common{byteorder} = 'byteorder => $byteorder'; +} +my $fast_config = join '', map { " $_,\n" } sort values %Common; -print CONFIG sprintf <<'ENDOFTIE', $byteorder_code, $fast_config; +# Sanity check needed to stop an infite loop if Config_heavy.pl fails to define +# &launcher for some reason (eg it got truncated) +print CONFIG sprintf <<'ENDOFTIE', $fast_config; -# avoid Config..Exporter..UNIVERSAL search for DESTROY then AUTOLOAD sub DESTROY { } -%s +sub AUTOLOAD { + require 'Config_heavy.pl'; + goto \&launcher unless $Config::AUTOLOAD =~ /launcher$/; + die "&Config::AUTOLOAD failed on $Config::AUTOLOAD"; +} +# tie returns the object, so the value returned to require will be true. tie %%Config, 'Config', { -%s -}; - -1; +%s}; ENDOFTIE @@ -432,8 +640,8 @@ Config - access Perl configuration information =head1 SYNOPSIS use Config; - if ($Config{'cc'} =~ /gcc/) { - print "built by gcc\n"; + if ($Config{usethreads}) { + print "has thread support\n" } use Config qw(myconfig config_sh config_vars config_re); @@ -545,8 +753,8 @@ ENDOFTAIL if ($Opts{glossary}) { open(GLOS, "<$Glossary") or die "Can't open $Glossary: $!"; } -%seen = (); -$text = 0; +my %seen = (); +my $text = 0; $/ = ''; sub process { @@ -621,6 +829,7 @@ outside of it. ENDOFTAIL +close(CONFIG_HEAVY); close(CONFIG); close(GLOS); close(CONFIG_POD); @@ -654,7 +863,9 @@ EOS # 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" @@ -672,3 +883,106 @@ die "$0: error processing $Config_PM" exit 0; +# Popularity of various entries in %Config, based on a large build and test +# run of code in the Fotango build system: +__DATA__ +path_sep: 8490 +d_readlink: 7101 +d_symlink: 7101 +archlibexp: 4318 +sitearchexp: 4305 +sitelibexp: 4305 +privlibexp: 4163 +ldlibpthname: 4041 +libpth: 2134 +archname: 1591 +exe_ext: 1256 +scriptdir: 1155 +version: 1116 +useithreads: 1002 +osvers: 982 +osname: 851 +inc_version_list: 783 +dont_use_nlink: 779 +intsize: 759 +usevendorprefix: 642 +dlsrc: 624 +cc: 541 +lib_ext: 520 +so: 512 +ld: 501 +ccdlflags: 500 +ldflags: 495 +obj_ext: 495 +cccdlflags: 493 +lddlflags: 493 +ar: 492 +dlext: 492 +libc: 492 +ranlib: 492 +full_ar: 491 +vendorarchexp: 491 +vendorlibexp: 491 +installman1dir: 489 +installman3dir: 489 +installsitebin: 489 +installsiteman1dir: 489 +installsiteman3dir: 489 +installvendorman1dir: 489 +installvendorman3dir: 489 +d_flexfnam: 474 +eunicefix: 360 +d_link: 347 +installsitearch: 344 +installscript: 341 +installprivlib: 337 +binexp: 336 +installarchlib: 336 +installprefixexp: 336 +installsitelib: 336 +installstyle: 336 +installvendorarch: 336 +installvendorbin: 336 +installvendorlib: 336 +man1ext: 336 +man3ext: 336 +sh: 336 +siteprefixexp: 336 +installbin: 335 +usedl: 332 +ccflags: 285 +startperl: 232 +optimize: 231 +usemymalloc: 229 +cpprun: 228 +sharpbang: 228 +perllibs: 225 +usesfio: 224 +usethreads: 220 +perlpath: 218 +extensions: 217 +usesocks: 208 +shellflags: 198 +make: 191 +d_pwage: 189 +d_pwchange: 189 +d_pwclass: 189 +d_pwcomment: 189 +d_pwexpire: 189 +d_pwgecos: 189 +d_pwpasswd: 189 +d_pwquota: 189 +gccversion: 189 +libs: 186 +useshrplib: 186 +cppflags: 185 +ptrsize: 185 +shrpenv: 185 +static_ext: 185 +use5005threads: 185 +uselargefiles: 185 +alignbytes: 184 +byteorder: 184 +ccversion: 184 +config_args: 184 +cppminus: 184