X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=configpm;h=31b416b7a3c11fcd5e005326ce895775f716bfb8;hb=bf0dfd2875ffb7aa5c714bb4d5e63ffe5433458f;hp=ac7f3aaec91d4b0bebd294ec90ed18c03ea25347;hpb=b233458bd1d5037ce4bbbb41fb513e1b68522a4d;p=p5sagit%2Fp5-mst-13.2.git diff --git a/configpm b/configpm index ac7f3aa..31b416b 100755 --- a/configpm +++ b/configpm @@ -1,15 +1,7 @@ #!./miniperl -w -# File::Spec? my $config_pm = $ARGV[0] || 'lib/Config.pm'; -my $src = '.'; -# File::Dirname? File::Spec? -if ($0 =~ m!^(?:(.+)/)configpm$!) { - $src = $1; - unshift @INC, "$1/lib"; -} -# File::Spec? -my $glossary = $ARGV[1] || "$src/Porting/Glossary"; +my $glossary = $ARGV[1] || 'Porting/Glossary'; @ARGV = "./config.sh"; # list names to put first (and hence lookup fastest) @@ -25,17 +17,33 @@ my $glossary = $ARGV[1] || "$src/Porting/Glossary"; 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. @@ -93,11 +101,7 @@ print CONFIG "\n", print CONFIG "my \$summary = <<'!END!';\n"; -# File::Spec? -my $myconfigdotSH = - $src eq "." ? "myconfig.SH" : "$src/myconfig.SH"; - -open(MYCONFIG,"<$myconfigdotSH") || die "open $myconfigdotSH failed: $!"; +open(MYCONFIG,") && !/^Summary of/; do { print CONFIG $_ } until !defined($_ = ) || /^\s*$/; close(MYCONFIG); @@ -124,41 +128,84 @@ sub FETCH { # Search for it in the big string my($value, $start, $marker, $quote_type); - $marker = "$_[1]="; + $quote_type = "'"; - # return undef unless (($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; + # 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); } - $value = substr($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 =~ s/\$/\\\$/g; + $value =~ s/\@/\\\@/g; + eval "\$value = \"$value\""; } #$value = sprintf($value) if $quote_type eq '"'; - $value = undef if $value eq 'undef'; # So we can say "if $Config{'foo'}". + # So we can say "if $Config{'foo'}". + $value = undef if $value eq 'undef'; $_[0]->{$_[1]} = $value; # cache it return $value; } @@ -187,7 +234,8 @@ sub EXISTS { index($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 "$_[1]=\""; + substr($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" }