diff options
Diffstat (limited to 'contrib/perl5/configpm')
| -rwxr-xr-x | contrib/perl5/configpm | 98 |
1 files changed, 71 insertions, 27 deletions
diff --git a/contrib/perl5/configpm b/contrib/perl5/configpm index c64af8a13b97..31b416b7a3c1 100755 --- a/contrib/perl5/configpm +++ b/contrib/perl5/configpm @@ -128,41 +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 $value; } @@ -191,7 +234,8 @@ sub EXISTS { index($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" } |