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use ExtUtils::MakeMaker;
use ExtUtils::Constant 0.23 'WriteConstants';
use File::Spec;
use strict;
use warnings;
my $core = grep { $_ eq 'PERL_CORE=1' } @ARGV;
WriteMakefile(
NAME => "B",
VERSION_FROM => "B.pm",
realclean => {FILES=> 'const-c.inc const-xs.inc'},
);
my $headerpath;
if ($core) {
$headerpath = File::Spec->catdir(File::Spec->updir, File::Spec->updir);
} else {
require Config;
$headerpath = File::Spec->catdir($Config::Config{archlibexp}, "CORE");
}
my @names = ({ name => 'HEf_SVKEY', macro => 1, type => "IV" },
qw(SVTYPEMASK SVt_PVGV SVt_PVHV PAD_FAKELEX_ANON PAD_FAKELEX_MULTI));
# First element in each tuple is the file; second is a regex snippet
# giving the prefix to limit the names of symbols to define that come
# from that file. If none, all symbols will be defined whose values
# match the pattern below.
foreach my $tuple (['cop.h'],
['cv.h', 'CVf'],
['gv.h', 'GVf'],
['op.h'],
['op_reg_common.h','(?:(?:RXf_)?PMf_)'],
['regexp.h','RXf_'],
['sv.h', 'SV(?:[fps]|pad)_'],
) {
my $file = $tuple->[0];
my $pfx = $tuple->[1] || '';
my $path = File::Spec->catfile($headerpath, $file);
open my $fh, '<', $path or die "Cannot open $path: $!";
while (<$fh>) {
push @names, $1 if (/ \#define \s+ ( $pfx \w+ ) \s+
( [()|\dx]+ # Parens, '|', digits, 'x'
| \(? \d+ \s* << .*? # digits left shifted by anything
) \s* (?: $| \/ \* ) # ending at comment or $
/x);
}
close $fh;
}
# Currently only SVt_PVGV and SVt_PVHV aren't macros, but everything we name
# should exist, so ensure that the C compile breaks if anything does not.
WriteConstants(
PROXYSUBS => {push => 'EXPORT_OK'},
NAME => 'B',
NAMES => [map {ref $_ ? $_ : {name=>$_, macro=>1, type=>"UV"}} @names],
XS_SUBNAME => undef,
);
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