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package ExtUtils::CBuilder::Platform::Windows;
use strict;
use warnings;
use File::Basename;
use File::Spec;
use ExtUtils::CBuilder::Base;
use IO::File;
our $VERSION = '0.280230'; # VERSION
our @ISA = qw(ExtUtils::CBuilder::Base);
=begin comment
The compiler-specific packages implement functions for generating properly
formatted commandlines for the compiler being used. Each package
defines two primary functions 'format_linker_cmd()' &
'format_compiler_cmd()' that accepts a list of named arguments (a
hash) and returns a list of formatted options suitable for invoking the
compiler. By default, if the compiler supports scripting of its
operation then a script file is built containing the options while
those options are removed from the commandline, and a reference to the
script is pushed onto the commandline in their place. Scripting the
compiler in this way helps to avoid the problems associated with long
commandlines under some shells.
=end comment
=cut
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);
my $cf = $self->{config};
# Inherit from an appropriate compiler driver class
my $driver = "ExtUtils::CBuilder::Platform::Windows::" . $self->_compiler_type;
eval "require $driver" or die "Could not load compiler driver: $@";
unshift @ISA, $driver;
return $self;
}
sub _compiler_type {
my $self = shift;
my $cc = $self->{config}{cc};
return ( $cc =~ /cl(\.exe)?$/ ? 'MSVC'
: $cc =~ /bcc32(\.exe)?$/ ? 'BCC'
: 'GCC');
}
sub split_like_shell {
# Since Windows will pass the whole command string (not an argument
# array) to the target program and make the program parse it itself,
# we don't actually need to do any processing here.
(my $self, local $_) = @_;
return @$_ if defined() && UNIVERSAL::isa($_, 'ARRAY');
return unless defined() && length();
return ($_);
}
sub do_system {
# See above
my $self = shift;
my $cmd = join(" ",
grep length,
map {$a=$_;$a=~s/\t/ /g;$a=~s/^\s+|\s+$//;$a}
grep defined, @_);
return $self->SUPER::do_system($cmd);
}
sub arg_defines {
my ($self, %args) = @_;
s/"/\\"/g foreach values %args;
return map qq{"-D$_=$args{$_}"}, sort keys %args;
}
sub compile {
my ($self, %args) = @_;
my $cf = $self->{config};
die "Missing 'source' argument to compile()" unless defined $args{source};
$args{include_dirs} = [ $args{include_dirs} ]
if exists($args{include_dirs}) && ref($args{include_dirs}) ne "ARRAY";
my ($basename, $srcdir) =
( File::Basename::fileparse($args{source}, '\.[^.]+$') )[0,1];
$srcdir ||= File::Spec->curdir();
my @defines = $self->arg_defines( %{ $args{defines} || {} } );
my %spec = (
srcdir => $srcdir,
builddir => $srcdir,
basename => $basename,
source => $args{source},
output => $args{object_file} || File::Spec->catfile($srcdir, $basename) . $cf->{obj_ext},
cc => $cf->{cc},
cflags => [
$self->split_like_shell($cf->{ccflags}),
$self->split_like_shell($cf->{cccdlflags}),
$self->split_like_shell($args{extra_compiler_flags}),
],
optimize => [ $self->split_like_shell($cf->{optimize}) ],
defines => \@defines,
includes => [ @{$args{include_dirs} || []} ],
perlinc => [
$self->perl_inc(),
$self->split_like_shell($cf->{incpath}),
],
use_scripts => 1, # XXX provide user option to change this???
);
$self->normalize_filespecs(
\$spec{source},
\$spec{output},
$spec{includes},
$spec{perlinc},
);
my @cmds = $self->format_compiler_cmd(%spec);
while ( my $cmd = shift @cmds ) {
$self->do_system( @$cmd )
or die "error building $cf->{dlext} file from '$args{source}'";
}
(my $out = $spec{output}) =~ tr/'"//d;
return $out;
}
sub need_prelink { 1 }
sub link {
my ($self, %args) = @_;
my $cf = $self->{config};
my @objects = ( ref $args{objects} eq 'ARRAY' ? @{$args{objects}} : $args{objects} );
my $to = join '', (File::Spec->splitpath($objects[0]))[0,1];
$to ||= File::Spec->curdir();
(my $file_base = $args{module_name}) =~ s/.*:://;
my $output = $args{lib_file} ||
File::Spec->catfile($to, "$file_base.$cf->{dlext}");
# if running in perl source tree, look for libs there, not installed
my $lddlflags = $cf->{lddlflags};
my $perl_src = $self->perl_src();
$lddlflags =~ s{\Q$cf->{archlibexp}\E[\\/]CORE}{$perl_src/lib/CORE} if $perl_src;
my %spec = (
srcdir => $to,
builddir => $to,
startup => [ ],
objects => \@objects,
libs => [ ],
output => $output,
ld => $cf->{ld},
libperl => $cf->{libperl},
perllibs => [ $self->split_like_shell($cf->{perllibs}) ],
libpath => [ $self->split_like_shell($cf->{libpth}) ],
lddlflags => [ $self->split_like_shell($lddlflags) ],
other_ldflags => [ $self->split_like_shell($args{extra_linker_flags} || '') ],
use_scripts => 1, # XXX provide user option to change this???
);
unless ( $spec{basename} ) {
($spec{basename} = $args{module_name}) =~ s/.*:://;
}
$spec{srcdir} = File::Spec->canonpath( $spec{srcdir} );
$spec{builddir} = File::Spec->canonpath( $spec{builddir} );
$spec{output} ||= File::Spec->catfile( $spec{builddir},
$spec{basename} . '.'.$cf->{dlext} );
$spec{manifest} ||= $spec{output} . '.manifest';
$spec{implib} ||= File::Spec->catfile( $spec{builddir},
$spec{basename} . $cf->{lib_ext} );
$spec{explib} ||= File::Spec->catfile( $spec{builddir},
$spec{basename} . '.exp' );
if ($cf->{cc} eq 'cl') {
$spec{dbg_file} ||= File::Spec->catfile( $spec{builddir},
$spec{basename} . '.pdb' );
}
elsif ($cf->{cc} eq 'bcc32') {
$spec{dbg_file} ||= File::Spec->catfile( $spec{builddir},
$spec{basename} . '.tds' );
}
$spec{def_file} ||= File::Spec->catfile( $spec{srcdir} ,
$spec{basename} . '.def' );
$spec{base_file} ||= File::Spec->catfile( $spec{srcdir} ,
$spec{basename} . '.base' );
$self->add_to_cleanup(
grep defined,
@{[ @spec{qw(manifest implib explib dbg_file def_file base_file map_file)} ]}
);
foreach my $opt ( qw(output manifest implib explib dbg_file def_file map_file base_file) ) {
$self->normalize_filespecs( \$spec{$opt} );
}
foreach my $opt ( qw(libpath startup objects) ) {
$self->normalize_filespecs( $spec{$opt} );
}
(my $def_base = $spec{def_file}) =~ tr/'"//d;
$def_base =~ s/\.def$//;
$self->prelink( %args,
dl_name => $args{module_name},
dl_file => $def_base,
dl_base => $spec{basename} );
my @cmds = $self->format_linker_cmd(%spec);
while ( my $cmd = shift @cmds ) {
$self->do_system( @$cmd );
}
$spec{output} =~ tr/'"//d;
return wantarray
? grep defined, @spec{qw[output manifest implib explib dbg_file def_file map_file base_file]}
: $spec{output};
}
# canonize & quote paths
sub normalize_filespecs {
my ($self, @specs) = @_;
foreach my $spec ( grep defined, @specs ) {
if ( ref $spec eq 'ARRAY') {
$self->normalize_filespecs( map {\$_} grep defined, @$spec )
} elsif ( ref $spec eq 'SCALAR' ) {
$$spec =~ tr/"//d if $$spec;
next unless $$spec;
$$spec = '"' . File::Spec->canonpath($$spec) . '"';
} elsif ( ref $spec eq '' ) {
$spec = '"' . File::Spec->canonpath($spec) . '"';
} else {
die "Don't know how to normalize " . (ref $spec || $spec) . "\n";
}
}
}
# directory of perl's include files
sub perl_inc {
my $self = shift;
my $perl_src = $self->perl_src();
if ($perl_src) {
File::Spec->catdir($perl_src, "lib", "CORE");
} else {
File::Spec->catdir($self->{config}{archlibexp},"CORE");
}
}
1;
__END__
=head1 NAME
ExtUtils::CBuilder::Platform::Windows - Builder class for Windows platforms
=head1 DESCRIPTION
This module implements the Windows-specific parts of ExtUtils::CBuilder.
Most of the Windows-specific stuff has to do with compiling and
linking C code. Currently we support the 3 compilers perl itself
supports: MSVC, BCC, and GCC.
This module inherits from C<ExtUtils::CBuilder::Base>, so any functionality
not implemented here will be implemented there. The interfaces are
defined by the L<ExtUtils::CBuilder> documentation.
=head1 AUTHOR
Ken Williams <ken@mathforum.org>
Most of the code here was written by Randy W. Sims <RandyS@ThePierianSpring.org>.
=head1 SEE ALSO
perl(1), ExtUtils::CBuilder(3), ExtUtils::MakeMaker(3)
=cut