package ExtUtils::CBuilder::Base; use strict; use File::Spec; use File::Basename; use Cwd (); use Config; use Text::ParseWords; use vars qw($VERSION); $VERSION = '0.21'; sub new { my $class = shift; my $self = bless {@_}, $class; $self->{properties}{perl} = $class->find_perl_interpreter or warn "Warning: Can't locate your perl binary"; while (my ($k,$v) = each %Config) { $self->{config}{$k} = $v unless exists $self->{config}{$k}; } return $self; } sub find_perl_interpreter { my $perl; File::Spec->file_name_is_absolute($perl = $^X) or -f ($perl = $Config::Config{perlpath}) or ($perl = $^X); return $perl; } sub add_to_cleanup { my $self = shift; foreach (@_) { $self->{files_to_clean}{$_} = 1; } } sub cleanup { my $self = shift; foreach my $file (keys %{$self->{files_to_clean}}) { unlink $file; } } sub object_file { my ($self, $filename) = @_; # File name, minus the suffix (my $file_base = $filename) =~ s/\.[^.]+$//; return "$file_base$self->{config}{obj_ext}"; } sub arg_include_dirs { my $self = shift; return map {"-I$_"} @_; } sub arg_nolink { '-c' } sub arg_object_file { my ($self, $file) = @_; return ('-o', $file); } sub arg_share_object_file { my ($self, $file) = @_; return ($self->split_like_shell($self->{config}{lddlflags}), '-o', $file); } sub arg_exec_file { my ($self, $file) = @_; return ('-o', $file); } sub arg_defines { my ($self, %args) = @_; return map "-D$_=$args{$_}", keys %args; } sub compile { my ($self, %args) = @_; die "Missing 'source' argument to compile()" unless defined $args{source}; my $cf = $self->{config}; # For convenience $args{object_file} ||= $self->object_file($args{source}); my @include_dirs = $self->arg_include_dirs (@{$args{include_dirs} || []}, $self->perl_inc()); my @defines = $self->arg_defines( %{$args{defines} || {}} ); my @extra_compiler_flags = $self->split_like_shell($args{extra_compiler_flags}); my @cccdlflags = $self->split_like_shell($cf->{cccdlflags}); my @ccflags = $self->split_like_shell($cf->{ccflags}); my @optimize = $self->split_like_shell($cf->{optimize}); my @flags = (@include_dirs, @defines, @cccdlflags, @extra_compiler_flags, $self->arg_nolink, @ccflags, @optimize, $self->arg_object_file($args{object_file}), ); my @cc = $self->split_like_shell($cf->{cc}); $self->do_system(@cc, @flags, $args{source}) or die "error building $args{object_file} from '$args{source}'"; return $args{object_file}; } sub have_compiler { my ($self) = @_; return $self->{have_compiler} if defined $self->{have_compiler}; my $tmpfile = File::Spec->catfile(File::Spec->tmpdir, 'compilet.c'); { local *FH; open FH, "> $tmpfile" or die "Can't create $tmpfile: $!"; print FH "int boot_compilet() { return 1; }\n"; close FH; } my ($obj_file, @lib_files); eval { $obj_file = $self->compile(source => $tmpfile); @lib_files = $self->link(objects => $obj_file, module_name => 'compilet'); }; warn $@ if $@; my $result = $self->{have_compiler} = $@ ? 0 : 1; foreach (grep defined, $tmpfile, $obj_file, @lib_files) { 1 while unlink; } return $result; } sub lib_file { my ($self, $dl_file) = @_; $dl_file =~ s/\.[^.]+$//; $dl_file =~ tr/"//d; return "$dl_file.$self->{config}{dlext}"; } sub exe_file { my ($self, $dl_file) = @_; $dl_file =~ s/\.[^.]+$//; $dl_file =~ tr/"//d; return "$dl_file$self->{config}{_exe}"; } sub need_prelink { 0 } sub extra_link_args_after_prelink { return } sub prelink { my ($self, %args) = @_; ($args{dl_file} = $args{dl_name}) =~ s/.*::// unless $args{dl_file}; require ExtUtils::Mksymlists; ExtUtils::Mksymlists::Mksymlists( # dl. abbrev for dynamic library DL_VARS => $args{dl_vars} || [], DL_FUNCS => $args{dl_funcs} || {}, FUNCLIST => $args{dl_func_list} || [], IMPORTS => $args{dl_imports} || {}, NAME => $args{dl_name}, # Name of the Perl module DLBASE => $args{dl_base}, # Basename of DLL file FILE => $args{dl_file}, # Dir + Basename of symlist file VERSION => (defined $args{dl_version} ? $args{dl_version} : '0.0'), ); # Mksymlists will create one of these files return grep -e, map "$args{dl_file}.$_", qw(ext def opt); } sub link { my ($self, %args) = @_; return $self->_do_link('lib_file', lddl => 1, %args); } sub link_executable { my ($self, %args) = @_; return $self->_do_link('exe_file', lddl => 0, %args); } sub _do_link { my ($self, $type, %args) = @_; my $cf = $self->{config}; # For convenience my $objects = delete $args{objects}; $objects = [$objects] unless ref $objects; my $out = $args{$type} || $self->$type($objects->[0]); my @temp_files; @temp_files = $self->prelink(%args, dl_name => $args{module_name}) if $args{lddl} && $self->need_prelink; my @linker_flags = ($self->split_like_shell($args{extra_linker_flags}), $self->extra_link_args_after_prelink(%args, dl_name => $args{module_name}, prelink_res => \@temp_files)); my @output = $args{lddl} ? $self->arg_share_object_file($out) : $self->arg_exec_file($out); my @shrp = $self->split_like_shell($cf->{shrpenv}); my @ld = $self->split_like_shell($cf->{ld}); $self->do_system(@shrp, @ld, @output, @$objects, @linker_flags) or die "error building $out from @$objects"; return wantarray ? ($out, @temp_files) : $out; } sub do_system { my ($self, @cmd) = @_; print "@cmd\n" if !$self->{quiet}; return !system(@cmd); } sub split_like_shell { my ($self, $string) = @_; return () unless defined($string); return @$string if UNIVERSAL::isa($string, 'ARRAY'); $string =~ s/^\s+|\s+$//g; return () unless length($string); return Text::ParseWords::shellwords($string); } # if building perl, perl's main source directory sub perl_src { # N.B. makemaker actually searches regardless of PERL_CORE, but # only squawks at not finding it if PERL_CORE is set return unless $ENV{PERL_CORE}; my $Updir = File::Spec->updir; my $dir = File::Spec->curdir; # Try up to 5 levels upwards for (0..10) { if ( -f File::Spec->catfile($dir,"config_h.SH") && -f File::Spec->catfile($dir,"perl.h") && -f File::Spec->catfile($dir,"lib","Exporter.pm") ) { return Cwd::realpath( $dir ); } $dir = File::Spec->catdir($dir, $Updir); } warn "PERL_CORE is set but I can't find your perl source!\n"; return ''; # return empty string if $ENV{PERL_CORE} but can't find dir ??? } # directory of perl's include files sub perl_inc { my $self = shift; $self->perl_src() || File::Spec->catdir($self->{config}{archlibexp},"CORE"); } sub DESTROY { my $self = shift; local($., $@, $!, $^E, $?); $self->cleanup(); } 1;