makemaker.pm

MSYS在windows下模拟了一个类unix的终端

    } else {
	parse_args($self,split(' ', $ENV{PERL_MM_OPT} || ''),@ARGV);
    }

    $self->{NAME} ||= $self->guess_name;

    ($self->{NAME_SYM} = $self->{NAME}) =~ s/\W+/_/g;

    $self->init_main();

    if (! $self->{PERL_SRC} ) {
	my($pthinks) = $self->canonpath($INC{'Config.pm'});
	my($cthinks) = $self->catfile($Config{'archlibexp'},'Config.pm');
	$pthinks = VMS::Filespec::vmsify($pthinks) if $Is_VMS;
	if ($pthinks ne $cthinks &&
	    !($Is_Win32 and lc($pthinks) eq lc($cthinks))) {
            print "Have $pthinks expected $cthinks\n";
	    if ($Is_Win32) {
		$pthinks =~ s![/\\]Config\.pm$!!i; $pthinks =~ s!.*[/\\]!!;
	    }
	    else {
		$pthinks =~ s!/Config\.pm$!!; $pthinks =~ s!.*/!!;
	    }
	    print STDOUT <<END unless $self->{UNINSTALLED_PERL};
Your perl and your Config.pm seem to have different ideas about the architecture
they are running on.
Perl thinks: [$pthinks]
Config says: [$Config{archname}]
This may or may not cause problems. Please check your installation of perl if you
have problems building this extension.
END
	}
    }

    $self->init_dirscan();
    $self->init_others();
    my($argv) = neatvalue(\@ARGV);
    $argv =~ s/^\[/(/;
    $argv =~ s/\]$/)/;

    push @{$self->{RESULT}}, <<END;
# This Makefile is for the $self->{NAME} extension to perl.
#
# It was generated automatically by MakeMaker version
# $VERSION (Revision: $Revision) from the contents of
# Makefile.PL. Don't edit this file, edit Makefile.PL instead.
#
#	ANY CHANGES MADE HERE WILL BE LOST!
#
#   MakeMaker ARGV: $argv
#
#   MakeMaker Parameters:
END

    foreach $key (sort keys %initial_att){
	my($v) = neatvalue($initial_att{$key});
	$v =~ s/(CODE|HASH|ARRAY|SCALAR)\([\dxa-f]+\)/$1\(...\)/;
	$v =~ tr/\n/ /s;
	push @{$self->{RESULT}}, "#	$key => $v";
    }

    # turn the SKIP array into a SKIPHASH hash
    my (%skip,$skip);
    for $skip (@{$self->{SKIP} || []}) {
	$self->{SKIPHASH}{$skip} = 1;
    }
    delete $self->{SKIP}; # free memory

    if ($self->{PARENT}) {
	for (qw/install dist dist_basics dist_core dist_dir dist_test dist_ci/) {
	    $self->{SKIPHASH}{$_} = 1;
	}
    }

    # We run all the subdirectories now. They don't have much to query
    # from the parent, but the parent has to query them: if they need linking!
    unless ($self->{NORECURS}) {
	$self->eval_in_subdirs if @{$self->{DIR}};
    }

    my $section;
    foreach $section ( @MM_Sections ){
	print "Processing Makefile '$section' section\n" if ($Verbose >= 2);
	my($skipit) = $self->skipcheck($section);
	if ($skipit){
	    push @{$self->{RESULT}}, "\n# --- MakeMaker $section section $skipit.";
	} else {
	    my(%a) = %{$self->{$section} || {}};
	    push @{$self->{RESULT}}, "\n# --- MakeMaker $section section:";
	    push @{$self->{RESULT}}, "# " . join ", ", %a if $Verbose && %a;
	    push @{$self->{RESULT}}, $self->nicetext($self->$section( %a ));
	}
    }

    push @{$self->{RESULT}}, "\n# End.";

    $self;
}

sub WriteEmptyMakefile {
  if (-f 'Makefile.old') {
    chmod 0666, 'Makefile.old';
    unlink 'Makefile.old' or warn "unlink Makefile.old: $!";
  }
  rename 'Makefile', 'Makefile.old' or warn "rename Makefile Makefile.old: $!"
    if -f 'Makefile';
  open MF, '> Makefile' or die "open Makefile for write: $!";
  print MF <<'EOP';
all:

clean:

install:

makemakerdflt:

test:

EOP
  close MF or die "close Makefile for write: $!";
}

sub check_manifest {
    print STDOUT "Checking if your kit is complete...\n";
    require ExtUtils::Manifest;
    $ExtUtils::Manifest::Quiet=$ExtUtils::Manifest::Quiet=1; #avoid warning
    my(@missed)=ExtUtils::Manifest::manicheck();
    if (@missed){
	print STDOUT "Warning: the following files are missing in your kit:\n";
	print "\t", join "\n\t", @missed;
	print STDOUT "\n";
	print STDOUT "Please inform the author.\n";
    } else {
	print STDOUT "Looks good\n";
    }
}

sub parse_args{
    my($self, @args) = @_;
    foreach (@args){
	unless (m/(.*?)=(.*)/){
	    help(),exit 1 if m/^help$/;
	    ++$Verbose if m/^verb/;
	    next;
	}
	my($name, $value) = ($1, $2);
	if ($value =~ m/^~(\w+)?/){ # tilde with optional username
	    $value =~ s [^~(\w*)]
		[$1 ?
		 ((getpwnam($1))[7] || "~$1") :
		 (getpwuid($>))[7]
		 ]ex;
	}
	$self->{uc($name)} = $value;
    }

    # catch old-style 'potential_libs' and inform user how to 'upgrade'
    if (defined $self->{potential_libs}){
	my($msg)="'potential_libs' => '$self->{potential_libs}' should be";
	if ($self->{potential_libs}){
	    print STDOUT "$msg changed to:\n\t'LIBS' => ['$self->{potential_libs}']\n";
	} else {
	    print STDOUT "$msg deleted.\n";
	}
	$self->{LIBS} = [$self->{potential_libs}];
	delete $self->{potential_libs};
    }
    # catch old-style 'ARMAYBE' and inform user how to 'upgrade'
    if (defined $self->{ARMAYBE}){
	my($armaybe) = $self->{ARMAYBE};
	print STDOUT "ARMAYBE => '$armaybe' should be changed to:\n",
			"\t'dynamic_lib' => {ARMAYBE => '$armaybe'}\n";
	my(%dl) = %{$self->{dynamic_lib} || {}};
	$self->{dynamic_lib} = { %dl, ARMAYBE => $armaybe};
	delete $self->{ARMAYBE};
    }
    if (defined $self->{LDTARGET}){
	print STDOUT "LDTARGET should be changed to LDFROM\n";
	$self->{LDFROM} = $self->{LDTARGET};
	delete $self->{LDTARGET};
    }
    # Turn a DIR argument on the command line into an array
    if (defined $self->{DIR} && ref \$self->{DIR} eq 'SCALAR') {
	# So they can choose from the command line, which extensions they want
	# the grep enables them to have some colons too much in case they
	# have to build a list with the shell
	$self->{DIR} = [grep $_, split ":", $self->{DIR}];
    }
    # Turn a INCLUDE_EXT argument on the command line into an array
    if (defined $self->{INCLUDE_EXT} && ref \$self->{INCLUDE_EXT} eq 'SCALAR') {
	$self->{INCLUDE_EXT} = [grep $_, split '\s+', $self->{INCLUDE_EXT}];
    }
    # Turn a EXCLUDE_EXT argument on the command line into an array
    if (defined $self->{EXCLUDE_EXT} && ref \$self->{EXCLUDE_EXT} eq 'SCALAR') {
	$self->{EXCLUDE_EXT} = [grep $_, split '\s+', $self->{EXCLUDE_EXT}];
    }
    my $mmkey;
    foreach $mmkey (sort keys %$self){
	print STDOUT "	$mmkey => ", neatvalue($self->{$mmkey}), "\n" if $Verbose;
	print STDOUT "'$mmkey' is not a known MakeMaker parameter name.\n"
	    unless exists $Recognized_Att_Keys{$mmkey};
    }
    $| = 1 if $Verbose;
}

sub check_hints {
    my($self) = @_;
    # We allow extension-specific hints files.

    return unless -d "hints";

    # First we look for the best hintsfile we have
    my(@goodhints);
    my($hint)="${^O}_$Config{osvers}";
    $hint =~ s/\./_/g;
    $hint =~ s/_$//;
    return unless $hint;

    # Also try without trailing minor version numbers.
    while (1) {
	last if -f "hints/$hint.pl";      # found
    } continue {
	last unless $hint =~ s/_[^_]*$//; # nothing to cut off
    }
    return unless -f "hints/$hint.pl";    # really there

    # execute the hintsfile:
#    use FileHandle ();
#    my $fh = new FileHandle;
#    $fh->open("hints/$hint.pl");
    local *FH;
    open(FH,"hints/$hint.pl");
#    @goodhints = <$fh>;
    @goodhints = <FH>;
#    $fh->close;
    close FH;
    print STDOUT "Processing hints file hints/$hint.pl\n";
    eval join('',@goodhints);
    print STDOUT $@ if $@;
}

sub mv_all_methods {
    my($from,$to) = @_;
    my($method);
    my($symtab) = \%{"${from}::"};
#    no strict;

    # Here you see the *current* list of methods that are overridable
    # from Makefile.PL via MY:: subroutines. As of VERSION 5.07 I'm
    # still trying to reduce the list to some reasonable minimum --
    # because I want to make it easier for the user. A.K.

    foreach $method (@Overridable) {

	# We cannot say "next" here. Nick might call MY->makeaperl
	# which isn't defined right now

	# Above statement was written at 4.23 time when Tk-b8 was
	# around. As Tk-b9 only builds with 5.002something and MM 5 is
	# standard, we try to enable the next line again. It was
	# commented out until MM 5.23

	next unless defined &{"${from}::$method"};

	*{"${to}::$method"} = \&{"${from}::$method"};

	# delete would do, if we were sure, nobody ever called
	# MY->makeaperl directly
	
	# delete $symtab->{$method};
	
	# If we delete a method, then it will be undefined and cannot
	# be called.  But as long as we have Makefile.PLs that rely on
	# %MY:: being intact, we have to fill the hole with an
	# inheriting method:

	eval "package MY; sub $method { shift->SUPER::$method(\@_); }";
    }

    # We have to clean out %INC also, because the current directory is
    # changed frequently and Graham Barr prefers to get his version
    # out of a History.pl file which is "required" so woudn't get
    # loaded again in another extension requiring a History.pl

    # With perl5.002_01 the deletion of entries in %INC caused Tk-b11
    # to core dump in the middle of a require statement. The required
    # file was Tk/MMutil.pm.  The consequence is, we have to be
    # extremely careful when we try to give perl a reason to reload a
    # library with same name.  The workaround prefers to drop nothing
    # from %INC and teach the writers not to use such libraries.

#    my $inc;
#    foreach $inc (keys %INC) {
#	#warn "***$inc*** deleted";
#	delete $INC{$inc};
#    }
}

sub skipcheck {
    my($self) = shift;
    my($section) = @_;
    if ($section eq 'dynamic') {
	print STDOUT "Warning (non-fatal): Target 'dynamic' depends on targets ",
	"in skipped section 'dynamic_bs'\n"
            if $self->{SKIPHASH}{dynamic_bs} && $Verbose;
        print STDOUT "Warning (non-fatal): Target 'dynamic' depends on targets ",
	"in skipped section 'dynamic_lib'\n"
            if $self->{SKIPHASH}{dynamic_lib} && $Verbose;
    }
    if ($section eq 'dynamic_lib') {
        print STDOUT "Warning (non-fatal): Target '\$(INST_DYNAMIC)' depends on ",
	"targets in skipped section 'dynamic_bs'\n"
            if $self->{SKIPHASH}{dynamic_bs} && $Verbose;
    }
    if ($section eq 'static') {
        print STDOUT "Warning (non-fatal): Target 'static' depends on targets ",
	"in skipped section 'static_lib'\n"
            if $self->{SKIPHASH}{static_lib} && $Verbose;
    }
    return 'skipped' if $self->{SKIPHASH}{$section};
    return '';
}

sub flush {
    my $self = shift;
    my($chunk);
#    use FileHandle ();
#    my $fh = new FileHandle;
    local *FH;
    print STDOUT "Writing $self->{MAKEFILE} for $self->{NAME}\n";

    unlink($self->{MAKEFILE}, "MakeMaker.tmp", $Is_VMS ? 'Descrip.MMS' : '');
#    $fh->open(">MakeMaker.tmp") or die "Unable to open MakeMaker.tmp: $!";
    open(FH,">MakeMaker.tmp") or die "Unable to open MakeMaker.tmp: $!";

    for $chunk (@{$self->{RESULT}}) {
#	print $fh "$chunk\n";
	print FH "$chunk\n";
    }

#    $fh->close;
    close FH;
    my($finalname) = $self->{MAKEFILE};
    rename("MakeMaker.tmp", $finalname);
    chmod 0644, $finalname unless $Is_VMS;

    if ($self->{PARENT}) {
	foreach (keys %$self) { # safe memory
	    delete $self->{$_} unless $Keep_after_flush{$_};
	}
    }

    system("$Config::Config{eunicefix} $finalname") unless $Config::Config{eunicefix} eq ":";
}

# The following mkbootstrap() is only for installations that are calling
# the pre-4.1 mkbootstrap() from their old Makefiles. This MakeMaker
# writes Makefiles, that use ExtUtils::Mkbootstrap directly.
sub mkbootstrap {
    die <<END;
!!! Your Makefile has been built such a long time ago, !!!
!!! that is unlikely to work with current MakeMaker.   !!!
!!! Please rebuild your Makefile                       !!!
END
}

# Ditto for mksymlists() as of MakeMaker 5.17
sub mksymlists {
    die <<END;
!!! Your Makefile has been built such a long time ago, !!!
!!! that is unlikely to work with current MakeMaker.   !!!
!!! Please rebuild your Makefile                       !!!
END
}

sub neatvalue {
    my($v) = @_;
    return "undef" unless defined $v;
    my($t) = ref $v;
    return "q[$v]" unless $t;
    if ($t eq 'ARRAY') {
	my(@m, $elem, @neat);
	push @m, "[";
	foreach $elem (@$v) {
	    push @neat, "q[$elem]";
	}
	push @m, join ", ", @neat;
	push @m, "]";
	return join "", @m;
    }
    return "$v" unless $t eq 'HASH';
    my(@m, $key, $val);
    while (($key,$val) = each %$v){
	last unless defined $key; # cautious programming in case (undef,undef) is true
	push(@m,"$key=>".neatvalue($val)) ;
    }
    return "{ ".join(', ',@m)." }";
}

sub selfdocument {
    my($self) = @_;
    my(@m);
    if ($Verbose){
	push @m, "\n# Full list of MakeMaker attribute values:";
	foreach $key (sort keys %$self){
	    next if $key eq 'RESULT' || $key =~ /^[A-Z][a-z]/;
	    my($v) = neatvalue($self->{$key});
	    $v =~ s/(CODE|HASH|ARRAY|SCALAR)\([\dxa-f]+\)/$1\(...\)/;
	    $v =~ tr/\n/ /s;
	    push @m, "#	$key => $v";
	}
    }
    join "\n", @m;
}

package ExtUtils::MakeMaker;
1;

__END__