diff options
Diffstat (limited to 'gnu/usr.bin/perl/lib/ExtUtils/MakeMaker.pm')
| -rw-r--r-- | gnu/usr.bin/perl/lib/ExtUtils/MakeMaker.pm | 1808 |
1 files changed, 1808 insertions, 0 deletions
diff --git a/gnu/usr.bin/perl/lib/ExtUtils/MakeMaker.pm b/gnu/usr.bin/perl/lib/ExtUtils/MakeMaker.pm new file mode 100644 index 00000000000..3ee3ac6ab3b --- /dev/null +++ b/gnu/usr.bin/perl/lib/ExtUtils/MakeMaker.pm @@ -0,0 +1,1808 @@ +BEGIN {require 5.002;} # MakeMaker 5.17 was the last MakeMaker that was compatible with perl5.001m + +package ExtUtils::MakeMaker; + +$Version = $VERSION = "5.34"; +$Version_OK = "5.17"; # Makefiles older than $Version_OK will die + # (Will be checked from MakeMaker version 4.13 onwards) +($Revision = substr(q$Revision: 1.1 $, 10)) =~ s/\s+$//; + + + +require Exporter; +use Config; +use Carp (); +#use FileHandle (); + +use vars qw( + + @ISA @EXPORT @EXPORT_OK $AUTOLOAD + $ISA_TTY $Is_Mac $Is_OS2 $Is_VMS $Revision $Setup_done + $VERSION $Verbose $Version_OK %Config %Keep_after_flush + %MM_Sections %Prepend_dot_dot %Recognized_Att_Keys + @Get_from_Config @MM_Sections @Overridable @Parent + + ); +# use strict; + +eval {require DynaLoader;}; # Get mod2fname, if defined. Will fail + # with miniperl. + +# +# Set up the inheritance before we pull in the MM_* packages, because they +# import variables and functions from here +# +@ISA = qw(Exporter); +@EXPORT = qw(&WriteMakefile &writeMakefile $Verbose &prompt); +@EXPORT_OK = qw($VERSION &Version_check &neatvalue &mkbootstrap &mksymlists + $Version); + # $Version in mixed case will go away! + +# +# Dummy package MM inherits actual methods from OS-specific +# default packages. We use this intermediate package so +# MY::XYZ->func() can call MM->func() and get the proper +# default routine without having to know under what OS +# it's running. +# +@MM::ISA = qw[ExtUtils::MM_Unix ExtUtils::Liblist ExtUtils::MakeMaker]; + +# +# Setup dummy package: +# MY exists for overriding methods to be defined within +# +{ + package MY; + @MY::ISA = qw(MM); +### sub AUTOLOAD { use Devel::Symdump; print Devel::Symdump->rnew->as_string; Carp::confess "hey why? $AUTOLOAD" } + package MM; + sub DESTROY {} +} + +# "predeclare the package: we only load it via AUTOLOAD +# but we have already mentioned it in @ISA +package ExtUtils::Liblist; + +package ExtUtils::MakeMaker; +# +# Now we can can pull in the friends +# +$Is_VMS = $^O eq 'VMS'; +$Is_OS2 = $^O =~ m|^os/?2$|i; +$Is_Mac = $^O eq 'MacOS'; + +require ExtUtils::MM_Unix; + +if ($Is_VMS) { + require ExtUtils::MM_VMS; + require VMS::Filespec; # is a noop as long as we require it within MM_VMS +} +if ($Is_OS2) { + require ExtUtils::MM_OS2; +} +if ($Is_Mac) { + require ExtUtils::MM_Mac; +} + +# The SelfLoader would bring a lot of overhead for MakeMaker, because +# we know for sure we will use most of the autoloaded functions once +# we have to use one of them. So we write our own loader + +sub AUTOLOAD { + my $code; + if (defined fileno(DATA)) { + my $fh = select DATA; + my $o = $/; # For future reads from the file. + $/ = "\n__END__\n"; + $code = <DATA>; + $/ = $o; + select $fh; + close DATA; + eval $code; + if ($@) { + $@ =~ s/ at .*\n//; + Carp::croak $@; + } + } else { + warn "AUTOLOAD called unexpectedly for $AUTOLOAD"; + } + defined(&$AUTOLOAD) or die "Myloader inconsistency error"; + goto &$AUTOLOAD; +} + +# The only subroutine we do not SelfLoad is Version_Check because it's +# called so often. Loading this minimum still requires 1.2 secs on my +# Indy :-( + +sub Version_check { + my($checkversion) = @_; + die "Your Makefile was built with ExtUtils::MakeMaker v $checkversion. +Current Version is $ExtUtils::MakeMaker::VERSION. There have been considerable +changes in the meantime. +Please rerun 'perl Makefile.PL' to regenerate the Makefile.\n" + if $checkversion < $Version_OK; + printf STDOUT "%s %s %s %s.\n", "Makefile built with ExtUtils::MakeMaker v", + $checkversion, "Current Version is", $VERSION + unless $checkversion == $VERSION; +} + +sub warnhandler { + $_[0] =~ /^Use of uninitialized value/ && return; + $_[0] =~ /used only once/ && return; + $_[0] =~ /^Subroutine\s+[\w:]+\s+redefined/ && return; + warn @_; +} + +sub ExtUtils::MakeMaker::eval_in_subdirs ; +sub ExtUtils::MakeMaker::eval_in_x ; +sub ExtUtils::MakeMaker::full_setup ; +sub ExtUtils::MakeMaker::writeMakefile ; +sub ExtUtils::MakeMaker::new ; +sub ExtUtils::MakeMaker::check_manifest ; +sub ExtUtils::MakeMaker::parse_args ; +sub ExtUtils::MakeMaker::check_hints ; +sub ExtUtils::MakeMaker::mv_all_methods ; +sub ExtUtils::MakeMaker::skipcheck ; +sub ExtUtils::MakeMaker::flush ; +sub ExtUtils::MakeMaker::mkbootstrap ; +sub ExtUtils::MakeMaker::mksymlists ; +sub ExtUtils::MakeMaker::neatvalue ; +sub ExtUtils::MakeMaker::selfdocument ; +sub ExtUtils::MakeMaker::WriteMakefile ; +sub ExtUtils::MakeMaker::prompt ; + +1; +#__DATA__ +package ExtUtils::MakeMaker; + +sub WriteMakefile { + Carp::croak "WriteMakefile: Need even number of args" if @_ % 2; + local $SIG{__WARN__} = \&warnhandler; + + unless ($Setup_done++){ + full_setup(); + undef &ExtUtils::MakeMaker::full_setup; #safe memory + } + my %att = @_; + MM->new(\%att)->flush; +} + +sub prompt ($;$) { + my($mess,$def)=@_; + $ISA_TTY = -t STDIN && -t STDOUT ; + Carp::confess("prompt function called without an argument") unless defined $mess; + my $dispdef = defined $def ? "[$def] " : " "; + $def = defined $def ? $def : ""; + my $ans; + if ($ISA_TTY) { + local $|=1; + print "$mess $dispdef"; + chomp($ans = <STDIN>); + } + return $ans || $def; +} + +sub eval_in_subdirs { + my($self) = @_; + my($dir); + use Cwd 'cwd'; + my $pwd = cwd(); + + foreach $dir (@{$self->{DIR}}){ + my($abs) = $self->catdir($pwd,$dir); + $self->eval_in_x($abs); + } + chdir $pwd; +} + +sub eval_in_x { + my($self,$dir) = @_; + package main; + chdir $dir or Carp::carp("Couldn't change to directory $dir: $!"); +# use FileHandle (); +# my $fh = new FileHandle; +# $fh->open("Makefile.PL") or Carp::carp("Couldn't open Makefile.PL in $dir"); + local *FH; + open(FH,"Makefile.PL") or Carp::carp("Couldn't open Makefile.PL in $dir"); +# my $eval = join "", <$fh>; + my $eval = join "", <FH>; +# $fh->close; + close FH; + eval $eval; + if ($@) { +# if ($@ =~ /prerequisites/) { +# die "MakeMaker WARNING: $@"; +# } else { +# warn "WARNING from evaluation of $dir/Makefile.PL: $@"; +# } + warn "WARNING from evaluation of $dir/Makefile.PL: $@"; + } +} + +sub full_setup { + $Verbose ||= 0; + $^W=1; + + # package name for the classes into which the first object will be blessed + $PACKNAME = "PACK000"; + + @Attrib_help = qw/ + + C CONFIG CONFIGURE DEFINE DIR DISTNAME DL_FUNCS DL_VARS EXE_FILES + EXCLUDE_EXT INCLUDE_EXT NO_VC FIRST_MAKEFILE FULLPERL H INC + INSTALLARCHLIB INSTALLBIN INSTALLDIRS INSTALLMAN1DIR + INSTALLMAN3DIR INSTALLPRIVLIB INSTALLSCRIPT INSTALLSITEARCH + INSTALLSITELIB INST_ARCHLIB INST_BIN INST_EXE INST_LIB + INST_MAN1DIR INST_MAN3DIR INST_SCRIPT LDFROM LIBPERL_A LIBS + LINKTYPE MAKEAPERL MAKEFILE MAN1PODS MAN3PODS MAP_TARGET MYEXTLIB + NAME NEEDS_LINKING NOECHO NORECURS OBJECT OPTIMIZE PERL PERLMAINCC + PERL_ARCHLIB PERL_LIB PERL_SRC PL_FILES PM PMLIBDIRS PREFIX + PREREQ_PM SKIP TYPEMAPS VERSION VERSION_FROM XS XSOPT XSPROTOARG + XS_VERSION clean depend dist dynamic_lib linkext macro realclean + tool_autosplit + + installpm + + /; + + # ^^^ installpm is deprecated, will go about Summer 96 + + # @Overridable is close to @MM_Sections but not identical. The + # order is important. Many subroutines declare macros. These + # depend on each other. Let's try to collect the macros up front, + # then pasthru, then the rules. + + # MM_Sections are the sections we have to call explicitly + # in Overridable we have subroutines that are used indirectly + + + @MM_Sections = + qw( + + post_initialize const_config constants tool_autosplit tool_xsubpp + tools_other dist macro depend cflags const_loadlibs const_cccmd + post_constants + + pasthru + + c_o xs_c xs_o top_targets linkext dlsyms dynamic dynamic_bs + dynamic_lib static static_lib manifypods processPL installbin subdirs + clean realclean dist_basics dist_core dist_dir dist_test dist_ci + install force perldepend makefile staticmake test + + ); # loses section ordering + + @Overridable = @MM_Sections; + push @Overridable, qw[ + + dir_target libscan makeaperl needs_linking subdir_x test_via_harness + test_via_script + + ]; + + push @MM_Sections, qw[ + + pm_to_blib selfdocument + + ]; + + # Postamble needs to be the last that was always the case + push @MM_Sections, "postamble"; + push @Overridable, "postamble"; + + # All sections are valid keys. + @Recognized_Att_Keys{@MM_Sections} = (1) x @MM_Sections; + + # we will use all these variables in the Makefile + @Get_from_Config = + qw( + ar cc cccdlflags ccdlflags dlext dlsrc ld lddlflags ldflags libc + lib_ext obj_ext ranlib sitelibexp sitearchexp so + ); + + my $item; + foreach $item (@Attrib_help){ + $Recognized_Att_Keys{$item} = 1; + } + foreach $item (@Get_from_Config) { + $Recognized_Att_Keys{uc $item} = $Config{$item}; + print "Attribute '\U$item\E' => '$Config{$item}'\n" + if ($Verbose >= 2); + } + + # + # When we eval a Makefile.PL in a subdirectory, that one will ask + # us (the parent) for the values and will prepend "..", so that + # all files to be installed end up below OUR ./blib + # + %Prepend_dot_dot = + qw( + + INST_BIN 1 INST_EXE 1 INST_LIB 1 INST_ARCHLIB 1 INST_SCRIPT + 1 MAP_TARGET 1 INST_MAN1DIR 1 INST_MAN3DIR 1 PERL_SRC 1 + PERL 1 FULLPERL 1 + + ); + + my @keep = qw/ + NEEDS_LINKING HAS_LINK_CODE + /; + @Keep_after_flush{@keep} = (1) x @keep; +} + +sub writeMakefile { + die <<END; + +The extension you are trying to build apparently is rather old and +most probably outdated. We detect that from the fact, that a +subroutine "writeMakefile" is called, and this subroutine is not +supported anymore since about October 1994. + +Please contact the author or look into CPAN (details about CPAN can be +found in the FAQ and at http:/www.perl.com) for a more recent version +of the extension. If you're really desperate, you can try to change +the subroutine name from writeMakefile to WriteMakefile and rerun +'perl Makefile.PL', but you're most probably left alone, when you do +so. + +The MakeMaker team + +END +} + +sub ExtUtils::MakeMaker::new { + my($class,$self) = @_; + my($key); + + print STDOUT "MakeMaker (v$VERSION)\n" if $Verbose; + if (-f "MANIFEST" && ! -f "Makefile"){ + check_manifest(); + } + + $self = {} unless (defined $self); + + check_hints($self); + + my(%initial_att) = %$self; # record initial attributes + + my($prereq); + foreach $prereq (sort keys %{$self->{PREREQ_PM}}) { + my $eval = "use $prereq $self->{PREREQ_PM}->{$prereq}"; + eval $eval; + if ($@){ + warn "Warning: prerequisite $prereq $self->{PREREQ_PM}->{$prereq} not found"; + } else { + delete $self->{PREREQ_PM}{$prereq}; + } + } +# if (@unsatisfied){ +# unless (defined $ExtUtils::MakeMaker::useCPAN) { +# print qq{MakeMaker WARNING: prerequisites not found (@unsatisfied) +# Please install these modules first and rerun 'perl Makefile.PL'.\n}; +# if ($ExtUtils::MakeMaker::hasCPAN) { +# $ExtUtils::MakeMaker::useCPAN = prompt(qq{Should I try to use the CPAN module to fetch them for you?},"yes"); +# } else { +# print qq{Hint: You may want to install the CPAN module to autofetch the needed modules\n}; +# $ExtUtils::MakeMaker::useCPAN=0; +# } +# } +# if ($ExtUtils::MakeMaker::useCPAN) { +# require CPAN; +# CPAN->import(@unsatisfied); +# } else { +# die qq{prerequisites not found (@unsatisfied)}; +# } +# warn qq{WARNING: prerequisites not found (@unsatisfied)}; +# } + + if (defined $self->{CONFIGURE}) { + if (ref $self->{CONFIGURE} eq 'CODE') { + $self = { %$self, %{&{$self->{CONFIGURE}}}}; + } else { + Carp::croak "Attribute 'CONFIGURE' to WriteMakefile() not a code reference\n"; + } + } + + # This is for old Makefiles written pre 5.00, will go away + if ( Carp::longmess("") =~ /runsubdirpl/s ){ + #$self->{Correct_relativ_directories}++; + Carp::carp("WARNING: Please rerun 'perl Makefile.PL' to regenerate your Makefiles\n"); + } else { + $self->{Correct_relativ_directories}=0; + } + + my $class = ++$PACKNAME; + { +# no strict; + print "Blessing Object into class [$class]\n" if $Verbose>=2; + mv_all_methods("MY",$class); + bless $self, $class; + push @Parent, $self; + @{"$class\:\:ISA"} = 'MM'; + } + + if (defined $Parent[-2]){ + $self->{PARENT} = $Parent[-2]; + my $key; + for $key (keys %Prepend_dot_dot) { + next unless defined $self->{PARENT}{$key}; + $self->{$key} = $self->{PARENT}{$key}; + $self->{$key} = $self->catdir("..",$self->{$key}) + unless $self->file_name_is_absolute($self->{$key}); + } + $self->{PARENT}->{CHILDREN}->{$class} = $self if $self->{PARENT}; + } else { + parse_args($self,@ARGV); + } + + $self->{NAME} ||= $self->guess_name; + + ($self->{NAME_SYM} = $self->{NAME}) =~ s/\W+/_/g; + + $self->init_main(); + + if (! $self->{PERL_SRC} ) { + my($pthinks) = $INC{'Config.pm'}; + $pthinks = VMS::Filespec::vmsify($pthinks) if $Is_VMS; + if ($pthinks ne $self->catfile($Config{archlibexp},'Config.pm')){ + $pthinks =~ s!/Config\.pm$!!; + $pthinks =~ s!.*/!!; + print STDOUT <<END; +Your perl and your Config.pm seem to have different ideas about the architecture +they are running on. +Perl thinks: [$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(); + $self->init_others(); + + push @{$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 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."; + pop @Parent; + + $self; +} + +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; + } + # This may go away, in mid 1996 + if ($self->{Correct_relativ_directories}){ + $value = $self->catdir("..",$value) + if $Prepend_dot_dot{$name} && ! $self->file_name_is_absolute($value); + } + $self->{uc($name)} = $value; + } + # This may go away, in mid 1996 + delete $self->{Correct_relativ_directories}; + + # 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__ + +=head1 NAME + +ExtUtils::MakeMaker - create an extension Makefile + +=head1 SYNOPSIS + +C<use ExtUtils::MakeMaker;> + +C<WriteMakefile( ATTRIBUTE =E<gt> VALUE [, ...] );> + +which is really + +C<MM-E<gt>new(\%att)-E<gt>flush;> + +=head1 DESCRIPTION + +This utility is designed to write a Makefile for an extension module +from a Makefile.PL. It is based on the Makefile.SH model provided by +Andy Dougherty and the perl5-porters. + +It splits the task of generating the Makefile into several subroutines +that can be individually overridden. Each subroutine returns the text +it wishes to have written to the Makefile. + +MakeMaker is object oriented. Each directory below the current +directory that contains a Makefile.PL. Is treated as a separate +object. This makes it possible to write an unlimited number of +Makefiles with a single invocation of WriteMakefile(). + +=head2 How To Write A Makefile.PL + +The short answer is: Don't. Run h2xs(1) before you start thinking +about writing a module. For so called pm-only modules that consist of +C<*.pm> files only, h2xs has the very useful C<-X> switch. This will +generate dummy files of all kinds that are useful for the module +developer. + +The medium answer is: + + use ExtUtils::MakeMaker; + WriteMakefile( NAME => "Foo::Bar" ); + +The long answer is below. + +=head2 Default Makefile Behaviour + +The generated Makefile enables the user of the extension to invoke + + perl Makefile.PL # optionally "perl Makefile.PL verbose" + make + make test # optionally set TEST_VERBOSE=1 + make install # See below + +The Makefile to be produced may be altered by adding arguments of the +form C<KEY=VALUE>. E.g. + + perl Makefile.PL PREFIX=/tmp/myperl5 + +Other interesting targets in the generated Makefile are + + make config # to check if the Makefile is up-to-date + make clean # delete local temp files (Makefile gets renamed) + make realclean # delete derived files (including ./blib) + make ci # check in all the files in the MANIFEST file + make dist # see below the Distribution Support section + +=head2 make test + +MakeMaker checks for the existence of a file named "test.pl" in the +current directory and if it exists it adds commands to the test target +of the generated Makefile that will execute the script with the proper +set of perl C<-I> options. + +MakeMaker also checks for any files matching glob("t/*.t"). It will +add commands to the test target of the generated Makefile that execute +all matching files via the L<Test::Harness> module with the C<-I> +switches set correctly. + +=head2 make install + +make alone puts all relevant files into directories that are named by +the macros INST_LIB, INST_ARCHLIB, INST_SCRIPT, INST_MAN1DIR, and +INST_MAN3DIR. All these default to something below ./blib if you are +I<not> building below the perl source directory. If you I<are> +building below the perl source, INST_LIB and INST_ARCHLIB default to +../../lib, and INST_SCRIPT is not defined. + +The I<install> target of the generated Makefile copies the files found +below each of the INST_* directories to their INSTALL* +counterparts. Which counterparts are chosen depends on the setting of +INSTALLDIRS according to the following table: + + INSTALLDIRS set to + perl site + + INST_ARCHLIB INSTALLARCHLIB INSTALLSITEARCH + INST_LIB INSTALLPRIVLIB INSTALLSITELIB + INST_BIN INSTALLBIN + INST_SCRIPT INSTALLSCRIPT + INST_MAN1DIR INSTALLMAN1DIR + INST_MAN3DIR INSTALLMAN3DIR + +The INSTALL... macros in turn default to their %Config +($Config{installprivlib}, $Config{installarchlib}, etc.) counterparts. + +You can check the values of these variables on your system with + + perl -MConfig -le 'print join $/, map + sprintf("%20s: %s", $_, $Config{$_}), + grep /^install/, keys %Config' + +And to check the sequence in which the library directories are +searched by perl, run + + perl -le 'print join $/, @INC' + + +=head2 PREFIX attribute + +The PREFIX attribute can be used to set the INSTALL* attributes in one +go. The quickest way to install a module in a non-standard place + + perl Makefile.PL PREFIX=~ + +This will replace the string specified by $Config{prefix} in all +$Config{install*} values. + +Note, that the tilde expansion is done by MakeMaker, not by perl by +default, nor by make. + +If the user has superuser privileges, and is not working on AFS +(Andrew File System) or relatives, then the defaults for +INSTALLPRIVLIB, INSTALLARCHLIB, INSTALLSCRIPT, etc. will be appropriate, +and this incantation will be the best: + + perl Makefile.PL; make; make test + make install + +make install per default writes some documentation of what has been +done into the file C<$(INSTALLARCHLIB)/perllocal.pod>. This feature +can be bypassed by calling make pure_install. + +=head2 AFS users + +will have to specify the installation directories as these most +probably have changed since perl itself has been installed. They will +have to do this by calling + + perl Makefile.PL INSTALLSITELIB=/afs/here/today \ + INSTALLSCRIPT=/afs/there/now INSTALLMAN3DIR=/afs/for/manpages + make + +Be careful to repeat this procedure every time you recompile an +extension, unless you are sure the AFS installation directories are +still valid. + +=head2 Static Linking of a new Perl Binary + +An extension that is built with the above steps is ready to use on +systems supporting dynamic loading. On systems that do not support +dynamic loading, any newly created extension has to be linked together +with the available resources. MakeMaker supports the linking process +by creating appropriate targets in the Makefile whenever an extension +is built. You can invoke the corresponding section of the makefile with + + make perl + +That produces a new perl binary in the current directory with all +extensions linked in that can be found in INST_ARCHLIB , SITELIBEXP, +and PERL_ARCHLIB. To do that, MakeMaker writes a new Makefile, on +UNIX, this is called Makefile.aperl (may be system dependent). If you +want to force the creation of a new perl, it is recommended, that you +delete this Makefile.aperl, so the directories are searched-through +for linkable libraries again. + +The binary can be installed into the directory where perl normally +resides on your machine with + + make inst_perl + +To produce a perl binary with a different name than C<perl>, either say + + perl Makefile.PL MAP_TARGET=myperl + make myperl + make inst_perl + +or say + + perl Makefile.PL + make myperl MAP_TARGET=myperl + make inst_perl MAP_TARGET=myperl + +In any case you will be prompted with the correct invocation of the +C<inst_perl> target that installs the new binary into INSTALLBIN. + +make inst_perl per default writes some documentation of what has been +done into the file C<$(INSTALLARCHLIB)/perllocal.pod>. This +can be bypassed by calling make pure_inst_perl. + +Warning: the inst_perl: target will most probably overwrite your +existing perl binary. Use with care! + +Sometimes you might want to build a statically linked perl although +your system supports dynamic loading. In this case you may explicitly +set the linktype with the invocation of the Makefile.PL or make: + + perl Makefile.PL LINKTYPE=static # recommended + +or + + make LINKTYPE=static # works on most systems + +=head2 Determination of Perl Library and Installation Locations + +MakeMaker needs to know, or to guess, where certain things are +located. Especially INST_LIB and INST_ARCHLIB (where to put the files +during the make(1) run), PERL_LIB and PERL_ARCHLIB (where to read +existing modules from), and PERL_INC (header files and C<libperl*.*>). + +Extensions may be built either using the contents of the perl source +directory tree or from the installed perl library. The recommended way +is to build extensions after you have run 'make install' on perl +itself. You can do that in any directory on your hard disk that is not +below the perl source tree. The support for extensions below the ext +directory of the perl distribution is only good for the standard +extensions that come with perl. + +If an extension is being built below the C<ext/> directory of the perl +source then MakeMaker will set PERL_SRC automatically (e.g., +C<../..>). If PERL_SRC is defined and the extension is recognized as +a standard extension, then other variables default to the following: + + PERL_INC = PERL_SRC + PERL_LIB = PERL_SRC/lib + PERL_ARCHLIB = PERL_SRC/lib + INST_LIB = PERL_LIB + INST_ARCHLIB = PERL_ARCHLIB + +If an extension is being built away from the perl source then MakeMaker +will leave PERL_SRC undefined and default to using the installed copy +of the perl library. The other variables default to the following: + + PERL_INC = $archlibexp/CORE + PERL_LIB = $privlibexp + PERL_ARCHLIB = $archlibexp + INST_LIB = ./blib/lib + INST_ARCHLIB = ./blib/arch + +If perl has not yet been installed then PERL_SRC can be defined on the +command line as shown in the previous section. + + +=head2 Which architecture dependent directory? + +If you don't want to keep the defaults for the INSTALL* macros, +MakeMaker helps you to minimize the typing needed: the usual +relationship between INSTALLPRIVLIB and INSTALLARCHLIB is determined +by Configure at perl compilation time. MakeMaker supports the user who +sets INSTALLPRIVLIB. If INSTALLPRIVLIB is set, but INSTALLARCHLIB not, +then MakeMaker defaults the latter to be the same subdirectory of +INSTALLPRIVLIB as Configure decided for the counterparts in %Config , +otherwise it defaults to INSTALLPRIVLIB. The same relationship holds +for INSTALLSITELIB and INSTALLSITEARCH. + +MakeMaker gives you much more freedom than needed to configure +internal variables and get different results. It is worth to mention, +that make(1) also lets you configure most of the variables that are +used in the Makefile. But in the majority of situations this will not +be necessary, and should only be done, if the author of a package +recommends it (or you know what you're doing). + +=head2 Using Attributes and Parameters + +The following attributes can be specified as arguments to WriteMakefile() +or as NAME=VALUE pairs on the command line: + +=cut + +# The following "=item C" is used by the attrib_help routine +# likewise the "=back" below. So be careful when changing it! + +=over 2 + +=item C + +Ref to array of *.c file names. Initialised from a directory scan +and the values portion of the XS attribute hash. This is not +currently used by MakeMaker but may be handy in Makefile.PLs. + +=item CONFIG + +Arrayref. E.g. [qw(archname manext)] defines ARCHNAME & MANEXT from +config.sh. MakeMaker will add to CONFIG the following values anyway: +ar +cc +cccdlflags +ccdlflags +dlext +dlsrc +ld +lddlflags +ldflags +libc +lib_ext +obj_ext +ranlib +sitelibexp +sitearchexp +so + +=item CONFIGURE + +CODE reference. The subroutine should return a hash reference. The +hash may contain further attributes, e.g. {LIBS => ...}, that have to +be determined by some evaluation method. + +=item DEFINE + +Something like C<"-DHAVE_UNISTD_H"> + +=item DIR + +Ref to array of subdirectories containing Makefile.PLs e.g. [ 'sdbm' +] in ext/SDBM_File + +=item DISTNAME + +Your name for distributing the package (by tar file). This defaults to +NAME above. + +=item DL_FUNCS + +Hashref of symbol names for routines to be made available as +universal symbols. Each key/value pair consists of the package name +and an array of routine names in that package. Used only under AIX +(export lists) and VMS (linker options) at present. The routine +names supplied will be expanded in the same way as XSUB names are +expanded by the XS() macro. Defaults to + + {"$(NAME)" => ["boot_$(NAME)" ] } + +e.g. + + {"RPC" => [qw( boot_rpcb rpcb_gettime getnetconfigent )], + "NetconfigPtr" => [ 'DESTROY'] } + +=item DL_VARS + +Array of symbol names for variables to be made available as +universal symbols. Used only under AIX (export lists) and VMS +(linker options) at present. Defaults to []. (e.g. [ qw( +Foo_version Foo_numstreams Foo_tree ) ]) + +=item EXCLUDE_EXT + +Array of extension names to exclude when doing a static build. This +is ignored if INCLUDE_EXT is present. Consult INCLUDE_EXT for more +details. (e.g. [ qw( Socket POSIX ) ] ) + +This attribute may be most useful when specified as a string on the +commandline: perl Makefile.PL EXCLUDE_EXT='Socket Safe' + +=item EXE_FILES + +Ref to array of executable files. The files will be copied to the +INST_SCRIPT directory. Make realclean will delete them from there +again. + +=item NO_VC + +In general any generated Makefile checks for the current version of +MakeMaker and the version the Makefile was built under. If NO_VC is +set, the version check is neglected. Do not write this into your +Makefile.PL, use it interactively instead. + +=item FIRST_MAKEFILE + +The name of the Makefile to be produced. Defaults to the contents of +MAKEFILE, but can be overridden. This is used for the second Makefile +that will be produced for the MAP_TARGET. + +=item FULLPERL + +Perl binary able to run this extension. + +=item H + +Ref to array of *.h file names. Similar to C. + +=item INC + +Include file dirs eg: C<"-I/usr/5include -I/path/to/inc"> + +=item INCLUDE_EXT + +Array of extension names to be included when doing a static build. +MakeMaker will normally build with all of the installed extensions when +doing a static build, and that is usually the desired behavior. If +INCLUDE_EXT is present then MakeMaker will build only with those extensions +which are explicitly mentioned. (e.g. [ qw( Socket POSIX ) ]) + +It is not necessary to mention DynaLoader or the current extension when +filling in INCLUDE_EXT. If the INCLUDE_EXT is mentioned but is empty then +only DynaLoader and the current extension will be included in the build. + +This attribute may be most useful when specified as a string on the +commandline: perl Makefile.PL INCLUDE_EXT='POSIX Socket Devel::Peek' + +=item INSTALLARCHLIB + +Used by 'make install', which copies files from INST_ARCHLIB to this +directory if INSTALLDIRS is set to perl. + +=item INSTALLBIN + +Directory to install binary files (e.g. tkperl) into. + +=item INSTALLDIRS + +Determines which of the two sets of installation directories to +choose: installprivlib and installarchlib versus installsitelib and +installsitearch. The first pair is chosen with INSTALLDIRS=perl, the +second with INSTALLDIRS=site. Default is site. + +=item INSTALLMAN1DIR + +This directory gets the man pages at 'make install' time. Defaults to +$Config{installman1dir}. + +=item INSTALLMAN3DIR + +This directory gets the man pages at 'make install' time. Defaults to +$Config{installman3dir}. + +=item INSTALLPRIVLIB + +Used by 'make install', which copies files from INST_LIB to this +directory if INSTALLDIRS is set to perl. + +=item INSTALLSCRIPT + +Used by 'make install' which copies files from INST_SCRIPT to this +directory. + +=item INSTALLSITELIB + +Used by 'make install', which copies files from INST_LIB to this +directory if INSTALLDIRS is set to site (default). + +=item INSTALLSITEARCH + +Used by 'make install', which copies files from INST_ARCHLIB to this +directory if INSTALLDIRS is set to site (default). + +=item INST_ARCHLIB + +Same as INST_LIB for architecture dependent files. + +=item INST_BIN + +Directory to put real binary files during 'make'. These will be copied +to INSTALLBIN during 'make install' + +=item INST_EXE + +Old name for INST_SCRIPT. Deprecated. Please use INST_SCRIPT if you +need to use it. + +=item INST_LIB + +Directory where we put library files of this extension while building +it. + +=item INST_MAN1DIR + +Directory to hold the man pages at 'make' time + +=item INST_MAN3DIR + +Directory to hold the man pages at 'make' time + +=item INST_SCRIPT + +Directory, where executable files should be installed during +'make'. Defaults to "./blib/bin", just to have a dummy location during +testing. make install will copy the files in INST_SCRIPT to +INSTALLSCRIPT. + +=item LDFROM + +defaults to "$(OBJECT)" and is used in the ld command to specify +what files to link/load from (also see dynamic_lib below for how to +specify ld flags) + +=item LIBPERL_A + +The filename of the perllibrary that will be used together with this +extension. Defaults to libperl.a. + +=item LIBS + +An anonymous array of alternative library +specifications to be searched for (in order) until +at least one library is found. E.g. + + 'LIBS' => ["-lgdbm", "-ldbm -lfoo", "-L/path -ldbm.nfs"] + +Mind, that any element of the array +contains a complete set of arguments for the ld +command. So do not specify + + 'LIBS' => ["-ltcl", "-ltk", "-lX11"] + +See ODBM_File/Makefile.PL for an example, where an array is needed. If +you specify a scalar as in + + 'LIBS' => "-ltcl -ltk -lX11" + +MakeMaker will turn it into an array with one element. + +=item LINKTYPE + +'static' or 'dynamic' (default unless usedl=undef in +config.sh). Should only be used to force static linking (also see +linkext below). + +=item MAKEAPERL + +Boolean which tells MakeMaker, that it should include the rules to +make a perl. This is handled automatically as a switch by +MakeMaker. The user normally does not need it. + +=item MAKEFILE + +The name of the Makefile to be produced. + +=item MAN1PODS + +Hashref of pod-containing files. MakeMaker will default this to all +EXE_FILES files that include POD directives. The files listed +here will be converted to man pages and installed as was requested +at Configure time. + +=item MAN3PODS + +Hashref of .pm and .pod files. MakeMaker will default this to all + .pod and any .pm files that include POD directives. The files listed +here will be converted to man pages and installed as was requested +at Configure time. + +=item MAP_TARGET + +If it is intended, that a new perl binary be produced, this variable +may hold a name for that binary. Defaults to perl + +=item MYEXTLIB + +If the extension links to a library that it builds set this to the +name of the library (see SDBM_File) + +=item NAME + +Perl module name for this extension (DBD::Oracle). This will default +to the directory name but should be explicitly defined in the +Makefile.PL. + +=item NEEDS_LINKING + +MakeMaker will figure out, if an extension contains linkable code +anywhere down the directory tree, and will set this variable +accordingly, but you can speed it up a very little bit, if you define +this boolean variable yourself. + +=item NOECHO + +Defaults to C<@>. By setting it to an empty string you can generate a +Makefile that echos all commands. Mainly used in debugging MakeMaker +itself. + +=item NORECURS + +Boolean. Attribute to inhibit descending into subdirectories. + +=item OBJECT + +List of object files, defaults to '$(BASEEXT)$(OBJ_EXT)', but can be a long +string containing all object files, e.g. "tkpBind.o +tkpButton.o tkpCanvas.o" + +=item OPTIMIZE + +Defaults to C<-O>. Set it to C<-g> to turn debugging on. The flag is +passed to subdirectory makes. + +=item PERL + +Perl binary for tasks that can be done by miniperl + +=item PERLMAINCC + +The call to the program that is able to compile perlmain.c. Defaults +to $(CC). + +=item PERL_ARCHLIB + +Same as above for architecture dependent files + +=item PERL_LIB + +Directory containing the Perl library to use. + +=item PERL_SRC + +Directory containing the Perl source code (use of this should be +avoided, it may be undefined) + +=item PL_FILES + +Ref to hash of files to be processed as perl programs. MakeMaker +will default to any found *.PL file (except Makefile.PL) being keys +and the basename of the file being the value. E.g. + + {'foobar.PL' => 'foobar'} + +The *.PL files are expected to produce output to the target files +themselves. + +=item PM + +Hashref of .pm files and *.pl files to be installed. e.g. + + {'name_of_file.pm' => '$(INST_LIBDIR)/install_as.pm'} + +By default this will include *.pm and *.pl. If a lib directory +exists and is not listed in DIR (above) then any *.pm and *.pl files +it contains will also be included by default. Defining PM in the +Makefile.PL will override PMLIBDIRS. + +=item PMLIBDIRS + +Ref to array of subdirectories containing library files. Defaults to +[ 'lib', $(BASEEXT) ]. The directories will be scanned and any files +they contain will be installed in the corresponding location in the +library. A libscan() method can be used to alter the behaviour. +Defining PM in the Makefile.PL will override PMLIBDIRS. + +=item PREFIX + +Can be used to set the three INSTALL* attributes in one go (except for +probably INSTALLMAN1DIR, if it is not below PREFIX according to +%Config). They will have PREFIX as a common directory node and will +branch from that node into lib/, lib/ARCHNAME or whatever Configure +decided at the build time of your perl (unless you override one of +them, of course). + +=item PREREQ_PM + +Hashref: Names of modules that need to be available to run this +extension (e.g. Fcntl for SDBM_File) are the keys of the hash and the +desired version is the value. If the required version number is 0, we +only check if any version is installed already. + +=item SKIP + +Arryref. E.g. [qw(name1 name2)] skip (do not write) sections of the +Makefile. Caution! Do not use the SKIP attribute for the neglectible +speedup. It may seriously damage the resulting Makefile. Only use it, +if you really need it. + +=item TYPEMAPS + +Ref to array of typemap file names. Use this when the typemaps are +in some directory other than the current directory or when they are +not named B<typemap>. The last typemap in the list takes +precedence. A typemap in the current directory has highest +precedence, even if it isn't listed in TYPEMAPS. The default system +typemap has lowest precedence. + +=item VERSION + +Your version number for distributing the package. This defaults to +0.1. + +=item VERSION_FROM + +Instead of specifying the VERSION in the Makefile.PL you can let +MakeMaker parse a file to determine the version number. The parsing +routine requires that the file named by VERSION_FROM contains one +single line to compute the version number. The first line in the file +that contains the regular expression + + /(\$[\w:]*\bVERSION)\b.*=/ + +will be evaluated with eval() and the value of the named variable +B<after> the eval() will be assigned to the VERSION attribute of the +MakeMaker object. The following lines will be parsed o.k.: + + $VERSION = '1.00'; + ( $VERSION ) = '$Revision: 1.1 $ ' =~ /\$Revision:\s+([^\s]+)/; + $FOO::VERSION = '1.10'; + +but these will fail: + + my $VERSION = '1.01'; + local $VERSION = '1.02'; + local $FOO::VERSION = '1.30'; + +The file named in VERSION_FROM is added as a dependency to Makefile to +guarantee, that the Makefile contains the correct VERSION macro after +a change of the file. + +=item XS + +Hashref of .xs files. MakeMaker will default this. e.g. + + {'name_of_file.xs' => 'name_of_file.c'} + +The .c files will automatically be included in the list of files +deleted by a make clean. + +=item XSOPT + +String of options to pass to xsubpp. This might include C<-C++> or +C<-extern>. Do not include typemaps here; the TYPEMAP parameter exists for +that purpose. + +=item XSPROTOARG + +May be set to an empty string, which is identical to C<-prototypes>, or +C<-noprototypes>. See the xsubpp documentation for details. MakeMaker +defaults to the empty string. + +=item XS_VERSION + +Your version number for the .xs file of this package. This defaults +to the value of the VERSION attribute. + +=back + +=head2 Additional lowercase attributes + +can be used to pass parameters to the methods which implement that +part of the Makefile. + +=over 2 + +=item clean + + {FILES => "*.xyz foo"} + +=item depend + + {ANY_TARGET => ANY_DEPENDECY, ...} + +=item dist + + {TARFLAGS => 'cvfF', COMPRESS => 'gzip', SUFFIX => 'gz', + SHAR => 'shar -m', DIST_CP => 'ln', ZIP => '/bin/zip', + ZIPFLAGS => '-rl', DIST_DEFAULT => 'private tardist' } + +If you specify COMPRESS, then SUFFIX should also be altered, as it is +needed to tell make the target file of the compression. Setting +DIST_CP to ln can be useful, if you need to preserve the timestamps on +your files. DIST_CP can take the values 'cp', which copies the file, +'ln', which links the file, and 'best' which copies symbolic links and +links the rest. Default is 'best'. + +=item dynamic_lib + + {ARMAYBE => 'ar', OTHERLDFLAGS => '...', INST_DYNAMIC_DEP => '...'} + +=item installpm + +Deprecated as of MakeMaker 5.23. See L<ExtUtils::MM_Unix/pm_to_blib>. + +=item linkext + + {LINKTYPE => 'static', 'dynamic' or ''} + +NB: Extensions that have nothing but *.pm files had to say + + {LINKTYPE => ''} + +with Pre-5.0 MakeMakers. Since version 5.00 of MakeMaker such a line +can be deleted safely. MakeMaker recognizes, when there's nothing to +be linked. + +=item macro + + {ANY_MACRO => ANY_VALUE, ...} + +=item realclean + + {FILES => '$(INST_ARCHAUTODIR)/*.xyz'} + +=item tool_autosplit + + {MAXLEN =E<gt> 8} + +=back + +=cut + +# bug in pod2html, so leave the =back + +# Don't delete this cut, MM depends on it! + +=head2 Overriding MakeMaker Methods + +If you cannot achieve the desired Makefile behaviour by specifying +attributes you may define private subroutines in the Makefile.PL. +Each subroutines returns the text it wishes to have written to +the Makefile. To override a section of the Makefile you can +either say: + + sub MY::c_o { "new literal text" } + +or you can edit the default by saying something like: + + sub MY::c_o { + my($inherited) = shift->SUPER::c_o(@_); + $inherited =~ s/old text/new text/; + $inherited; + } + +If you running experiments with embedding perl as a library into other +applications, you might find MakeMaker not sufficient. You'd better +have a look at ExtUtils::embed which is a collection of utilities for +embedding. + +If you still need a different solution, try to develop another +subroutine, that fits your needs and submit the diffs to +F<perl5-porters@nicoh.com> or F<comp.lang.perl.misc> as appropriate. + +For a complete description of all MakeMaker methods see L<ExtUtils::MM_Unix>. + +Here is a simple example of how to add a new target to the generated +Makefile: + + sub MY::postamble { + ' + $(MYEXTLIB): sdbm/Makefile + cd sdbm && $(MAKE) all + '; + } + + +=head2 Hintsfile support + +MakeMaker.pm uses the architecture specific information from +Config.pm. In addition it evaluates architecture specific hints files +in a C<hints/> directory. The hints files are expected to be named +like their counterparts in C<PERL_SRC/hints>, but with an C<.pl> file +name extension (eg. C<next_3_2.pl>). They are simply C<eval>ed by +MakeMaker within the WriteMakefile() subroutine, and can be used to +execute commands as well as to include special variables. The rules +which hintsfile is chosen are the same as in Configure. + +The hintsfile is eval()ed immediately after the arguments given to +WriteMakefile are stuffed into a hash reference $self but before this +reference becomes blessed. So if you want to do the equivalent to +override or create an attribute you would say something like + + $self->{LIBS} = ['-ldbm -lucb -lc']; + +=head2 Distribution Support + +For authors of extensions MakeMaker provides several Makefile +targets. Most of the support comes from the ExtUtils::Manifest module, +where additional documentation can be found. + +=over 4 + +=item make distcheck + +reports which files are below the build directory but not in the +MANIFEST file and vice versa. (See ExtUtils::Manifest::fullcheck() for +details) + +=item make skipcheck + +reports which files are skipped due to the entries in the +C<MANIFEST.SKIP> file (See ExtUtils::Manifest::skipcheck() for +details) + +=item make distclean + +does a realclean first and then the distcheck. Note that this is not +needed to build a new distribution as long as you are sure, that the +MANIFEST file is ok. + +=item make manifest + +rewrites the MANIFEST file, adding all remaining files found (See +ExtUtils::Manifest::mkmanifest() for details) + +=item make distdir + +Copies all the files that are in the MANIFEST file to a newly created +directory with the name C<$(DISTNAME)-$(VERSION)>. If that directory +exists, it will be removed first. + +=item make disttest + +Makes a distdir first, and runs a C<perl Makefile.PL>, a make, and +a make test in that directory. + +=item make tardist + +First does a distdir. Then a command $(PREOP) which defaults to a null +command, followed by $(TOUNIX), which defaults to a null command under +UNIX, and will convert files in distribution directory to UNIX format +otherwise. Next it runs C<tar> on that directory into a tarfile and +deletes the directory. Finishes with a command $(POSTOP) which +defaults to a null command. + +=item make dist + +Defaults to $(DIST_DEFAULT) which in turn defaults to tardist. + +=item make uutardist + +Runs a tardist first and uuencodes the tarfile. + +=item make shdist + +First does a distdir. Then a command $(PREOP) which defaults to a null +command. Next it runs C<shar> on that directory into a sharfile and +deletes the intermediate directory again. Finishes with a command +$(POSTOP) which defaults to a null command. Note: For shdist to work +properly a C<shar> program that can handle directories is mandatory. + +=item make zipdist + +First does a distdir. Then a command $(PREOP) which defaults to a null +command. Runs C<$(ZIP) $(ZIPFLAGS)> on that directory into a +zipfile. Then deletes that directory. Finishes with a command +$(POSTOP) which defaults to a null command. + +=item make ci + +Does a $(CI) and a $(RCS_LABEL) on all files in the MANIFEST file. + +=back + +Customization of the dist targets can be done by specifying a hash +reference to the dist attribute of the WriteMakefile call. The +following parameters are recognized: + + CI ('ci -u') + COMPRESS ('compress') + POSTOP ('@ :') + PREOP ('@ :') + TO_UNIX (depends on the system) + RCS_LABEL ('rcs -q -Nv$(VERSION_SYM):') + SHAR ('shar') + SUFFIX ('Z') + TAR ('tar') + TARFLAGS ('cvf') + ZIP ('zip') + ZIPFLAGS ('-r') + +An example: + + WriteMakefile( 'dist' => { COMPRESS=>"gzip", SUFFIX=>"gz" }) + +=head1 SEE ALSO + +ExtUtils::MM_Unix, ExtUtils::Manifest, ExtUtils::testlib, +ExtUtils::Install, ExtUtils::embed + +=head1 AUTHORS + +Andy Dougherty F<E<lt>doughera@lafcol.lafayette.eduE<gt>>, Andreas +KE<ouml>nig F<E<lt>A.Koenig@franz.ww.TU-Berlin.DEE<gt>>, Tim Bunce +F<E<lt>Tim.Bunce@ig.co.ukE<gt>>. VMS support by Charles Bailey +F<E<lt>bailey@genetics.upenn.eduE<gt>>. OS/2 support by Ilya +Zakharevich F<E<lt>ilya@math.ohio-state.eduE<gt>>. Contact the +makemaker mailing list C<mailto:makemaker@franz.ww.tu-berlin.de>, if +you have any questions. + +=cut |