diff options
Diffstat (limited to 'Master/tlpkg/tlperl/lib/ExtUtils/MakeMaker.pm')
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/ExtUtils/MakeMaker.pm | 2807 |
1 files changed, 2807 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/ExtUtils/MakeMaker.pm b/Master/tlpkg/tlperl/lib/ExtUtils/MakeMaker.pm new file mode 100755 index 00000000000..4422b686ce7 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/ExtUtils/MakeMaker.pm @@ -0,0 +1,2807 @@ +# $Id$ +package ExtUtils::MakeMaker; + +use strict; + +BEGIN {require 5.006;} + +require Exporter; +use ExtUtils::MakeMaker::Config; +use Carp (); +use File::Path; + +our $Verbose = 0; # exported +our @Parent; # needs to be localized +our @Get_from_Config; # referenced by MM_Unix +our @MM_Sections; +our @Overridable; +my @Prepend_parent; +my %Recognized_Att_Keys; + +our $VERSION = '6.56'; + +# Emulate something resembling CVS $Revision$ +(our $Revision = $VERSION) =~ s{_}{}; +$Revision = int $Revision * 10000; + +our $Filename = __FILE__; # referenced outside MakeMaker + +our @ISA = qw(Exporter); +our @EXPORT = qw(&WriteMakefile &writeMakefile $Verbose &prompt); +our @EXPORT_OK = qw($VERSION &neatvalue &mkbootstrap &mksymlists + &WriteEmptyMakefile); + +# These will go away once the last of the Win32 & VMS specific code is +# purged. +my $Is_VMS = $^O eq 'VMS'; +my $Is_Win32 = $^O eq 'MSWin32'; + +full_setup(); + +require ExtUtils::MM; # Things like CPAN assume loading ExtUtils::MakeMaker + # will give them MM. + +require ExtUtils::MY; # XXX pre-5.8 versions of ExtUtils::Embed expect + # loading ExtUtils::MakeMaker will give them MY. + # This will go when Embed is its own CPAN module. + + +sub WriteMakefile { + Carp::croak "WriteMakefile: Need even number of args" if @_ % 2; + + require ExtUtils::MY; + my %att = @_; + + _verify_att(\%att); + + my $mm = MM->new(\%att); + $mm->flush; + + return $mm; +} + + +# Basic signatures of the attributes WriteMakefile takes. Each is the +# reference type. Empty value indicate it takes a non-reference +# scalar. +my %Att_Sigs; +my %Special_Sigs = ( + C => 'ARRAY', + CONFIG => 'ARRAY', + CONFIGURE => 'CODE', + DIR => 'ARRAY', + DL_FUNCS => 'HASH', + DL_VARS => 'ARRAY', + EXCLUDE_EXT => 'ARRAY', + EXE_FILES => 'ARRAY', + FUNCLIST => 'ARRAY', + H => 'ARRAY', + IMPORTS => 'HASH', + INCLUDE_EXT => 'ARRAY', + LIBS => ['ARRAY',''], + MAN1PODS => 'HASH', + MAN3PODS => 'HASH', + META_ADD => 'HASH', + META_MERGE => 'HASH', + PL_FILES => 'HASH', + PM => 'HASH', + PMLIBDIRS => 'ARRAY', + PMLIBPARENTDIRS => 'ARRAY', + PREREQ_PM => 'HASH', + BUILD_REQUIRES => 'HASH', + CONFIGURE_REQUIRES => 'HASH', + SKIP => 'ARRAY', + TYPEMAPS => 'ARRAY', + XS => 'HASH', + VERSION => ['version',''], + _KEEP_AFTER_FLUSH => '', + + clean => 'HASH', + depend => 'HASH', + dist => 'HASH', + dynamic_lib=> 'HASH', + linkext => 'HASH', + macro => 'HASH', + postamble => 'HASH', + realclean => 'HASH', + test => 'HASH', + tool_autosplit => 'HASH', +); + +@Att_Sigs{keys %Recognized_Att_Keys} = ('') x keys %Recognized_Att_Keys; +@Att_Sigs{keys %Special_Sigs} = values %Special_Sigs; + + +sub _verify_att { + my($att) = @_; + + while( my($key, $val) = each %$att ) { + my $sig = $Att_Sigs{$key}; + unless( defined $sig ) { + warn "WARNING: $key is not a known parameter.\n"; + next; + } + + my @sigs = ref $sig ? @$sig : $sig; + my $given = ref $val; + unless( grep { _is_of_type($val, $_) } @sigs ) { + my $takes = join " or ", map { _format_att($_) } @sigs; + + my $has = _format_att($given); + warn "WARNING: $key takes a $takes not a $has.\n". + " Please inform the author.\n"; + } + } +} + + +# Check if a given thing is a reference or instance of $type +sub _is_of_type { + my($thing, $type) = @_; + + return 1 if ref $thing eq $type; + + local $SIG{__DIE__}; + return 1 if eval{ $thing->isa($type) }; + + return 0; +} + + +sub _format_att { + my $given = shift; + + return $given eq '' ? "string/number" + : uc $given eq $given ? "$given reference" + : "$given object" + ; +} + + +sub prompt ($;$) { ## no critic + my($mess, $def) = @_; + Carp::confess("prompt function called without an argument") + unless defined $mess; + + my $isa_tty = -t STDIN && (-t STDOUT || !(-f STDOUT || -c STDOUT)) ; + + my $dispdef = defined $def ? "[$def] " : " "; + $def = defined $def ? $def : ""; + + local $|=1; + local $\; + print "$mess $dispdef"; + + my $ans; + if ($ENV{PERL_MM_USE_DEFAULT} || (!$isa_tty && eof STDIN)) { + print "$def\n"; + } + else { + $ans = <STDIN>; + if( defined $ans ) { + chomp $ans; + } + else { # user hit ctrl-D + print "\n"; + } + } + + return (!defined $ans || $ans eq '') ? $def : $ans; +} + +sub eval_in_subdirs { + my($self) = @_; + use Cwd qw(cwd abs_path); + my $pwd = cwd() || die "Can't figure out your cwd!"; + + local @INC = map eval {abs_path($_) if -e} || $_, @INC; + push @INC, '.'; # '.' has to always be at the end of @INC + + foreach my $dir (@{$self->{DIR}}){ + my($abs) = $self->catdir($pwd,$dir); + eval { $self->eval_in_x($abs); }; + last if $@; + } + chdir $pwd; + die $@ if $@; +} + +sub eval_in_x { + my($self,$dir) = @_; + chdir $dir or Carp::carp("Couldn't change to directory $dir: $!"); + + { + package main; + do './Makefile.PL'; + }; + if ($@) { +# if ($@ =~ /prerequisites/) { +# die "MakeMaker WARNING: $@"; +# } else { +# warn "WARNING from evaluation of $dir/Makefile.PL: $@"; +# } + die "ERROR from evaluation of $dir/Makefile.PL: $@"; + } +} + + +# package name for the classes into which the first object will be blessed +my $PACKNAME = 'PACK000'; + +sub full_setup { + $Verbose ||= 0; + + my @attrib_help = qw/ + + AUTHOR ABSTRACT ABSTRACT_FROM BINARY_LOCATION + C CAPI CCFLAGS CONFIG CONFIGURE DEFINE DIR DISTNAME DISTVNAME + DL_FUNCS DL_VARS + EXCLUDE_EXT EXE_FILES FIRST_MAKEFILE + FULLPERL FULLPERLRUN FULLPERLRUNINST + FUNCLIST H IMPORTS + + INST_ARCHLIB INST_SCRIPT INST_BIN INST_LIB INST_MAN1DIR INST_MAN3DIR + INSTALLDIRS + DESTDIR PREFIX INSTALL_BASE + PERLPREFIX SITEPREFIX VENDORPREFIX + INSTALLPRIVLIB INSTALLSITELIB INSTALLVENDORLIB + INSTALLARCHLIB INSTALLSITEARCH INSTALLVENDORARCH + INSTALLBIN INSTALLSITEBIN INSTALLVENDORBIN + INSTALLMAN1DIR INSTALLMAN3DIR + INSTALLSITEMAN1DIR INSTALLSITEMAN3DIR + INSTALLVENDORMAN1DIR INSTALLVENDORMAN3DIR + INSTALLSCRIPT INSTALLSITESCRIPT INSTALLVENDORSCRIPT + PERL_LIB PERL_ARCHLIB + SITELIBEXP SITEARCHEXP + + INC INCLUDE_EXT LDFROM LIB LIBPERL_A LIBS LICENSE + LINKTYPE MAKE MAKEAPERL MAKEFILE MAKEFILE_OLD MAN1PODS MAN3PODS MAP_TARGET + META_ADD META_MERGE MIN_PERL_VERSION BUILD_REQUIRES CONFIGURE_REQUIRES + MYEXTLIB NAME NEEDS_LINKING NOECHO NO_META NORECURS NO_VC OBJECT OPTIMIZE + PERL_MALLOC_OK PERL PERLMAINCC PERLRUN PERLRUNINST PERL_CORE + PERL_SRC PERM_DIR PERM_RW PERM_RWX + PL_FILES PM PM_FILTER PMLIBDIRS PMLIBPARENTDIRS POLLUTE PPM_INSTALL_EXEC + PPM_INSTALL_SCRIPT PREREQ_FATAL PREREQ_PM PREREQ_PRINT PRINT_PREREQ + SIGN SKIP TYPEMAPS VERSION VERSION_FROM XS XSOPT XSPROTOARG + XS_VERSION clean depend dist dynamic_lib linkext macro realclean + tool_autosplit + + MACPERL_SRC MACPERL_LIB MACLIBS_68K MACLIBS_PPC MACLIBS_SC MACLIBS_MRC + MACLIBS_ALL_68K MACLIBS_ALL_PPC MACLIBS_SHARED + /; + + # IMPORTS is used under OS/2 and Win32 + + # @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 platform_constants + tool_autosplit tool_xsubpp tools_other + + makemakerdflt + + dist macro depend cflags const_loadlibs const_cccmd + post_constants + + pasthru + + special_targets + c_o xs_c xs_o + top_targets blibdirs linkext dlsyms dynamic dynamic_bs + dynamic_lib static static_lib manifypods processPL + installbin subdirs + clean_subdirs clean realclean_subdirs realclean + metafile signature + dist_basics dist_core distdir dist_test dist_ci distmeta distsignature + install force perldepend makefile staticmake test ppd + + ); # loses section ordering + + @Overridable = @MM_Sections; + push @Overridable, qw[ + + libscan makeaperl needs_linking + subdir_x test_via_harness test_via_script + + init_VERSION init_dist init_INST init_INSTALL init_DEST init_dirscan + init_PM init_MANPODS init_xs init_PERL init_DIRFILESEP init_linker + ]; + + 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 exe_ext full_ar ld + lddlflags ldflags libc lib_ext obj_ext osname osvers ranlib + sitelibexp sitearchexp so + ); + + # 5.5.3 doesn't have any concept of vendor libs + push @Get_from_Config, qw( vendorarchexp vendorlibexp ) if $] >= 5.006; + + foreach my $item (@attrib_help){ + $Recognized_Att_Keys{$item} = 1; + } + foreach my $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_parent = qw( + INST_BIN INST_LIB INST_ARCHLIB INST_SCRIPT + MAP_TARGET INST_MAN1DIR INST_MAN3DIR PERL_SRC + PERL FULLPERL + ); +} + +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 new { + my($class,$self) = @_; + my($key); + + # Store the original args passed to WriteMakefile() + foreach my $k (keys %$self) { + $self->{ARGS}{$k} = $self->{$k}; + } + + $self = {} unless defined $self; + + $self->{PREREQ_PM} ||= {}; + $self->{BUILD_REQUIRES} ||= {}; + + # Temporarily bless it into MM so it can be used as an + # object. It will be blessed into a temp package later. + bless $self, "MM"; + + if ("@ARGV" =~ /\bPREREQ_PRINT\b/) { + $self->_PREREQ_PRINT; + } + + # PRINT_PREREQ is RedHatism. + if ("@ARGV" =~ /\bPRINT_PREREQ\b/) { + $self->_PRINT_PREREQ; + } + + print STDOUT "MakeMaker (v$VERSION)\n" if $Verbose; + if (-f "MANIFEST" && ! -f "Makefile"){ + check_manifest(); + } + + check_hints($self); + + # Translate X.Y.Z to X.00Y00Z + if( defined $self->{MIN_PERL_VERSION} ) { + $self->{MIN_PERL_VERSION} =~ s{ ^ (\d+) \. (\d+) \. (\d+) $ } + {sprintf "%d.%03d%03d", $1, $2, $3}ex; + } + + my $perl_version_ok = eval { + local $SIG{__WARN__} = sub { + # simulate "use warnings FATAL => 'all'" for vintage perls + die @_; + }; + !$self->{MIN_PERL_VERSION} or $self->{MIN_PERL_VERSION} <= $] + }; + if (!$perl_version_ok) { + if (!defined $perl_version_ok) { + warn <<'END'; +Warning: MIN_PERL_VERSION is not in a recognized format. +Recommended is a quoted numerical value like '5.005' or '5.008001'. +END + } + elsif ($self->{PREREQ_FATAL}) { + die sprintf <<"END", $self->{MIN_PERL_VERSION}, $]; +MakeMaker FATAL: perl version too low for this distribution. +Required is %s. We run %s. +END + } + else { + warn sprintf + "Warning: Perl version %s or higher required. We run %s.\n", + $self->{MIN_PERL_VERSION}, $]; + } + } + + my %configure_att; # record &{$self->{CONFIGURE}} attributes + my(%initial_att) = %$self; # record initial attributes + + my(%unsatisfied) = (); + my $prereqs = $self->_all_prereqs; + foreach my $prereq (sort keys %$prereqs) { + my $required_version = $prereqs->{$prereq}; + + my $installed_file = MM->_installed_file_for_module($prereq); + my $pr_version = 0; + $pr_version = MM->parse_version($installed_file) if $installed_file; + $pr_version = 0 if $pr_version eq 'undef'; + + # convert X.Y_Z alpha version #s to X.YZ for easier comparisons + $pr_version =~ s/(\d+)\.(\d+)_(\d+)/$1.$2$3/; + + if (!$installed_file) { + warn sprintf "Warning: prerequisite %s %s not found.\n", + $prereq, $required_version + unless $self->{PREREQ_FATAL}; + + $unsatisfied{$prereq} = 'not installed'; + } + elsif ($pr_version < $required_version ){ + warn sprintf "Warning: prerequisite %s %s not found. We have %s.\n", + $prereq, $required_version, ($pr_version || 'unknown version') + unless $self->{PREREQ_FATAL}; + + $unsatisfied{$prereq} = $required_version ? $required_version : 'unknown version' ; + } + } + + if (%unsatisfied && $self->{PREREQ_FATAL}){ + my $failedprereqs = join "\n", map {" $_ $unsatisfied{$_}"} + sort { $a cmp $b } keys %unsatisfied; + die <<"END"; +MakeMaker FATAL: prerequisites not found. +$failedprereqs + +Please install these modules first and rerun 'perl Makefile.PL'. +END + } + + if (defined $self->{CONFIGURE}) { + if (ref $self->{CONFIGURE} eq 'CODE') { + %configure_att = %{&{$self->{CONFIGURE}}}; + $self = { %$self, %configure_att }; + } 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 ){ + Carp::carp("WARNING: Please rerun 'perl Makefile.PL' to regenerate your Makefiles\n"); + } + + my $newclass = ++$PACKNAME; + local @Parent = @Parent; # Protect against non-local exits + { + print "Blessing Object into class [$newclass]\n" if $Verbose>=2; + mv_all_methods("MY",$newclass); + bless $self, $newclass; + push @Parent, $self; + require ExtUtils::MY; + + no strict 'refs'; ## no critic; + @{"$newclass\:\:ISA"} = 'MM'; + } + + if (defined $Parent[-2]){ + $self->{PARENT} = $Parent[-2]; + for my $key (@Prepend_parent) { + next unless defined $self->{PARENT}{$key}; + + # Don't stomp on WriteMakefile() args. + next if defined $self->{ARGS}{$key} and + $self->{ARGS}{$key} eq $self->{$key}; + + $self->{$key} = $self->{PARENT}{$key}; + + unless ($Is_VMS && $key =~ /PERL$/) { + $self->{$key} = $self->catdir("..",$self->{$key}) + unless $self->file_name_is_absolute($self->{$key}); + } else { + # PERL or FULLPERL will be a command verb or even a + # command with an argument instead of a full file + # specification under VMS. So, don't turn the command + # into a filespec, but do add a level to the path of + # the argument if not already absolute. + my @cmd = split /\s+/, $self->{$key}; + $cmd[1] = $self->catfile('[-]',$cmd[1]) + unless (@cmd < 2) || $self->file_name_is_absolute($cmd[1]); + $self->{$key} = join(' ', @cmd); + } + } + if ($self->{PARENT}) { + $self->{PARENT}->{CHILDREN}->{$newclass} = $self; + foreach my $opt (qw(POLLUTE PERL_CORE LINKTYPE)) { + if (exists $self->{PARENT}->{$opt} + and not exists $self->{$opt}) + { + # inherit, but only if already unspecified + $self->{$opt} = $self->{PARENT}->{$opt}; + } + } + } + my @fm = grep /^FIRST_MAKEFILE=/, @ARGV; + parse_args($self,@fm) if @fm; + } else { + parse_args($self,split(' ', $ENV{PERL_MM_OPT} || ''),@ARGV); + } + + + $self->{NAME} ||= $self->guess_name; + + ($self->{NAME_SYM} = $self->{NAME}) =~ s/\W+/_/g; + + $self->init_MAKE; + $self->init_main; + $self->init_VERSION; + $self->init_dist; + $self->init_INST; + $self->init_INSTALL; + $self->init_DEST; + $self->init_dirscan; + $self->init_PM; + $self->init_MANPODS; + $self->init_xs; + $self->init_PERL; + $self->init_DIRFILESEP; + $self->init_linker; + $self->init_ABSTRACT; + + $self->arch_check( + $INC{'Config.pm'}, + $self->catfile($Config{'archlibexp'}, "Config.pm") + ); + + $self->init_others(); + $self->init_platform(); + $self->init_PERM(); + my($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: $argv +# +END + + push @{$self->{RESULT}}, $self->_MakeMaker_Parameters_section(\%initial_att); + + if (defined $self->{CONFIGURE}) { + push @{$self->{RESULT}}, <<END; + +# MakeMaker 'CONFIGURE' Parameters: +END + if (scalar(keys %configure_att) > 0) { + foreach my $key (sort keys %configure_att){ + next if $key eq 'ARGS'; + my($v) = neatvalue($configure_att{$key}); + $v =~ s/(CODE|HASH|ARRAY|SCALAR)\([\dxa-f]+\)/$1\(...\)/; + $v =~ tr/\n/ /s; + push @{$self->{RESULT}}, "# $key => $v"; + } + } + else + { + push @{$self->{RESULT}}, "# no values returned"; + } + undef %configure_att; # free memory + } + + # turn the SKIP array into a SKIPHASH hash + for my $skip (@{$self->{SKIP} || []}) { + $self->{SKIPHASH}{$skip} = 1; + } + delete $self->{SKIP}; # free memory + + if ($self->{PARENT}) { + for (qw/install dist dist_basics dist_core distdir 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}}; + } + + foreach my $section ( @MM_Sections ){ + # Support for new foo_target() methods. + my $method = $section; + $method .= '_target' unless $self->can($method); + + 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->maketext_filter( + $self->$method( %a ) + ); + } + } + + push @{$self->{RESULT}}, "\n# End."; + + $self; +} + +sub WriteEmptyMakefile { + Carp::croak "WriteEmptyMakefile: Need an even number of args" if @_ % 2; + + my %att = @_; + my $self = MM->new(\%att); + + my $new = $self->{MAKEFILE}; + my $old = $self->{MAKEFILE_OLD}; + if (-f $old) { + _unlink($old) or warn "unlink $old: $!"; + } + if ( -f $new ) { + _rename($new, $old) or warn "rename $new => $old: $!" + } + open my $mfh, '>', $new or die "open $new for write: $!"; + print $mfh <<'EOP'; +all : + +clean : + +install : + +makemakerdflt : + +test : + +EOP + close $mfh or die "close $new for write: $!"; +} + + +=begin private + +=head3 _installed_file_for_module + + my $file = MM->_installed_file_for_module($module); + +Return the first installed .pm $file associated with the $module. The +one which will show up when you C<use $module>. + +$module is something like "strict" or "Test::More". + +=end private + +=cut + +sub _installed_file_for_module { + my $class = shift; + my $prereq = shift; + + my $file = "$prereq.pm"; + $file =~ s{::}{/}g; + + my $path; + for my $dir (@INC) { + my $tmp = File::Spec->catfile($dir, $file); + if ( -r $tmp ) { + $path = $tmp; + last; + } + } + + return $path; +} + + +# Extracted from MakeMaker->new so we can test it +sub _MakeMaker_Parameters_section { + my $self = shift; + my $att = shift; + + my @result = <<'END'; +# MakeMaker Parameters: +END + + foreach my $key (sort keys %$att){ + next if $key eq 'ARGS'; + my ($v) = neatvalue($att->{$key}); + if ($key eq 'PREREQ_PM') { + # CPAN.pm takes prereqs from this field in 'Makefile' + # and does not know about BUILD_REQUIRES + $v = neatvalue({ %{ $att->{PREREQ_PM} || {} }, %{ $att->{BUILD_REQUIRES} || {} } }); + } else { + $v = neatvalue($att->{$key}); + } + + $v =~ s/(CODE|HASH|ARRAY|SCALAR)\([\dxa-f]+\)/$1\(...\)/; + $v =~ tr/\n/ /s; + push @result, "# $key => $v"; + } + + return @result; +} + + +sub check_manifest { + print STDOUT "Checking if your kit is complete...\n"; + require ExtUtils::Manifest; + # avoid warning + $ExtUtils::Manifest::Quiet = $ExtUtils::Manifest::Quiet = 1; + my(@missed) = ExtUtils::Manifest::manicheck(); + if (@missed) { + print STDOUT "Warning: the following files are missing in your kit:\n"; + print "\t", join "\n\t", @missed; + print STDOUT "\n"; + print STDOUT "Please inform the author.\n"; + } else { + print STDOUT "Looks good\n"; + } +} + +sub parse_args{ + my($self, @args) = @_; + foreach (@args) { + unless (m/(.*?)=(.*)/) { + ++$Verbose if m/^verb/; + next; + } + my($name, $value) = ($1, $2); + if ($value =~ m/^~(\w+)?/) { # tilde with optional username + $value =~ s [^~(\w*)] + [$1 ? + ((getpwnam($1))[7] || "~$1") : + (getpwuid($>))[7] + ]ex; + } + + # Remember the original args passed it. It will be useful later. + $self->{ARGS}{uc $name} = $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}]; + } + + foreach my $mmkey (sort keys %$self){ + next if $mmkey eq 'ARGS'; + 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. + + require File::Spec; + my $curdir = File::Spec->curdir; + + my $hint_dir = File::Spec->catdir($curdir, "hints"); + return unless -d $hint_dir; + + # First we look for the best hintsfile we have + my($hint)="${^O}_$Config{osvers}"; + $hint =~ s/\./_/g; + $hint =~ s/_$//; + return unless $hint; + + # Also try without trailing minor version numbers. + while (1) { + last if -f File::Spec->catfile($hint_dir, "$hint.pl"); # found + } continue { + last unless $hint =~ s/_[^_]*$//; # nothing to cut off + } + my $hint_file = File::Spec->catfile($hint_dir, "$hint.pl"); + + return unless -f $hint_file; # really there + + _run_hintfile($self, $hint_file); +} + +sub _run_hintfile { + our $self; + local($self) = shift; # make $self available to the hint file. + my($hint_file) = shift; + + local($@, $!); + print STDERR "Processing hints file $hint_file\n"; + + # Just in case the ./ isn't on the hint file, which File::Spec can + # often strip off, we bung the curdir into @INC + local @INC = (File::Spec->curdir, @INC); + my $ret = do $hint_file; + if( !defined $ret ) { + my $error = $@ || $!; + print STDERR $error; + } +} + +sub mv_all_methods { + my($from,$to) = @_; + + # 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. + + local $SIG{__WARN__} = sub { + # can't use 'no warnings redefined', 5.6 only + warn @_ unless $_[0] =~ /^Subroutine .* redefined/ + }; + foreach my $method (@Overridable) { + + # We cannot say "next" here. Nick might call MY->makeaperl + # which isn't defined right now + + # Above statement was written at 4.23 time when Tk-b8 was + # around. As Tk-b9 only builds with 5.002something and MM 5 is + # standard, we try to enable the next line again. It was + # commented out until MM 5.23 + + next unless defined &{"${from}::$method"}; + + { + no strict 'refs'; ## no critic + *{"${to}::$method"} = \&{"${from}::$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: + + { + package MY; + my $super = "SUPER::".$method; + *{$method} = sub { + shift->$super(@_); + }; + } + } + } + + # 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 $finalname = $self->{MAKEFILE}; + print STDOUT "Writing $finalname for $self->{NAME}\n"; + + unlink($finalname, "MakeMaker.tmp", $Is_VMS ? 'Descrip.MMS' : ()); + open(my $fh,">", "MakeMaker.tmp") + or die "Unable to open MakeMaker.tmp: $!"; + + for my $chunk (@{$self->{RESULT}}) { + print $fh "$chunk\n"; + } + + close $fh; + _rename("MakeMaker.tmp", $finalname) or + warn "rename MakeMaker.tmp => $finalname: $!"; + chmod 0644, $finalname unless $Is_VMS; + + my %keep = map { ($_ => 1) } qw(NEEDS_LINKING HAS_LINK_CODE); + + if ($self->{PARENT} && !$self->{_KEEP_AFTER_FLUSH}) { + foreach (keys %$self) { # safe memory + delete $self->{$_} unless $keep{$_}; + } + } + + system("$Config::Config{eunicefix} $finalname") unless $Config::Config{eunicefix} eq ":"; +} + + +# This is a rename for OS's where the target must be unlinked first. +sub _rename { + my($src, $dest) = @_; + chmod 0666, $dest; + unlink $dest; + return rename $src, $dest; +} + +# This is an unlink for OS's where the target must be writable first. +sub _unlink { + my @files = @_; + chmod 0666, @files; + return unlink @files; +} + + +# The following mkbootstrap() is only for installations that are calling +# the pre-4.1 mkbootstrap() from their old Makefiles. This MakeMaker +# writes Makefiles, that use ExtUtils::Mkbootstrap directly. +sub mkbootstrap { + die <<END; +!!! Your Makefile has been built such a long time ago, !!! +!!! that is unlikely to work with current MakeMaker. !!! +!!! Please rebuild your Makefile !!! +END +} + +# Ditto for mksymlists() as of MakeMaker 5.17 +sub mksymlists { + die <<END; +!!! Your Makefile has been built such a long time ago, !!! +!!! that is unlikely to work with current MakeMaker. !!! +!!! Please rebuild your Makefile !!! +END +} + +sub neatvalue { + my($v) = @_; + return "undef" unless defined $v; + my($t) = ref $v; + return "q[$v]" unless $t; + if ($t eq 'ARRAY') { + my(@m, @neat); + push @m, "["; + foreach my $elem (@$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 my $key (sort keys %$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; +} + +1; + +__END__ + +=head1 NAME + +ExtUtils::MakeMaker - Create a module Makefile + +=head1 SYNOPSIS + + use ExtUtils::MakeMaker; + + WriteMakefile( ATTRIBUTE => VALUE [, ...] ); + +=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 + +See ExtUtils::MakeMaker::Tutorial. + +The long answer is the rest of the manpage :-) + +=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 INSTALL_BASE=~ + +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 F<test.pl> in the +current directory and if it exists it execute the script with the +proper set of perl C<-I> options. + +MakeMaker also checks for any files matching glob("t/*.t"). It will +execute all matching files in alphabetical order via the +L<Test::Harness> module with the C<-I> switches set correctly. + +If you'd like to see the raw output of your tests, set the +C<TEST_VERBOSE> variable to true. + + make test TEST_VERBOSE=1 + +=head2 make testdb + +A useful variation of the above is the target C<testdb>. It runs the +test under the Perl debugger (see L<perldebug>). If the file +F<test.pl> exists in the current directory, it is used for the test. + +If you want to debug some other testfile, set the C<TEST_FILE> variable +thusly: + + make testdb TEST_FILE=t/mytest.t + +By default the debugger is called using C<-d> option to perl. If you +want to specify some other option, set the C<TESTDB_SW> variable: + + make testdb TESTDB_SW=-Dx + +=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 vendor + + PERLPREFIX SITEPREFIX VENDORPREFIX + INST_ARCHLIB INSTALLARCHLIB INSTALLSITEARCH INSTALLVENDORARCH + INST_LIB INSTALLPRIVLIB INSTALLSITELIB INSTALLVENDORLIB + INST_BIN INSTALLBIN INSTALLSITEBIN INSTALLVENDORBIN + INST_SCRIPT INSTALLSCRIPT INSTALLSITESCRIPT INSTALLVENDORSCRIPT + INST_MAN1DIR INSTALLMAN1DIR INSTALLSITEMAN1DIR INSTALLVENDORMAN1DIR + INST_MAN3DIR INSTALLMAN3DIR INSTALLSITEMAN3DIR INSTALLVENDORMAN3DIR + +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 '-V:install.*' + +And to check the sequence in which the library directories are +searched by perl, run + + perl -le 'print join $/, @INC' + +Sometimes older versions of the module you're installing live in other +directories in @INC. Because Perl loads the first version of a module it +finds, not the newest, you might accidentally get one of these older +versions even after installing a brand new version. To delete I<all other +versions of the module you're installing> (not simply older ones) set the +C<UNINST> variable. + + make install UNINST=1 + + +=head2 INSTALL_BASE + +INSTALL_BASE can be passed into Makefile.PL to change where your +module will be installed. INSTALL_BASE is more like what everyone +else calls "prefix" than PREFIX is. + +To have everything installed in your home directory, do the following. + + # Unix users, INSTALL_BASE=~ works fine + perl Makefile.PL INSTALL_BASE=/path/to/your/home/dir + +Like PREFIX, it sets several INSTALL* attributes at once. Unlike +PREFIX it is easy to predict where the module will end up. The +installation pattern looks like this: + + INSTALLARCHLIB INSTALL_BASE/lib/perl5/$Config{archname} + INSTALLPRIVLIB INSTALL_BASE/lib/perl5 + INSTALLBIN INSTALL_BASE/bin + INSTALLSCRIPT INSTALL_BASE/bin + INSTALLMAN1DIR INSTALL_BASE/man/man1 + INSTALLMAN3DIR INSTALL_BASE/man/man3 + +INSTALL_BASE in MakeMaker and C<--install_base> in Module::Build (as +of 0.28) install to the same location. If you want MakeMaker and +Module::Build to install to the same location simply set INSTALL_BASE +and C<--install_base> to the same location. + +INSTALL_BASE was added in 6.31. + + +=head2 PREFIX and LIB attribute + +PREFIX and LIB can be used to set several INSTALL* attributes in one +go. Here's an example for installing into your home directory. + + # Unix users, PREFIX=~ works fine + perl Makefile.PL PREFIX=/path/to/your/home/dir + +This will install all files in the module under your home directory, +with man pages and libraries going into an appropriate place (usually +~/man and ~/lib). How the exact location is determined is complicated +and depends on how your Perl was configured. INSTALL_BASE works more +like what other build systems call "prefix" than PREFIX and we +recommend you use that instead. + +Another way to specify many INSTALL directories with a single +parameter is LIB. + + perl Makefile.PL LIB=~/lib + +This will install the module's architecture-independent files into +~/lib, the architecture-dependent files into ~/lib/$archname. + +Note, that in both cases the tilde expansion is done by MakeMaker, not +by perl by default, nor by make. + +Conflicts between parameters LIB, PREFIX and the various INSTALL* +arguments are resolved so that: + +=over 4 + +=item * + +setting LIB overrides any setting of INSTALLPRIVLIB, INSTALLARCHLIB, +INSTALLSITELIB, INSTALLSITEARCH (and they are not affected by PREFIX); + +=item * + +without LIB, setting PREFIX replaces the initial C<$Config{prefix}> +part of those INSTALL* arguments, even if the latter are explicitly +set (but are set to still start with C<$Config{prefix}>). + +=back + +If the user has superuser privileges, and is not working on AFS or +relatives, then the defaults for INSTALLPRIVLIB, INSTALLARCHLIB, +INSTALLSCRIPT, etc. will be appropriate, and this incantation will be +the best: + + perl Makefile.PL; + make; + make test + make install + +make install per default writes some documentation of what has been +done into the file C<$(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 = $archlibexp + INST_LIB = ./blib/lib + INST_ARCHLIB = ./blib/arch + +If perl has not yet been installed then PERL_SRC can be defined on the +command line as shown in the previous section. + + +=head2 Which architecture dependent directory? + +If you don't want to keep the defaults for the INSTALL* macros, +MakeMaker helps you to minimize the typing needed: the usual +relationship between INSTALLPRIVLIB and INSTALLARCHLIB is determined +by Configure at perl compilation time. MakeMaker supports the user who +sets INSTALLPRIVLIB. If INSTALLPRIVLIB is set, but INSTALLARCHLIB not, +then MakeMaker defaults the latter to be the same subdirectory of +INSTALLPRIVLIB as Configure decided for the counterparts in %Config , +otherwise it defaults to INSTALLPRIVLIB. The same relationship holds +for INSTALLSITELIB and INSTALLSITEARCH. + +MakeMaker gives you much more freedom than needed to configure +internal variables and get different results. It is worth to mention, +that make(1) also lets you configure most of the variables that are +used in the Makefile. But in the majority of situations this will not +be necessary, and should only be done if the author of a package +recommends it (or you know what you're doing). + +=head2 Using Attributes and Parameters + +The following attributes may be specified as arguments to WriteMakefile() +or as NAME=VALUE pairs on the command line. + +=over 2 + +=item ABSTRACT + +One line description of the module. Will be included in PPD file. + +=item ABSTRACT_FROM + +Name of the file that contains the package description. MakeMaker looks +for a line in the POD matching /^($package\s-\s)(.*)/. This is typically +the first line in the "=head1 NAME" section. $2 becomes the abstract. + +=item AUTHOR + +String containing name (and email address) of package author(s). Is used +in PPD (Perl Package Description) files for PPM (Perl Package Manager). + +=item BINARY_LOCATION + +Used when creating PPD files for binary packages. It can be set to a +full or relative path or URL to the binary archive for a particular +architecture. For example: + + perl Makefile.PL BINARY_LOCATION=x86/Agent.tar.gz + +builds a PPD package that references a binary of the C<Agent> package, +located in the C<x86> directory relative to the PPD itself. + +=item BUILD_REQUIRES + +A hash of modules that are needed to build your module but not run it. + +This will go into the C<build_requires> field of your F<META.yml>. + +The format is the same as PREREQ_PM. + +=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 CCFLAGS + +String that will be included in the compiler call command line between +the arguments INC and OPTIMIZE. + +=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 =E<gt> ...}, that have to +be determined by some evaluation method. + +=item CONFIGURE_REQUIRES + +A hash of modules that are required to run Makefile.PL itself, but not +to run your distribution. + +This will go into the C<configure_requires> field of your F<META.yml>. + +Defaults to C<<< { "ExtUtils::MakeMaker" => 0 } >>> + +The format is the same as PREREQ_PM. + +=item DEFINE + +Something like C<"-DHAVE_UNISTD_H"> + +=item DESTDIR + +This is the root directory into which the code will be installed. It +I<prepends itself to the normal prefix>. For example, if your code +would normally go into F</usr/local/lib/perl> you could set DESTDIR=~/tmp/ +and installation would go into F<~/tmp/usr/local/lib/perl>. + +This is primarily of use for people who repackage Perl modules. + +NOTE: Due to the nature of make, it is important that you put the trailing +slash on your DESTDIR. F<~/tmp/> not F<~/tmp>. + +=item DIR + +Ref to array of subdirectories containing Makefile.PLs e.g. ['sdbm'] +in ext/SDBM_File + +=item DISTNAME + +A safe filename for the package. + +Defaults to NAME above but with :: replaced with -. + +For example, Foo::Bar becomes Foo-Bar. + +=item DISTVNAME + +Your name for distributing the package with the version number +included. This is used by 'make dist' to name the resulting archive +file. + +Defaults to DISTNAME-VERSION. + +For example, version 1.04 of Foo::Bar becomes Foo-Bar-1.04. + +On some OS's where . has special meaning VERSION_SYM may be used in +place of VERSION. + +=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, OS/2, +VMS and Win32 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'] } + +Please see the L<ExtUtils::Mksymlists> documentation for more information +about the DL_FUNCS, DL_VARS and FUNCLIST attributes. + +=item DL_VARS + +Array of symbol names for variables to be made available as universal symbols. +Used only under AIX, OS/2, VMS and Win32 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 +command line: 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. + +If your executables start with something like #!perl or +#!/usr/bin/perl MakeMaker will change this to the path of the perl +'Makefile.PL' was invoked with so the programs will be sure to run +properly even if perl is not in /usr/bin/perl. + +=item FIRST_MAKEFILE + +The name of the Makefile to be produced. This is used for the second +Makefile that will be produced for the MAP_TARGET. + +Defaults to 'Makefile' or 'Descrip.MMS' on VMS. + +(Note: we couldn't use MAKEFILE because dmake uses this for something +else). + +=item FULLPERL + +Perl binary able to run this extension, load XS modules, etc... + +=item FULLPERLRUN + +Like PERLRUN, except it uses FULLPERL. + +=item FULLPERLRUNINST + +Like PERLRUNINST, except it uses FULLPERL. + +=item FUNCLIST + +This provides an alternate means to specify function names to be +exported from the extension. Its value is a reference to an +array of function names to be exported by the extension. These +names are passed through unaltered to the linker options file. + +=item H + +Ref to array of *.h file names. Similar to C. + +=item IMPORTS + +This attribute is used to specify names to be imported into the +extension. Takes a hash ref. + +It is only used on OS/2 and Win32. + +=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 +command line: 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 if +INSTALLDIRS=perl. + +=item INSTALLDIRS + +Determines which of the sets of installation directories to choose: +perl, site or vendor. Defaults to site. + +=item INSTALLMAN1DIR + +=item INSTALLMAN3DIR + +These directories get the man pages at 'make install' time if +INSTALLDIRS=perl. Defaults to $Config{installman*dir}. + +If set to 'none', no man pages will be installed. + +=item INSTALLPRIVLIB + +Used by 'make install', which copies files from INST_LIB to this +directory if INSTALLDIRS is set to perl. + +Defaults to $Config{installprivlib}. + +=item INSTALLSCRIPT + +Used by 'make install' which copies files from INST_SCRIPT to this +directory if INSTALLDIRS=perl. + +=item INSTALLSITEARCH + +Used by 'make install', which copies files from INST_ARCHLIB to this +directory if INSTALLDIRS is set to site (default). + +=item INSTALLSITEBIN + +Used by 'make install', which copies files from INST_BIN to this +directory if INSTALLDIRS is set to site (default). + +=item INSTALLSITELIB + +Used by 'make install', which copies files from INST_LIB to this +directory if INSTALLDIRS is set to site (default). + +=item INSTALLSITEMAN1DIR + +=item INSTALLSITEMAN3DIR + +These directories get the man pages at 'make install' time if +INSTALLDIRS=site (default). Defaults to +$(SITEPREFIX)/man/man$(MAN*EXT). + +If set to 'none', no man pages will be installed. + +=item INSTALLSITESCRIPT + +Used by 'make install' which copies files from INST_SCRIPT to this +directory if INSTALLDIRS is set to site (default). + +=item INSTALLVENDORARCH + +Used by 'make install', which copies files from INST_ARCHLIB to this +directory if INSTALLDIRS is set to vendor. + +=item INSTALLVENDORBIN + +Used by 'make install', which copies files from INST_BIN to this +directory if INSTALLDIRS is set to vendor. + +=item INSTALLVENDORLIB + +Used by 'make install', which copies files from INST_LIB to this +directory if INSTALLDIRS is set to vendor. + +=item INSTALLVENDORMAN1DIR + +=item INSTALLVENDORMAN3DIR + +These directories get the man pages at 'make install' time if +INSTALLDIRS=vendor. Defaults to $(VENDORPREFIX)/man/man$(MAN*EXT). + +If set to 'none', no man pages will be installed. + +=item INSTALLVENDORSCRIPT + +Used by 'make install' which copies files from INST_SCRIPT to this +directory if INSTALLDIRS is set to vendor. + +=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_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/script", just to have a dummy location during +testing. make install will copy the files in INST_SCRIPT to +INSTALLSCRIPT. + +=item LD + +Program to be used to link libraries for dynamic loading. + +Defaults to $Config{ld}. + +=item LDDLFLAGS + +Any special flags that might need to be passed to ld to create a +shared library suitable for dynamic loading. It is up to the makefile +to use it. (See L<Config/lddlflags>) + +Defaults to $Config{lddlflags}. + +=item LDFROM + +Defaults to "$(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 LIB + +LIB should only be set at C<perl Makefile.PL> time but is allowed as a +MakeMaker argument. It has the effect of setting both INSTALLPRIVLIB +and INSTALLSITELIB to that value regardless any explicit setting of +those arguments (or of PREFIX). INSTALLARCHLIB and INSTALLSITEARCH +are set to the corresponding architecture subdirectory. + +=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 LICENSE + +The licensing terms of your distribution. Generally its "perl" for the +same license as Perl itself. + +See L<Module::Build::API> for the list of options. + +Defaults to "unknown". + +=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 MAKE + +Variant of make you intend to run the generated Makefile with. This +parameter lets Makefile.PL know what make quirks to account for when +generating the Makefile. + +MakeMaker also honors the MAKE environment variable. This parameter +takes precedent. + +Currently the only significant values are 'dmake' and 'nmake' for Windows +users. + +Defaults to $Config{make}. + +=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_OLD + +When 'make clean' or similar is run, the $(FIRST_MAKEFILE) will be +backed up at this location. + +Defaults to $(FIRST_MAKEFILE).old or $(FIRST_MAKEFILE)_old on VMS. + +=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. + +This hash should map POD files (or scripts containing POD) to the +man file names under the C<blib/man1/> directory, as in the following +example: + + MAN1PODS => { + 'doc/command.pod' => 'blib/man1/command.1', + 'scripts/script.pl' => 'blib/man1/script.1', + } + +=item MAN3PODS + +Hashref that assigns to *.pm and *.pod files the files into which the +manpages are to be written. MakeMaker parses all *.pod and *.pm files +for POD directives. Files that contain POD will be the default keys of +the MAN3PODS hashref. These will then be converted to man pages during +C<make> and will be installed during C<make install>. + +Example similar to MAN1PODS. + +=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 META_ADD + +=item META_MERGE + +A hashrefs of items to add to the F<META.yml>. + +They differ in how they behave if they have the same key as the +default metadata. META_ADD will override the default value with it's +own. META_MERGE will merge its value with the default. + +Unless you want to override the defaults, prefer META_MERGE so as to +get the advantage of any future defaults. + +=item MIN_PERL_VERSION + +The minimum required version of Perl for this distribution. + +Either 5.006001 or 5.6.1 format is acceptable. + +=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 + +Command so make does not print the literal commands its running. + +By setting it to an empty string you can generate a Makefile that +prints all commands. Mainly used in debugging MakeMaker itself. + +Defaults to C<@>. + +=item NORECURS + +Boolean. Attribute to inhibit descending into subdirectories. + +=item NO_META + +When true, suppresses the generation and addition to the MANIFEST of +the META.yml module meta-data file during 'make distdir'. + +Defaults to false. + +=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 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" + +(Where BASEEXT is the last component of NAME, and OBJ_EXT is $Config{obj_ext}.) + +=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 PERL_CORE + +Set only when MakeMaker is building the extensions of the Perl core +distribution. + +=item PERLMAINCC + +The call to the program that is able to compile perlmain.c. Defaults +to $(CC). + +=item PERL_ARCHLIB + +Same as for PERL_LIB, but for architecture dependent files. + +Used only when MakeMaker is building the extensions of the Perl core +distribution (because normally $(PERL_ARCHLIB) is automatically in @INC, +and adding it would get in the way of PERL5LIB). + +=item PERL_LIB + +Directory containing the Perl library to use. + +Used only when MakeMaker is building the extensions of the Perl core +distribution (because normally $(PERL_LIB) is automatically in @INC, +and adding it would get in the way of PERL5LIB). + +=item PERL_MALLOC_OK + +defaults to 0. Should be set to TRUE if the extension can work with +the memory allocation routines substituted by the Perl malloc() subsystem. +This should be applicable to most extensions with exceptions of those + +=over 4 + +=item * + +with bugs in memory allocations which are caught by Perl's malloc(); + +=item * + +which interact with the memory allocator in other ways than via +malloc(), realloc(), free(), calloc(), sbrk() and brk(); + +=item * + +which rely on special alignment which is not provided by Perl's malloc(). + +=back + +B<NOTE.> Negligence to set this flag in I<any one> of loaded extension +nullifies many advantages of Perl's malloc(), such as better usage of +system resources, error detection, memory usage reporting, catchable failure +of memory allocations, etc. + +=item PERLPREFIX + +Directory under which core modules are to be installed. + +Defaults to $Config{installprefixexp} falling back to +$Config{installprefix}, $Config{prefixexp} or $Config{prefix} should +$Config{installprefixexp} not exist. + +Overridden by PREFIX. + +=item PERLRUN + +Use this instead of $(PERL) when you wish to run perl. It will set up +extra necessary flags for you. + +=item PERLRUNINST + +Use this instead of $(PERL) when you wish to run perl to work with +modules. It will add things like -I$(INST_ARCH) and other necessary +flags so perl can see the modules you're about to install. + +=item PERL_SRC + +Directory containing the Perl source code (use of this should be +avoided, it may be undefined) + +=item PERM_DIR + +Desired permission for directories. Defaults to C<755>. + +=item PERM_RW + +Desired permission for read/writable files. Defaults to C<644>. + +=item PERM_RWX + +Desired permission for executable files. Defaults to C<755>. + +=item PL_FILES + +MakeMaker can run programs to generate files for you at build time. +By default any file named *.PL (except Makefile.PL and Build.PL) in +the top level directory will be assumed to be a Perl program and run +passing its own basename in as an argument. For example... + + perl foo.PL foo + +This behavior can be overridden by supplying your own set of files to +search. PL_FILES accepts a hash ref, the key being the file to run +and the value is passed in as the first argument when the PL file is run. + + PL_FILES => {'bin/foobar.PL' => 'bin/foobar'} + +Would run bin/foobar.PL like this: + + perl bin/foobar.PL bin/foobar + +If multiple files from one program are desired an array ref can be used. + + PL_FILES => {'bin/foobar.PL' => [qw(bin/foobar1 bin/foobar2)]} + +In this case the program will be run multiple times using each target file. + + perl bin/foobar.PL bin/foobar1 + perl bin/foobar.PL bin/foobar2 + +PL files are normally run B<after> pm_to_blib and include INST_LIB and +INST_ARCH in its C<@INC> so the just built modules can be +accessed... unless the PL file is making a module (or anything else in +PM) in which case it is run B<before> pm_to_blib and does not include +INST_LIB and INST_ARCH in its C<@INC>. This apparently odd behavior +is there for backwards compatibility (and its somewhat DWIM). + + +=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 and the files found in +the PMLIBDIRS directories. 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 I<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. + +(Where BASEEXT is the last component of NAME.) + +=item PM_FILTER + +A filter program, in the traditional Unix sense (input from stdin, output +to stdout) that is passed on each .pm file during the build (in the +pm_to_blib() phase). It is empty by default, meaning no filtering is done. + +Great care is necessary when defining the command if quoting needs to be +done. For instance, you would need to say: + + {'PM_FILTER' => 'grep -v \\"^\\#\\"'} + +to remove all the leading comments on the fly during the build. The +extra \\ are necessary, unfortunately, because this variable is interpolated +within the context of a Perl program built on the command line, and double +quotes are what is used with the -e switch to build that command line. The +# is escaped for the Makefile, since what is going to be generated will then +be: + + PM_FILTER = grep -v \"^\#\" + +Without the \\ before the #, we'd have the start of a Makefile comment, +and the macro would be incorrectly defined. + +=item POLLUTE + +Release 5.005 grandfathered old global symbol names by providing preprocessor +macros for extension source compatibility. As of release 5.6, these +preprocessor definitions are not available by default. The POLLUTE flag +specifies that the old names should still be defined: + + perl Makefile.PL POLLUTE=1 + +Please inform the module author if this is necessary to successfully install +a module under 5.6 or later. + +=item PPM_INSTALL_EXEC + +Name of the executable used to run C<PPM_INSTALL_SCRIPT> below. (e.g. perl) + +=item PPM_INSTALL_SCRIPT + +Name of the script that gets executed by the Perl Package Manager after +the installation of a package. + +=item PREFIX + +This overrides all the default install locations. Man pages, +libraries, scripts, etc... MakeMaker will try to make an educated +guess about where to place things under the new PREFIX based on your +Config defaults. Failing that, it will fall back to a structure +which should be sensible for your platform. + +If you specify LIB or any INSTALL* variables they will not be effected +by the PREFIX. + +=item PREREQ_FATAL + +Bool. If this parameter is true, failing to have the required modules +(or the right versions thereof) will be fatal. C<perl Makefile.PL> +will C<die> instead of simply informing the user of the missing dependencies. + +It is I<extremely> rare to have to use C<PREREQ_FATAL>. Its use by module +authors is I<strongly discouraged> and should never be used lightly. +Module installation tools have ways of resolving umet dependencies but +to do that they need a F<Makefile>. Using C<PREREQ_FATAL> breaks this. +That's bad. + +The only situation where it is appropriate is when you have +dependencies that are indispensible to actually I<write> a +F<Makefile>. For example, MakeMaker's F<Makefile.PL> needs L<File::Spec>. +If its not available it cannot write the F<Makefile>. + +Note: see L<Test::Harness> for a shortcut for stopping tests early +if you are missing dependencies and are afraid that users might +use your module with an incomplete environment. + +=item PREREQ_PM + +A hash of modules that are needed to run your module. The keys are +the module names ie. Test::More, and the minimum version is the +value. If the required version number is 0 any version will do. + +This will go into the C<requires> field of your F<META.yml>. + + PREREQ_PM => { + # Require Test::More at least 0.47 + "Test::More" => "0.47", + + # Require any version of Acme::Buffy + "Acme::Buffy" => 0, + } + +=item PREREQ_PRINT + +Bool. If this parameter is true, the prerequisites will be printed to +stdout and MakeMaker will exit. The output format is an evalable hash +ref. + + $PREREQ_PM = { + 'A::B' => Vers1, + 'C::D' => Vers2, + ... + }; + +If a distribution defines a minimal required perl version, this is +added to the output as an additional line of the form: + + $MIN_PERL_VERSION = '5.008001'; + +If BUILD_REQUIRES is not empty, it will be dumped as $BUILD_REQUIRES hasref. + +=item PRINT_PREREQ + +RedHatism for C<PREREQ_PRINT>. The output format is different, though: + + perl(A::B)>=Vers1 perl(C::D)>=Vers2 ... + +A minimal required perl version, if present, will look like this: + + perl(perl)>=5.008001 + +=item SITEPREFIX + +Like PERLPREFIX, but only for the site install locations. + +Defaults to $Config{siteprefixexp}. Perls prior to 5.6.0 didn't have +an explicit siteprefix in the Config. In those cases +$Config{installprefix} will be used. + +Overridable by PREFIX + +=item SIGN + +When true, perform the generation and addition to the MANIFEST of the +SIGNATURE file in the distdir during 'make distdir', via 'cpansign +-s'. + +Note that you need to install the Module::Signature module to +perform this operation. + +Defaults to false. + +=item SKIP + +Arrayref. E.g. [qw(name1 name2)] skip (do not write) sections of the +Makefile. Caution! Do not use the SKIP attribute for the negligible +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 VENDORPREFIX + +Like PERLPREFIX, but only for the vendor install locations. + +Defaults to $Config{vendorprefixexp}. + +Overridable by PREFIX + +=item VERBINST + +If true, make install will be verbose + +=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 something like a $VERSION assignment or C<package Name +VERSION> will be used. The following lines will be parsed o.k.: + + # Good + package Foo::Bar 1.23; # 1.23 + $VERSION = '1.00'; # 1.00 + *VERSION = \'1.01'; # 1.01 + ($VERSION) = q$Revision$ =~ /(\d+)/g; # The digits in $Revision$ + $FOO::VERSION = '1.10'; # 1.10 + *FOO::VERSION = \'1.11'; # 1.11 + +but these will fail: + + # Bad + my $VERSION = '1.01'; + local $VERSION = '1.02'; + local $FOO::VERSION = '1.30'; + +"Version strings" are incompatible should not be used. + + # Bad + $VERSION = 1.2.3; + $VERSION = v1.2.3; + +L<version> objects are fine. As of MakeMaker 6.35 version.pm will be +automatically loaded, but you must declare the dependency on version.pm. +For compatibility with older MakeMaker you should load on the same line +as $VERSION is declared. + + # All on one line + use version; our $VERSION = qv(1.2.3); + +(Putting C<my> or C<local> on the preceding line will work o.k.) + +The file named in VERSION_FROM is not added as a dependency to +Makefile. This is not really correct, but it would be a major pain +during development to have to rewrite the Makefile for any smallish +change in that file. If you want to make sure that the Makefile +contains the correct VERSION macro after any change of the file, you +would have to do something like + + depend => { Makefile => '$(VERSION_FROM)' } + +See attribute C<depend> below. + +=item VERSION_SYM + +A sanitized VERSION with . replaced by _. For places where . has +special meaning (some filesystems, RCS labels, etc...) + +=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. Parameters are specified as a hash ref but are +passed to the method as a hash. + +=over 2 + +=item clean + + {FILES => "*.xyz foo"} + +=item depend + + {ANY_TARGET => ANY_DEPENDENCY, ...} + +(ANY_TARGET must not be given a double-colon rule by MakeMaker.) + +=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 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 postamble + +Anything put here will be passed to MY::postamble() if you have one. + +=item realclean + + {FILES => '$(INST_ARCHAUTODIR)/*.xyz'} + +=item test + + {TESTS => 't/*.t'} + +=item tool_autosplit + + {MAXLEN => 8} + +=back + +=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 subroutine 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: + + package MY; # so that "SUPER" works right + sub c_o { + my $inherited = shift->SUPER::c_o(@_); + $inherited =~ s/old text/new text/; + $inherited; + } + +If you are running experiments with embedding perl as a library into +other applications, you might find MakeMaker is 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 +C<makemaker@perl.org> + +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 { + return <<'MAKE_FRAG'; + $(MYEXTLIB): sdbm/Makefile + cd sdbm && $(MAKE) all + + MAKE_FRAG + } + +=head2 The End Of Cargo Cult Programming + +WriteMakefile() now does some basic sanity checks on its parameters to +protect against typos and malformatted values. This means some things +which happened to work in the past will now throw warnings and +possibly produce internal errors. + +Some of the most common mistakes: + +=over 2 + +=item C<< MAN3PODS => ' ' >> + +This is commonly used to suppress the creation of man pages. MAN3PODS +takes a hash ref not a string, but the above worked by accident in old +versions of MakeMaker. + +The correct code is C<< MAN3PODS => { } >>. + +=back + + +=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. + +Additionally, it will create a META.yml module meta-data file in the +distdir and add this to the distdir's MANIFEST. You can shut this +behavior off with the NO_META flag. + +=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 $(TO_UNIX), 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 $(RCS_LABEL) on all files in the MANIFEST file. + +=back + +Customization of the dist targets can be done by specifying a hash +reference to the dist attribute of the WriteMakefile call. The +following parameters are recognized: + + CI ('ci -u') + COMPRESS ('gzip --best') + POSTOP ('@ :') + PREOP ('@ :') + TO_UNIX (depends on the system) + RCS_LABEL ('rcs -q -Nv$(VERSION_SYM):') + SHAR ('shar') + SUFFIX ('.gz') + TAR ('tar') + TARFLAGS ('cvf') + ZIP ('zip') + ZIPFLAGS ('-r') + +An example: + + WriteMakefile( + ...other options... + dist => { + COMPRESS => "bzip2", + SUFFIX => ".bz2" + } + ); + + +=head2 Module Meta-Data + +Long plaguing users of MakeMaker based modules has been the problem of +getting basic information about the module out of the sources +I<without> running the F<Makefile.PL> and doing a bunch of messy +heuristics on the resulting F<Makefile>. To this end a simple module +meta-data file has been introduced, F<META.yml>. + +F<META.yml> is a YAML document (see http://www.yaml.org) containing +basic information about the module (name, version, prerequisites...) +in an easy to read format. The format is developed and defined by the +Module::Build developers (see +http://module-build.sourceforge.net/META-spec.html) + +MakeMaker will automatically generate a F<META.yml> file for you and +add it to your F<MANIFEST> as part of the 'distdir' target (and thus +the 'dist' target). This is intended to seamlessly and rapidly +populate CPAN with module meta-data. If you wish to shut this feature +off, set the C<NO_META> C<WriteMakefile()> flag to true. + + +=head2 Disabling an extension + +If some events detected in F<Makefile.PL> imply that there is no way +to create the Module, but this is a normal state of things, then you +can create a F<Makefile> which does nothing, but succeeds on all the +"usual" build targets. To do so, use + + use ExtUtils::MakeMaker qw(WriteEmptyMakefile); + WriteEmptyMakefile(); + +instead of WriteMakefile(). + +This may be useful if other modules expect this module to be I<built> +OK, as opposed to I<work> OK (say, this system-dependent module builds +in a subdirectory of some other distribution, or is listed as a +dependency in a CPAN::Bundle, but the functionality is supported by +different means on the current architecture). + +=head2 Other Handy Functions + +=over 4 + +=item prompt + + my $value = prompt($message); + my $value = prompt($message, $default); + +The C<prompt()> function provides an easy way to request user input +used to write a makefile. It displays the $message as a prompt for +input. If a $default is provided it will be used as a default. The +function returns the $value selected by the user. + +If C<prompt()> detects that it is not running interactively and there +is nothing on STDIN or if the PERL_MM_USE_DEFAULT environment variable +is set to true, the $default will be used without prompting. This +prevents automated processes from blocking on user input. + +If no $default is provided an empty string will be used instead. + +=back + + +=head1 ENVIRONMENT + +=over 4 + +=item PERL_MM_OPT + +Command line options used by C<MakeMaker-E<gt>new()>, and thus by +C<WriteMakefile()>. The string is split on whitespace, and the result +is processed before any actual command line arguments are processed. + +=item PERL_MM_USE_DEFAULT + +If set to a true value then MakeMaker's prompt function will +always return the default without waiting for user input. + +=item PERL_CORE + +Same as the PERL_CORE parameter. The parameter overrides this. + +=back + +=head1 SEE ALSO + +L<Module::Build> is a pure-Perl alternative to MakeMaker which does +not rely on make or any other external utility. It is easier to +extend to suit your needs. + +L<Module::Install> is a wrapper around MakeMaker which adds features +not normally available. + +L<ExtUtils::ModuleMaker> and L<Module::Starter> are both modules to +help you setup your distribution. + +=head1 AUTHORS + +Andy Dougherty C<doughera@lafayette.edu>, Andreas KE<ouml>nig +C<andreas.koenig@mind.de>, Tim Bunce C<timb@cpan.org>. VMS +support by Charles Bailey C<bailey@newman.upenn.edu>. OS/2 support +by Ilya Zakharevich C<ilya@math.ohio-state.edu>. + +Currently maintained by Michael G Schwern C<schwern@pobox.com> + +Send patches and ideas to C<makemaker@perl.org>. + +Send bug reports via http://rt.cpan.org/. Please send your +generated Makefile along with your report. + +For more up-to-date information, see L<http://www.makemaker.org>. + +=head1 LICENSE + +This program is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + +See L<http://www.perl.com/perl/misc/Artistic.html> + + +=cut |