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[perl5.git] / lib / ExtUtils / MakeMaker.pm
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1package main;
2use vars qw(%att);
3
4# $Id: MakeMaker.pm,v 1.174 1996/02/06 17:03:12 k Exp $
5
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6package ExtUtils::MakeMaker::TieAtt;
7# this package will go away again, when we don't have modules around
8# anymore that import %att It ties an empty %att and records in which
9# object this %att was tied. FETCH and STORE return/store-to the
10# appropriate value from %$self
005c1a0e 11
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12# the warndirectuse method warns if somebody calls MM->something. It
13# has nothing to do with the tie'd %att.
005c1a0e 14
8e07c86e 15$Enough_limit = 5;
a0d0e21e 16
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17sub TIEHASH {
18 bless { SECRETHASH => $_[1]};
005c1a0e 19}
42793c05 20
8e07c86e 21sub FETCH {
4633a7c4 22 print "Warning (non-fatal): Importing of %att is deprecated [$_[1]]
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23 use \$self instead\n" unless ++$Enough>$Enough_limit;
24 print "Further ExtUtils::MakeMaker::TieAtt warnings suppressed\n" if $Enough==$Enough_limit;
25 $_[0]->{SECRETHASH}->{$_[1]};
1aef975c 26}
42793c05 27
8e07c86e 28sub STORE {
4633a7c4 29 print "Warning (non-fatal): Importing of %att is deprecated [$_[1]][$_[2]]
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30 use \$self instead\n" unless ++$Enough>$Enough_limit;
31 print "Further ExtUtils::MakeMaker::TieAtt warnings suppressed\n" if $Enough==$Enough_limit;
32 $_[0]->{SECRETHASH}->{$_[1]} = $_[2];
33}
42793c05 34
8e07c86e 35sub FIRSTKEY {
4633a7c4 36 print "Warning (non-fatal): Importing of %att is deprecated [FIRSTKEY]
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37 use \$self instead\n" unless ++$Enough>$Enough_limit;
38 print "Further ExtUtils::MakeMaker::TieAtt warnings suppressed\n" if $Enough==$Enough_limit;
39 each %{$_[0]->{SECRETHASH}};
40}
42793c05 41
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42sub NEXTKEY {
43 each %{$_[0]->{SECRETHASH}};
44}
005c1a0e 45
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46sub DESTROY {
47}
005c1a0e 48
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49sub warndirectuse {
50 my($caller) = @_;
51 return if $Enough>$Enough_limit;
4633a7c4 52 print STDOUT "Warning (non-fatal): Direct use of class methods deprecated; use\n";
8e07c86e 53 my($method) = $caller =~ /.*:(\w+)$/;
864a5fa8 54 print STDOUT
8e07c86e 55' my $self = shift;
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56 $self->MM::', $method, "();
57 instead\n";
58 print "Further ExtUtils::MakeMaker::TieAtt warnings suppressed\n"
59 if ++$Enough==$Enough_limit;
60}
005c1a0e 61
005c1a0e 62
42793c05 63
005c1a0e 64
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65
66
67package ExtUtils::MakeMaker;
68
69$Version = $VERSION = "5.21";
70$Version_OK = "5.05"; # Makefiles older than $Version_OK will die
8e07c86e 71 # (Will be checked from MakeMaker version 4.13 onwards)
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72($Revision = substr(q$Revision: 1.174 $, 10)) =~ s/\s+$//;
73
74
005c1a0e 75
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76use Config;
77use Carp;
78use Cwd;
79require Exporter;
80require ExtUtils::Manifest;
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81{
82 # Current (5.21) FileHandle doesn't work with miniperl, so we roll our own
83 # that's all copy & paste code from FileHandle.pm, version of perl5.002b3
84 package FileHandle;
85 use Symbol;
86 sub new {
87 @_ >= 1 && @_ <= 3 or croak('usage: new FileHandle [FILENAME [,MODE]]');
88 my $class = shift;
89 my $fh = gensym;
90 if (@_) {
91 FileHandle::open($fh, @_)
92 or return undef;
93 }
94 bless $fh, $class;
95 }
96 sub open {
97 @_ >= 2 && @_ <= 4 or croak('usage: $fh->open(FILENAME [,MODE [,PERMS]])');
98 my ($fh, $file) = @_;
99 if (@_ > 2) {
100 my ($mode, $perms) = @_[2, 3];
101 if ($mode =~ /^\d+$/) {
102 defined $perms or $perms = 0666;
103 return sysopen($fh, $file, $mode, $perms);
104 }
105 $file = "./" . $file unless $file =~ m#^/#;
106 $file = _open_mode_string($mode) . " $file\0";
107 }
108 open($fh, $file);
109 }
110 sub close {
111 @_ == 1 or croak('usage: $fh->close()');
112 close($_[0]);
113 }
114}
115
116use vars qw(
117 $VERSION $Version_OK $Revision
118 $Verbose %MM_Sections
119 @MM_Sections %Recognized_Att_Keys @Get_from_Config
120 %Prepend_dot_dot %Config @Parent %NORMAL_INC
121 $Setup_done
122 );
8e07c86e 123#use strict qw(refs);
005c1a0e 124
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125eval {require DynaLoader;}; # Get mod2fname, if defined. Will fail
126 # with miniperl.
005c1a0e 127
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128#
129# Set up the inheritance before we pull in the MM_* packages, because they
130# import variables and functions from here
131#
132@ISA = qw(Exporter);
133@EXPORT = qw(&WriteMakefile &writeMakefile $Verbose &prompt);
134@EXPORT_OK = qw($VERSION &Version_check &help &neatvalue &mkbootstrap &mksymlists
135 $Version %att); ## Import of %att is deprecated, please use OO features!
136 # $Version in mixed case will go away!
005c1a0e 137
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138#
139# Dummy package MM inherits actual methods from OS-specific
140# default packages. We use this intermediate package so
141# MY::XYZ->func() can call MM->func() and get the proper
142# default routine without having to know under what OS
143# it's running.
144#
145@MM::ISA = qw[ExtUtils::MM_Unix ExtUtils::Liblist ExtUtils::MakeMaker];
42793c05 146
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147#
148# Setup dummy package:
149# MY exists for overriding methods to be defined within
150#
151{
152 package MY;
153 @ISA = qw(MM);
154}
42793c05 155
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156{
157 package MM;
158 # From somwhere they will want to inherit DESTROY
159 sub DESTROY {}
160}
42793c05 161
e05e23b1 162#
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163# Now we can can pull in the friends
164# Since they will require us back, we would better prepare the needed
165# data _before_ we require them.
e05e23b1 166#
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167$Is_VMS = ($Config{osname} eq 'VMS');
168$Is_OS2 = ($Config{osname} =~ m|^os/?2$|i);
169
e05e23b1 170require ExtUtils::MM_Unix;
a5f75d66 171if ($Is_VMS) {
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172 require ExtUtils::MM_VMS;
173 require VMS::Filespec;
174 import VMS::Filespec '&vmsify';
175}
a5f75d66 176if ($Is_OS2) {
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177 require ExtUtils::MM_OS2;
178}
75f92628 179
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180%NORMAL_INC = %INC;
181# package name for the classes into which the first object will be blessed
182$PACKNAME = "PACK000";
42793c05 183
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184 #####
185# # # # #####
186# # # # #
187 ##### # # #####
188 # # # # #
189# # # # # #
190 ##### #### #####
4633a7c4 191
864a5fa8 192
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193#
194# MakeMaker serves currently (v 5.20) only for two purposes:
195# Version_Check, and WriteMakefile. For WriteMakefile SelfLoader
196# doesn't buy us anything. But for Version_Check we win with
197# SelfLoader more than a second.
198#
199# The only subroutine we do not SelfLoad is Version_Check because it's
200# called so often. Loading this minimum still requires 1.2 secs on my
201# Indy :-(
202#
203
204sub Version_check {
205 my($checkversion) = @_;
206 die "Your Makefile was built with ExtUtils::MakeMaker v $checkversion.
207Current Version is $ExtUtils::MakeMaker::VERSION. There have been considerable
208changes in the meantime.
209Please rerun 'perl Makefile.PL' to regenerate the Makefile.\n"
210 if $checkversion < $Version_OK;
211 printf STDOUT "%s %s %s %s.\n", "Makefile built with ExtUtils::MakeMaker v",
212 $checkversion, "Current Version is", $VERSION
213 unless $checkversion == $VERSION;
8e07c86e 214}
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215
216# We don't selfload this, because chdir sometimes has problems
217sub eval_in_subdirs {
218 my($self) = @_;
219 my($dir);
220# print "Starting to wade through directories:\n";
221# print join "\n", @{$self->{DIR}}, "\n";
222 my $pwd = cwd();
223
224 # As strange things happened twice in the history of MakeMaker to $self->{DIR},
225 # lets be careful, maybe it helps some:
226# my(@copy_of_DIR) = @{$self->{DIR}};
227# my %copy;
228# @copy{@copy_od_DIR} = (1) x @copy_of_DIR;
229
230 # with Tk-9.02 these give me as third directory "1":
231 # foreach $dir (@($self->{DIR}){
232 # foreach $dir (@copy_of_DIR){
233
234 # this gives mi as third directory a core dump:
235 # while ($dir = shift @copy_of_DIR){
236
237 # this finishes the loop immediately:
238# foreach $dir (keys %copy){
239# print "Next to come: $dir\n";
240# chdir $dir or die "Couldn't change to directory $dir: $!";
241# package main;
242# my $fh = new FileHandle;
243# $fh->open("Makefile.PL") or carp("Couldn't open Makefile.PL in $dir");
244# my $eval = join "", <$fh>;
245# $fh->close;
246# eval $eval;
247# warn "WARNING from evaluation of $dir/Makefile.PL: $@" if $@;
248# chdir $pwd or die "Couldn't change to directory $pwd: $!";
249# }
250
251
252 # So this did the trick (did it?)
253 foreach $dir (@{$self->{DIR}}){
254# print "Next to come: $dir\n";
255 my($abs) = $self->catdir($pwd,$dir);
256 $self->eval_in_x($abs);
257 }
258
259 chdir $pwd;
260
261# print "Proudly presenting you self->{DIR}:\n";
262# print join "\n", @{$self->{DIR}}, "\n";
263
864a5fa8 264}
42793c05 265
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266sub eval_in_x {
267 my($self,$dir) = @_;
268 package main;
269 chdir $dir or carp("Couldn't change to directory $dir: $!");
270 my $fh = new FileHandle;
271 $fh->open("Makefile.PL") or carp("Couldn't open Makefile.PL in $dir");
272 my $eval = join "", <$fh>;
273 $fh->close;
274 eval $eval;
275 warn "WARNING from evaluation of $dir/Makefile.PL: $@" if $@;
276}
277
278# use SelfLoader;
279# sub ExtUtils::MakeMaker::full_setup ;
280# sub ExtUtils::MakeMaker::attrib_help ;
281# sub ExtUtils::MakeMaker::writeMakefile ;
282# sub ExtUtils::MakeMaker::WriteMakefile ;
283# sub ExtUtils::MakeMaker::new ;
284# sub ExtUtils::MakeMaker::check_manifest ;
285# sub ExtUtils::MakeMaker::parse_args ;
286# sub ExtUtils::MakeMaker::check_hints ;
287# sub ExtUtils::MakeMaker::mv_all_methods ;
288# sub ExtUtils::MakeMaker::prompt ;
289# sub ExtUtils::MakeMaker::help ;
290# sub ExtUtils::MakeMaker::skipcheck ;
291# sub ExtUtils::MakeMaker::flush ;
292# sub ExtUtils::MakeMaker::mkbootstrap ;
293# sub ExtUtils::MakeMaker::mksymlists ;
294# sub ExtUtils::MakeMaker::neatvalue ;
295# sub ExtUtils::MakeMaker::selfdocument ;
296
297# 1;
298
299# __DATA__
300
301#
302# We're done with inheritance setup. As we have two frequently called
303# things: Check_Version() and mod_install(), we want to reduce startup
304# time. Only WriteMakefile needs all the power here.
305#
306
307sub full_setup {
308 $Verbose ||= 0;
309 $^W=1;
310 $SIG{__WARN__} = sub {
311 $_[0] =~ /^Use of uninitialized value/ && return;
312 $_[0] =~ /used only once/ && return;
313 $_[0] =~ /^Subroutine\s+[\w:]+\s+redefined/ && return;
314 warn @_;
315 };
316
317 @MM_Sections =
318 qw(
319 post_initialize const_config constants const_loadlibs
320 const_cccmd tool_autosplit tool_xsubpp tools_other dist macro
321 depend post_constants pasthru c_o xs_c xs_o top_targets
322 linkext dlsyms dynamic dynamic_bs dynamic_lib static
323 static_lib installpm manifypods processPL installbin subdirs
324 clean realclean dist_basics dist_core dist_dir dist_test
325 dist_ci install force perldepend makefile staticmake test
326 postamble selfdocument
327 ); # loses section ordering
328
329 @MM_Sections{@MM_Sections} = {} x @MM_Sections;
330
331 # All sections are valid keys.
332 %Recognized_Att_Keys = %MM_Sections;
333
334 # we will use all these variables in the Makefile
335 @Get_from_Config =
336 qw(
337 ar cc cccdlflags ccdlflags dlext dlsrc ld lddlflags ldflags libc
338 lib_ext obj_ext ranlib sitelibexp sitearchexp so
339 );
340
341 my $item;
342 foreach $item (split(/\n/,attrib_help())){
343 next unless $item =~ m/^=item\s+(\w+)\s*$/;
344 $Recognized_Att_Keys{$1} = $2;
345 print "Attribute '$1' => '$2'\n" if ($Verbose >= 2);
346 }
347 foreach $item (@Get_from_Config) {
348 $Recognized_Att_Keys{uc $item} = $Config{$item};
349 print "Attribute '\U$item\E' => '$Config{$item}'\n"
350 if ($Verbose >= 2);
351 }
352
353 #
354 # When we pass these through to a Makefile.PL in a subdirectory, we prepend
355 # "..", so that all files to be installed end up below ./blib
356 #
357 %Prepend_dot_dot =
358 qw(
359 INST_LIB 1 INST_ARCHLIB 1 INST_EXE 1 MAP_TARGET 1 INST_MAN1DIR 1 INST_MAN3DIR 1
360 PERL_SRC 1 PERL 1 FULLPERL 1
361 );
362
363}
364
365sub attrib_help {
366 return $Attrib_Help if $Attrib_Help;
367 my $switch = 0;
368 my $help = "";
369 my $line;
370 while ($line = <DATA>) {
371 $switch ||= $line =~ /^=item C\s*$/;
372 next unless $switch;
373 last if $line =~ /^=cut/;
374 $help .= $line;
375 }
376# close DATA;
377 $Attrib_Help = $help;
378}
42793c05 379
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380sub writeMakefile {
381 die <<END;
232e078e 382
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383The extension you are trying to build apparently is rather old and
384most probably outdated. We detect that from the fact, that a
385subroutine "writeMakefile" is called, and this subroutine is not
386supported anymore since about October 1994.
40000a8c 387
4633a7c4
LW
388Please contact the author or look into CPAN (details about CPAN can be
389found in the FAQ and at http:/www.perl.com) for a more recent version
390of the extension. If you're really desperate, you can try to change
391the subroutine name from writeMakefile to WriteMakefile and rerun
392'perl Makefile.PL', but you're most probably left alone, when you do
393so.
42793c05 394
8e07c86e 395The MakeMaker team
1aef975c 396
42793c05 397END
8e07c86e 398}
42793c05 399
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400sub WriteMakefile {
401 Carp::croak "WriteMakefile: Need even number of args" if @_ % 2;
402 my %att = @_;
403 MM->new(\%att)->flush;
42793c05
TB
404}
405
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406sub new {
407 my($class,$self) = @_;
e05e23b1
PP
408 full_setup() unless $Setup_done++;
409
8e07c86e 410 my($key);
42793c05 411
e05e23b1 412 print STDOUT "MakeMaker (v$VERSION)\n" if $Verbose;
8e07c86e
AD
413 if (-f "MANIFEST" && ! -f "Makefile"){
414 check_manifest();
1aef975c 415 }
42793c05 416
8e07c86e 417 $self = {} unless (defined $self);
005c1a0e 418
864a5fa8 419 check_hints($self);
4633a7c4 420
8e07c86e 421 my(%initial_att) = %$self; # record initial attributes
005c1a0e 422
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423 if (defined $self->{CONFIGURE}) {
424 if (ref $self->{CONFIGURE} eq 'CODE') {
425 $self = { %$self, %{&{$self->{CONFIGURE}}}};
005c1a0e 426 } else {
8e07c86e 427 croak "Attribute 'CONFIGURE' to WriteMakefile() not a code reference\n";
005c1a0e
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428 }
429 }
a0d0e21e 430
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431 # This is for old Makefiles written pre 5.00, will go away
432 if ( Carp::longmess("") =~ /runsubdirpl/s ){
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433 #$self->{Correct_relativ_directories}++;
434 carp("WARNING: Please rerun 'perl Makefile.PL' to regenerate your Makefiles\n");
8e07c86e
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435 } else {
436 $self->{Correct_relativ_directories}=0;
437 }
5d94fbed 438
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439 my $class = ++$PACKNAME;
440 {
441# no strict;
e05e23b1 442 print "Blessing Object into class [$class]\n" if $Verbose>=2;
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443 mv_all_methods("MY",$class);
444 bless $self, $class;
e05e23b1 445 push @Parent, $self;
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446 @{"$class\:\:ISA"} = 'MM';
447 }
5d94fbed 448
e05e23b1
PP
449 if (defined $Parent[-2]){
450 $self->{PARENT} = $Parent[-2];
8e07c86e 451 my $key;
e05e23b1 452 for $key (keys %Prepend_dot_dot) {
4633a7c4 453 next unless defined $self->{PARENT}{$key};
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454 $self->{$key} = $self->{PARENT}{$key};
455 $self->{$key} = $self->catdir("..",$self->{$key})
456 unless $self->{$key} =~ m!^/!;
457 }
458 $self->{PARENT}->{CHILDREN}->{$class} = $self if $self->{PARENT};
459 } else {
460 parse_args($self,@ARGV);
461 }
a0d0e21e 462
8e07c86e 463 $self->{NAME} ||= $self->guess_name;
a0d0e21e 464
8e07c86e 465 ($self->{NAME_SYM} = $self->{NAME}) =~ s/\W+/_/g;
a0d0e21e 466
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467 $self->init_main();
468
0d8023a2
PP
469 if (! $self->{PERL_SRC} ) {
470 my($pthinks) = $INC{'Config.pm'};
471 $pthinks = vmsify($pthinks) if $Is_VMS;
e05e23b1 472 if ($pthinks ne $self->catfile($Config{archlibexp},'Config.pm')){
0d8023a2
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473 $pthinks =~ s!/Config\.pm$!!;
474 $pthinks =~ s!.*/!!;
475 print STDOUT <<END;
005c1a0e
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476Your perl and your Config.pm seem to have different ideas about the architecture
477they are running on.
8e07c86e 478Perl thinks: [$pthinks]
e05e23b1 479Config says: [$Config{archname}]
005c1a0e
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480This may or may not cause problems. Please check your installation of perl if you
481have problems building this extension.
482END
0d8023a2 483 }
005c1a0e
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484 }
485
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486 $self->init_dirscan();
487 $self->init_others();
75f92628 488
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489 push @{$self->{RESULT}}, <<END;
490# This Makefile is for the $self->{NAME} extension to perl.
491#
e05e23b1
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492# It was generated automatically by MakeMaker version
493# $VERSION (Revision: $Revision) from the contents of
494# Makefile.PL. Don't edit this file, edit Makefile.PL instead.
8e07c86e
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495#
496# ANY CHANGES MADE HERE WILL BE LOST!
497#
498# MakeMaker Parameters:
499END
a0d0e21e 500
42793c05
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501 foreach $key (sort keys %initial_att){
502 my($v) = neatvalue($initial_att{$key});
8e07c86e 503 $v =~ s/(CODE|HASH|ARRAY|SCALAR)\([\dxa-f]+\)/$1\(...\)/;
42793c05 504 $v =~ tr/\n/ /s;
8e07c86e 505 push @{$self->{RESULT}}, "# $key => $v";
42793c05 506 }
a0d0e21e 507
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508 # turn the SKIP array into a SKIPHASH hash
509 my (%skip,$skip);
510 for $skip (@{$self->{SKIP} || []}) {
511 $self->{SKIPHASH}{$skip} = 1;
512 }
42793c05 513
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514 # We run all the subdirectories now. They don't have much to query
515 # from the parent, but the parent has to query them: if they need linking!
8e07c86e 516 unless ($self->{NORECURS}) {
e05e23b1 517 $self->eval_in_subdirs if @{$self->{DIR}};
42793c05 518 }
a0d0e21e 519
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520 tie %::att, ExtUtils::MakeMaker::TieAtt, $self;
521 my $section;
e05e23b1
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522 foreach $section ( @MM_Sections ){
523 print "Processing Makefile '$section' section\n" if ($Verbose >= 2);
8e07c86e
AD
524 my($skipit) = $self->skipcheck($section);
525 if ($skipit){
526 push @{$self->{RESULT}}, "\n# --- MakeMaker $section section $skipit.";
4e68a208 527 } else {
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528 my(%a) = %{$self->{$section} || {}};
529 push @{$self->{RESULT}}, "\n# --- MakeMaker $section section:";
e05e23b1 530 push @{$self->{RESULT}}, "# " . join ", ", %a if $Verbose && %a;
8e07c86e 531 push @{$self->{RESULT}}, $self->nicetext($self->$section( %a ));
e05e23b1 532 }
232e078e 533 }
8e07c86e 534
e05e23b1
PP
535 push @{$self->{RESULT}}, "\n# End.";
536 pop @Parent;
8e07c86e 537
e05e23b1 538 $self;
232e078e
AD
539}
540
e05e23b1
PP
541sub check_manifest {
542 print STDOUT "Checking if your kit is complete...\n";
543 $ExtUtils::Manifest::Quiet=$ExtUtils::Manifest::Quiet=1; #avoid warning
544 my(@missed)=ExtUtils::Manifest::manicheck();
545 if (@missed){
546 print STDOUT "Warning: the following files are missing in your kit:\n";
547 print "\t", join "\n\t", @missed;
548 print STDOUT "\n";
549 print STDOUT "Please inform the author.\n";
8e07c86e 550 } else {
e05e23b1 551 print STDOUT "Looks good\n";
8e07c86e 552 }
8e07c86e
AD
553}
554
e05e23b1
PP
555sub parse_args{
556 my($self, @args) = @_;
557 foreach (@args){
558 unless (m/(.*?)=(.*)/){
559 help(),exit 1 if m/^help$/;
560 ++$Verbose if m/^verb/;
561 next;
562 }
563 my($name, $value) = ($1, $2);
564 if ($value =~ m/^~(\w+)?/){ # tilde with optional username
565 $value =~ s [^~(\w*)]
566 [$1 ?
567 ((getpwnam($1))[7] || "~$1") :
568 (getpwuid($>))[7]
569 ]ex;
570 }
571 # This may go away, in mid 1996
572 if ($self->{Correct_relativ_directories}){
573 $value = $self->catdir("..",$value)
574 if $Prepend_dot_dot{$name} && ! $value =~ m!^/!;
575 }
a5f75d66 576 $self->{uc($name)} = $value;
8e07c86e 577 }
e05e23b1
PP
578 # This may go away, in mid 1996
579 delete $self->{Correct_relativ_directories};
8e07c86e 580
e05e23b1
PP
581 # catch old-style 'potential_libs' and inform user how to 'upgrade'
582 if (defined $self->{potential_libs}){
583 my($msg)="'potential_libs' => '$self->{potential_libs}' should be";
584 if ($self->{potential_libs}){
585 print STDOUT "$msg changed to:\n\t'LIBS' => ['$self->{potential_libs}']\n";
586 } else {
587 print STDOUT "$msg deleted.\n";
588 }
589 $self->{LIBS} = [$self->{potential_libs}];
590 delete $self->{potential_libs};
8e07c86e 591 }
e05e23b1
PP
592 # catch old-style 'ARMAYBE' and inform user how to 'upgrade'
593 if (defined $self->{ARMAYBE}){
594 my($armaybe) = $self->{ARMAYBE};
595 print STDOUT "ARMAYBE => '$armaybe' should be changed to:\n",
596 "\t'dynamic_lib' => {ARMAYBE => '$armaybe'}\n";
597 my(%dl) = %{$self->{dynamic_lib} || {}};
598 $self->{dynamic_lib} = { %dl, ARMAYBE => $armaybe};
599 delete $self->{ARMAYBE};
8e07c86e 600 }
e05e23b1
PP
601 if (defined $self->{LDTARGET}){
602 print STDOUT "LDTARGET should be changed to LDFROM\n";
603 $self->{LDFROM} = $self->{LDTARGET};
604 delete $self->{LDTARGET};
8e07c86e 605 }
e05e23b1
PP
606 # Turn a DIR argument on the command line into an array
607 if (defined $self->{DIR} && ref \$self->{DIR} eq 'SCALAR') {
608 # So they can choose from the command line, which extensions they want
609 # the grep enables them to have some colons too much in case they
610 # have to build a list with the shell
611 $self->{DIR} = [grep $_, split ":", $self->{DIR}];
8e07c86e 612 }
e05e23b1
PP
613 my $mmkey;
614 foreach $mmkey (sort keys %$self){
615 print STDOUT " $mmkey => ", neatvalue($self->{$mmkey}), "\n" if $Verbose;
616 print STDOUT "'$mmkey' is not a known MakeMaker parameter name.\n"
617 unless exists $Recognized_Att_Keys{$mmkey};
618 }
619}
8e07c86e 620
e05e23b1
PP
621sub check_hints {
622 my($self) = @_;
623 # We allow extension-specific hints files.
864a5fa8 624
e05e23b1 625 return unless -d "hints";
8e07c86e 626
e05e23b1
PP
627 # First we look for the best hintsfile we have
628 my(@goodhints);
629 my($hint)="$Config{osname}_$Config{osvers}";
630 $hint =~ s/\./_/g;
631 $hint =~ s/_$//;
632 return unless $hint;
fed7345c 633
e05e23b1
PP
634 # Also try without trailing minor version numbers.
635 while (1) {
636 last if -f "hints/$hint.pl"; # found
637 } continue {
638 last unless $hint =~ s/_[^_]*$//; # nothing to cut off
639 }
640 return unless -f "hints/$hint.pl"; # really there
fed7345c 641
e05e23b1
PP
642 # execute the hintsfile:
643 my $fh = new FileHandle;
644 $fh->open("hints/$hint.pl");
645 @goodhints = <$fh>;
646 $fh->close;
647 print STDOUT "Processing hints file hints/$hint.pl\n";
648 eval join('',@goodhints);
649 print STDOUT $@ if $@;
650}
8e07c86e 651
e05e23b1
PP
652sub mv_all_methods {
653 my($from,$to) = @_;
654 my($method);
655 my($symtab) = \%{"${from}::"};
656# no strict;
fed7345c 657
e05e23b1
PP
658 # Here you see the *current* list of methods that are overridable
659 # from Makefile.PL via MY:: subroutines. As of VERSION 5.07 I'm
660 # still trying to reduce the list to some reasonable minimum --
661 # because I want to make it easier for the user. A.K.
40000a8c 662
e05e23b1
PP
663 foreach $method (@MM_Sections, qw[ dir_target
664fileparse fileparse_set_fstype installpm_x libscan makeaperl
665mksymlists needs_linking subdir_x test_via_harness
666test_via_script writedoc ]) {
fed7345c 667
e05e23b1
PP
668 # We cannot say "next" here. Nick might call MY->makeaperl
669 # which isn't defined right now
fed7345c 670
e05e23b1 671 # next unless defined &{"${from}::$method"};
fed7345c 672
e05e23b1 673 *{"${to}::$method"} = \&{"${from}::$method"};
8e07c86e 674
e05e23b1
PP
675 # delete would do, if we were sure, nobody ever called
676 # MY->makeaperl directly
232e078e 677
e05e23b1 678 # delete $symtab->{$method};
fed7345c 679
e05e23b1
PP
680 # If we delete a method, then it will be undefined and cannot
681 # be called. But as long as we have Makefile.PLs that rely on
682 # %MY:: being intact, we have to fill the hole with an
683 # inheriting method:
fed7345c 684
e05e23b1 685 eval "package MY; sub $method {local *$method; shift->MY::$method(\@_); }";
5d94fbed 686
5d94fbed
AD
687 }
688
e05e23b1
PP
689 # We have to clean out %INC also, because the current directory is
690 # changed frequently and Graham Barr prefers to get his version
691 # out of a History.pl file which is "required" so woudn't get
692 # loaded again in another extension requiring a History.pl
a0d0e21e 693
e05e23b1
PP
694 my $inc;
695 foreach $inc (keys %INC) {
696 next if $NORMAL_INC{$inc};
697 #warn "***$inc*** deleted";
698 delete $INC{$inc};
8e07c86e 699 }
a0d0e21e 700
8e07c86e
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701}
702
e05e23b1
PP
703sub prompt {
704 my($mess,$def)=@_;
705 BEGIN { $ISA_TTY = -t STDIN && -t STDOUT }
706 Carp::confess("prompt function called without an argument") unless defined $mess;
707 $def = "" unless defined $def;
708 my $dispdef = "[$def] ";
709 my $ans;
710 if ($ISA_TTY) {
711 local $|=1;
712 print "$mess $dispdef";
713 chop($ans = <STDIN>);
8e07c86e 714 }
e05e23b1
PP
715 return $ans if defined $ans;
716 return $def;
42793c05 717}
fed7345c 718
e05e23b1 719sub help {print &attrib_help, "\n";}
8e07c86e 720
e05e23b1 721sub skipcheck{
8e07c86e 722 my($self) = shift;
e05e23b1
PP
723 my($section) = @_;
724 if ($section eq 'dynamic') {
725 print STDOUT "Warning (non-fatal): Target 'dynamic' depends on targets ",
726 "in skipped section 'dynamic_bs'\n"
727 if $self->{SKIPHASH}{dynamic_bs} && $Verbose;
728 print STDOUT "Warning (non-fatal): Target 'dynamic' depends on targets ",
729 "in skipped section 'dynamic_lib'\n"
730 if $self->{SKIPHASH}{dynamic_lib} && $Verbose;
8e07c86e 731 }
e05e23b1
PP
732 if ($section eq 'dynamic_lib') {
733 print STDOUT "Warning (non-fatal): Target '\$(INST_DYNAMIC)' depends on ",
734 "targets in skipped section 'dynamic_bs'\n"
735 if $self->{SKIPHASH}{dynamic_bs} && $Verbose;
736 }
737 if ($section eq 'static') {
738 print STDOUT "Warning (non-fatal): Target 'static' depends on targets ",
739 "in skipped section 'static_lib'\n"
740 if $self->{SKIPHASH}{static_lib} && $Verbose;
8e07c86e 741 }
e05e23b1
PP
742 return 'skipped' if $self->{SKIPHASH}{$section};
743 return '';
8e07c86e
AD
744}
745
e05e23b1
PP
746sub flush {
747 my $self = shift;
748 my($chunk);
749 my $fh = new FileHandle;
750 print STDOUT "Writing $self->{MAKEFILE} for $self->{NAME}\n";
8e07c86e 751
e05e23b1
PP
752 unlink($self->{MAKEFILE}, "MakeMaker.tmp", $Is_VMS ? 'Descrip.MMS' : '');
753 $fh->open(">MakeMaker.tmp") or die "Unable to open MakeMaker.tmp: $!";
8e07c86e 754
e05e23b1
PP
755 for $chunk (@{$self->{RESULT}}) {
756 print $fh "$chunk\n";
8e07c86e 757 }
e05e23b1
PP
758
759 $fh->close;
760 my($finalname) = $self->{MAKEFILE};
761 rename("MakeMaker.tmp", $finalname);
762 chmod 0644, $finalname unless $Is_VMS;
763 system("$Config::Config{eunicefix} $finalname") unless $Config::Config{eunicefix} eq ":";
40000a8c
AD
764}
765
e05e23b1
PP
766# The following mkbootstrap() is only for installations that are calling
767# the pre-4.1 mkbootstrap() from their old Makefiles. This MakeMaker
768# writes Makefiles, that use ExtUtils::Mkbootstrap directly.
769sub mkbootstrap {
770 die <<END;
771!!! Your Makefile has been built such a long time ago, !!!
772!!! that is unlikely to work with current MakeMaker. !!!
773!!! Please rebuild your Makefile !!!
774END
8e07c86e 775}
005c1a0e 776
e05e23b1
PP
777# Ditto for mksymlists() as of MakeMaker 5.17
778sub mksymlists {
779 die <<END;
780!!! Your Makefile has been built such a long time ago, !!!
781!!! that is unlikely to work with current MakeMaker. !!!
782!!! Please rebuild your Makefile !!!
783END
4633a7c4
LW
784}
785
e05e23b1
PP
786sub neatvalue {
787 my($v) = @_;
788 return "undef" unless defined $v;
789 my($t) = ref $v;
790 return "q[$v]" unless $t;
791 if ($t eq 'ARRAY') {
792 my(@m, $elem, @neat);
793 push @m, "[";
794 foreach $elem (@$v) {
795 push @neat, "q[$elem]";
796 }
797 push @m, join ", ", @neat;
798 push @m, "]";
799 return join "", @m;
800 }
801 return "$v" unless $t eq 'HASH';
802 my(@m, $key, $val);
803 push(@m,"$key=>".neatvalue($val)) while (($key,$val) = each %$v);
804 return "{ ".join(', ',@m)." }";
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805}
806
e05e23b1
PP
807sub selfdocument {
808 my($self) = @_;
809 my(@m);
810 if ($Verbose){
811 push @m, "\n# Full list of MakeMaker attribute values:";
812 foreach $key (sort keys %$self){
813 next if $key eq 'RESULT' || $key =~ /^[A-Z][a-z]/;
814 my($v) = neatvalue($self->{$key});
815 $v =~ s/(CODE|HASH|ARRAY|SCALAR)\([\dxa-f]+\)/$1\(...\)/;
816 $v =~ tr/\n/ /s;
817 push @m, "# $key => $v";
818 }
819 }
820 join "\n", @m;
821}
4e68a208 822
005c1a0e
AD
823package ExtUtils::MakeMaker;
8241;
825
e05e23b1
PP
826# Without selfLoader we need
827__DATA__
828
829
830# For SelfLoader we need
831# __END__ DATA
832
005c1a0e
AD
833
834=head1 NAME
835
836ExtUtils::MakeMaker - create an extension Makefile
837
838=head1 SYNOPSIS
839
840C<use ExtUtils::MakeMaker;>
841
842C<WriteMakefile( ATTRIBUTE =E<gt> VALUE [, ...] );>
843
8e07c86e
AD
844which is really
845
846C<MM-E<gt>new(\%att)-E<gt>flush;>
847
005c1a0e
AD
848=head1 DESCRIPTION
849
850This utility is designed to write a Makefile for an extension module
851from a Makefile.PL. It is based on the Makefile.SH model provided by
852Andy Dougherty and the perl5-porters.
853
854It splits the task of generating the Makefile into several subroutines
855that can be individually overridden. Each subroutine returns the text
856it wishes to have written to the Makefile.
857
4633a7c4
LW
858=head2 Hintsfile support
859
005c1a0e 860MakeMaker.pm uses the architecture specific information from
8e07c86e
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861Config.pm. In addition it evaluates architecture specific hints files
862in a C<hints/> directory. The hints files are expected to be named
863like their counterparts in C<PERL_SRC/hints>, but with an C<.pl> file
864name extension (eg. C<next_3_2.pl>). They are simply C<eval>ed by
865MakeMaker within the WriteMakefile() subroutine, and can be used to
866execute commands as well as to include special variables. The rules
867which hintsfile is chosen are the same as in Configure.
868
4633a7c4
LW
869The hintsfile is eval()ed immediately after the arguments given to
870WriteMakefile are stuffed into a hash reference $self but before this
871reference becomes blessed. So if you want to do the equivalent to
872override or create an attribute you would say something like
873
874 $self->{LIBS} = ['-ldbm -lucb -lc'];
875
8e07c86e
AD
876=head2 What's new in version 5 of MakeMaker
877
878MakeMaker 5 is pure object oriented. This allows us to write an
879unlimited number of Makefiles with a single perl process. 'perl
880Makefile.PL' with MakeMaker 5 goes through all subdirectories
881immediately and evaluates any Makefile.PL found in the next level
882subdirectories. The benefit of this approach comes in useful for both
883single and multi directories extensions.
884
885Multi directory extensions have an immediately visible speed
886advantage, because there's no startup penalty for any single
887subdirectory Makefile.
888
889Single directory packages benefit from the much improved
890needs_linking() method. As the main Makefile knows everything about
891the subdirectories, a needs_linking() method can now query all
892subdirectories if there is any linking involved down in the tree. The
893speedup for PM-only Makefiles seems to be around 1 second on my
894Indy 100 MHz.
895
896=head2 Incompatibilities between MakeMaker 5.00 and 4.23
897
898There are no incompatibilities in the short term, as all changes are
899accompanied by short-term workarounds that guarantee full backwards
900compatibility.
901
4633a7c4 902You are likely to face a few warnings that expose deprecations which
8e07c86e
AD
903will result in incompatibilities in the long run:
904
905You should not use %att directly anymore. Instead any subroutine you
906override in the MY package will be called by the object method, so you
907can access all object attributes directly via the object in $_[0].
908
909You should not call the class methos MM->something anymore. Instead
910you should call the superclass. Something like
911
912 sub MY::constants {
913 my $self = shift;
8e07c86e
AD
914 $self->MM::constants();
915 }
916
917Especially the libscan() and exescan() methods should be altered
918towards OO programming, that means do not expect that $_ to contain
919the path but rather $_[1].
920
8e07c86e 921Try to build several extensions simultanously to debug your
e05e23b1
PP
922Makefile.PL. You can unpack a bunch of distributed packages within one
923directory and run
8e07c86e 924
e05e23b1 925 perl -MExtUtils::MakeMaker -e 'WriteMakefile()'
8e07c86e
AD
926
927That's actually fun to watch :)
928
929Final suggestion: Try to delete all of your MY:: subroutines and
930watch, if you really still need them. MakeMaker might already do what
931you want without them. That's all about it.
932
005c1a0e
AD
933
934=head2 Default Makefile Behaviour
935
936The automatically generated Makefile enables the user of the extension
937to invoke
938
939 perl Makefile.PL # optionally "perl Makefile.PL verbose"
940 make
8e07c86e
AD
941 make test # optionally set TEST_VERBOSE=1
942 make install # See below
005c1a0e
AD
943
944The Makefile to be produced may be altered by adding arguments of the
e05e23b1 945form C<KEY=VALUE>. E.g.
005c1a0e 946
e05e23b1 947 perl Makefile.PL PREFIX=/tmp/myperl5
005c1a0e
AD
948
949Other interesting targets in the generated Makefile are
950
951 make config # to check if the Makefile is up-to-date
8e07c86e
AD
952 make clean # delete local temp files (Makefile gets renamed)
953 make realclean # delete derived files (including ./blib)
e05e23b1 954 make ci # check in all the files in the MANIFEST file
005c1a0e
AD
955 make dist # see below the Distribution Support section
956
e05e23b1
PP
957=head2 make test
958
959MakeMaker checks for the existence of a file named "test.pl" in the
960current directory and if it exists it adds commands to the test target
961of the generated Makefile that will execute the script with the proper
962set of perl C<-I> options.
963
964MakeMaker also checks for any files matching glob("t/*.t"). It will
965add commands to the test target of the generated Makefile that execute
966all matching files via the L<Test::Harness> module with the C<-I>
967switches set correctly.
968
969=head2 make install
005c1a0e 970
8e07c86e
AD
971make alone puts all relevant files into directories that are named by
972the macros INST_LIB, INST_ARCHLIB, INST_EXE, INST_MAN1DIR, and
e05e23b1 973INST_MAN3DIR. All these default to something below ./blib if
8e07c86e
AD
974you are I<not> building below the perl source directory. If you I<are>
975building below the perl source, INST_LIB and INST_ARCHLIB default to
4633a7c4 976 ../../lib, and INST_EXE is not defined.
005c1a0e 977
e05e23b1
PP
978The I<install> target of the generated Makefile copies the files found
979below each of the INST_* directories to their INSTALL*
980counterparts. Which counterparts are chosen depends on the setting of
981INSTALLDIRS according to the following table:
005c1a0e 982
e05e23b1
PP
983 INSTALLDIRS set to
984 perl site
985
986 INST_LIB INSTALLPRIVLIB INSTALLSITELIB
987 INST_ARCHLIB INSTALLARCHLIB INSTALLSITEARCH
988 INST_EXE INSTALLBIN
989 INST_MAN1DIR INSTALLMAN1DIR
990 INST_MAN3DIR INSTALLMAN3DIR
005c1a0e 991
8e07c86e
AD
992The INSTALL... macros in turn default to their %Config
993($Config{installprivlib}, $Config{installarchlib}, etc.) counterparts.
005c1a0e 994
e05e23b1
PP
995If you don't want to keep the defaults, MakeMaker helps you to
996minimize the typing needed: the usual relationship between
997INSTALLPRIVLIB and INSTALLARCHLIB is determined by Configure at perl
998compilation time. MakeMaker supports the user who sets
999INSTALLPRIVLIB. If INSTALLPRIVLIB is set, but INSTALLARCHLIB not, then
1000MakeMaker defaults the latter to be the same subdirectory of
1001INSTALLPRIVLIB as Configure decided for the counterparts in %Config ,
1002otherwise it defaults to INSTALLPRIVLIB. The same relationship holds
1003for INSTALLSITELIB and INSTALLSITEARCH.
005c1a0e
AD
1004
1005MakeMaker gives you much more freedom than needed to configure
1006internal variables and get different results. It is worth to mention,
1007that make(1) also lets you configure most of the variables that are
1008used in the Makefile. But in the majority of situations this will not
1009be necessary, and should only be done, if the author of a package
1010recommends it.
1011
005c1a0e 1012
8e07c86e 1013=head2 PREFIX attribute
005c1a0e 1014
0d8023a2
PP
1015The PREFIX attribute can be used to set the INSTALL* attributes in one
1016go. The quickest way to install a module in a non-standard place
005c1a0e 1017
8e07c86e 1018 perl Makefile.PL PREFIX=~
005c1a0e 1019
0d8023a2
PP
1020This will replace the string specified by $Config{prefix} in all
1021$Config{install*} values.
005c1a0e
AD
1022
1023Note, that the tilde expansion is done by MakeMaker, not by perl by
8e07c86e 1024default, nor by make.
005c1a0e 1025
005c1a0e
AD
1026If the user has superuser privileges, and is not working on AFS
1027(Andrew File System) or relatives, then the defaults for
8e07c86e 1028INSTALLPRIVLIB, INSTALLARCHLIB, INSTALLBIN, etc. will be appropriate,
005c1a0e
AD
1029and this incantation will be the best:
1030
1031 perl Makefile.PL; make; make test
1032 make install
1033
8e07c86e 1034make install per default writes some documentation of what has been
e05e23b1
PP
1035done into the file C<$(INSTALLARCHLIB)/perllocal.pod>. This feature
1036can be bypassed by calling make pure_install.
8e07c86e
AD
1037
1038=head2 AFS users
1039
1040will have to specify the installation directories as these most
1041probably have changed since perl itself has been installed. They will
1042have to do this by calling
1043
e05e23b1 1044 perl Makefile.PL INSTALLSITELIB=/afs/here/today \
8e07c86e
AD
1045 INSTALLBIN=/afs/there/now INSTALLMAN3DIR=/afs/for/manpages
1046 make
1047
e05e23b1
PP
1048Be careful to repeat this procedure every time you recompile an
1049extension, unless you are sure the AFS installation directories are
1050still valid.
005c1a0e 1051
8e07c86e 1052=head2 Static Linking of a new Perl Binary
005c1a0e
AD
1053
1054An extension that is built with the above steps is ready to use on
1055systems supporting dynamic loading. On systems that do not support
1056dynamic loading, any newly created extension has to be linked together
1057with the available resources. MakeMaker supports the linking process
1058by creating appropriate targets in the Makefile whenever an extension
1059is built. You can invoke the corresponding section of the makefile with
1060
1061 make perl
1062
1063That produces a new perl binary in the current directory with all
e05e23b1
PP
1064extensions linked in that can be found in INST_ARCHLIB , SITELIBEXP,
1065and PERL_ARCHLIB. To do that, MakeMaker writes a new Makefile, on
1066UNIX, this is called Makefile.aperl (may be system dependent). If you
1067want to force the creation of a new perl, it is recommended, that you
1068delete this Makefile.aperl, so the directories are searched-through
1069for linkable libraries again.
005c1a0e
AD
1070
1071The binary can be installed into the directory where perl normally
1072resides on your machine with
1073
1074 make inst_perl
1075
1076To produce a perl binary with a different name than C<perl>, either say
1077
1078 perl Makefile.PL MAP_TARGET=myperl
1079 make myperl
1080 make inst_perl
1081
1082or say
1083
1084 perl Makefile.PL
1085 make myperl MAP_TARGET=myperl
1086 make inst_perl MAP_TARGET=myperl
1087
1088In any case you will be prompted with the correct invocation of the
1089C<inst_perl> target that installs the new binary into INSTALLBIN.
1090
8e07c86e
AD
1091make inst_perl per default writes some documentation of what has been
1092done into the file C<$(INSTALLARCHLIB)/perllocal.pod>. This
1093can be bypassed by calling make pure_inst_perl.
005c1a0e 1094
e05e23b1
PP
1095Warning: the inst_perl: target will most probably overwrite your
1096existing perl binary. Use with care!
005c1a0e 1097
8e07c86e
AD
1098Sometimes you might want to build a statically linked perl although
1099your system supports dynamic loading. In this case you may explicitly
1100set the linktype with the invocation of the Makefile.PL or make:
1101
1102 perl Makefile.PL LINKTYPE=static # recommended
1103
1104or
1105
1106 make LINKTYPE=static # works on most systems
1107
005c1a0e
AD
1108=head2 Determination of Perl Library and Installation Locations
1109
1110MakeMaker needs to know, or to guess, where certain things are
e05e23b1
PP
1111located. Especially INST_LIB and INST_ARCHLIB (where to put the files
1112during the make(1) run), PERL_LIB and PERL_ARCHLIB (where to read
1113existing modules from), and PERL_INC (header files and C<libperl*.*>).
005c1a0e
AD
1114
1115Extensions may be built either using the contents of the perl source
e05e23b1
PP
1116directory tree or from the installed perl library. The recommended way
1117is to build extensions after you have run 'make install' on perl
1118itself. You can do that in any directory on your hard disk that is not
1119below the perl source tree. The support for extensions below the ext
1120directory of the perl distribution is only good for the standard
1121extensions that come with perl.
005c1a0e
AD
1122
1123If an extension is being built below the C<ext/> directory of the perl
e05e23b1
PP
1124source then MakeMaker will set PERL_SRC automatically (e.g.,
1125C<../..>). If PERL_SRC is defined and the extension is recognized as
1126a standard extension, then other variables default to the following:
005c1a0e
AD
1127
1128 PERL_INC = PERL_SRC
1129 PERL_LIB = PERL_SRC/lib
1130 PERL_ARCHLIB = PERL_SRC/lib
1131 INST_LIB = PERL_LIB
1132 INST_ARCHLIB = PERL_ARCHLIB
1133
1134If an extension is being built away from the perl source then MakeMaker
1135will leave PERL_SRC undefined and default to using the installed copy
1136of the perl library. The other variables default to the following:
1137
e05e23b1
PP
1138 PERL_INC = $archlibexp/CORE
1139 PERL_LIB = $privlibexp
1140 PERL_ARCHLIB = $archlibexp
1141 INST_LIB = ./blib/lib
1142 INST_ARCHLIB = ./blib/arch
005c1a0e
AD
1143
1144If perl has not yet been installed then PERL_SRC can be defined on the
1145command line as shown in the previous section.
1146
1147=head2 Useful Default Makefile Macros
1148
1149FULLEXT = Pathname for extension directory (eg DBD/Oracle).
1150
1151BASEEXT = Basename part of FULLEXT. May be just equal FULLEXT.
1152
1153ROOTEXT = Directory part of FULLEXT with leading slash (eg /DBD)
1154
005c1a0e
AD
1155INST_LIBDIR = C<$(INST_LIB)$(ROOTEXT)>
1156
1157INST_AUTODIR = C<$(INST_LIB)/auto/$(FULLEXT)>
1158
1159INST_ARCHAUTODIR = C<$(INST_ARCHLIB)/auto/$(FULLEXT)>
1160
e05e23b1 1161=head2 Using Attributes and Parameters
005c1a0e
AD
1162
1163The following attributes can be specified as arguments to WriteMakefile()
1164or as NAME=VALUE pairs on the command line:
1165
8e07c86e 1166=cut
005c1a0e 1167
864a5fa8 1168# The following "=item C" is used by the attrib_help routine
8e07c86e
AD
1169# likewise the "=back" below. So be careful when changing it!
1170
1171=over 2
1172
864a5fa8 1173=item C
8e07c86e 1174
864a5fa8
AD
1175Ref to array of *.c file names. Initialised from a directory scan
1176and the values portion of the XS attribute hash. This is not
1177currently used by MakeMaker but may be handy in Makefile.PLs.
8e07c86e 1178
864a5fa8 1179=item CONFIG
8e07c86e 1180
864a5fa8
AD
1181Arrayref. E.g. [qw(archname manext)] defines ARCHNAME & MANEXT from
1182config.sh. MakeMaker will add to CONFIG the following values anyway:
1183ar
1184cc
1185cccdlflags
1186ccdlflags
1187dlext
1188dlsrc
1189ld
1190lddlflags
1191ldflags
1192libc
1193lib_ext
1194obj_ext
1195ranlib
e05e23b1
PP
1196sitelibexp
1197sitearchexp
864a5fa8 1198so
8e07c86e
AD
1199
1200=item CONFIGURE
1201
e05e23b1
PP
1202CODE reference. The subroutine should return a hash reference. The
1203hash may contain further attributes, e.g. {LIBS => ...}, that have to
8e07c86e
AD
1204be determined by some evaluation method.
1205
864a5fa8 1206=item DEFINE
8e07c86e 1207
864a5fa8 1208Something like C<"-DHAVE_UNISTD_H">
8e07c86e 1209
864a5fa8 1210=item DIR
8e07c86e 1211
864a5fa8
AD
1212Ref to array of subdirectories containing Makefile.PLs e.g. [ 'sdbm'
1213] in ext/SDBM_File
8e07c86e 1214
864a5fa8 1215=item DISTNAME
8e07c86e 1216
e05e23b1 1217Your name for distributing the package (by tar file). This defaults to
864a5fa8 1218NAME above.
8e07c86e 1219
864a5fa8 1220=item DL_FUNCS
8e07c86e 1221
864a5fa8
AD
1222Hashref of symbol names for routines to be made available as
1223universal symbols. Each key/value pair consists of the package name
1224and an array of routine names in that package. Used only under AIX
1225(export lists) and VMS (linker options) at present. The routine
1226names supplied will be expanded in the same way as XSUB names are
1227expanded by the XS() macro. Defaults to
8e07c86e 1228
864a5fa8 1229 {"$(NAME)" => ["boot_$(NAME)" ] }
8e07c86e 1230
864a5fa8 1231e.g.
8e07c86e 1232
864a5fa8
AD
1233 {"RPC" => [qw( boot_rpcb rpcb_gettime getnetconfigent )],
1234 "NetconfigPtr" => [ 'DESTROY'] }
8e07c86e 1235
864a5fa8 1236=item DL_VARS
8e07c86e 1237
864a5fa8
AD
1238Array of symbol names for variables to be made available as
1239universal symbols. Used only under AIX (export lists) and VMS
1240(linker options) at present. Defaults to []. (e.g. [ qw(
1241Foo_version Foo_numstreams Foo_tree ) ])
8e07c86e 1242
864a5fa8 1243=item EXE_FILES
8e07c86e 1244
864a5fa8
AD
1245Ref to array of executable files. The files will be copied to the
1246INST_EXE directory. Make realclean will delete them from there
1247again.
8e07c86e 1248
864a5fa8
AD
1249=item FIRST_MAKEFILE
1250
1251The name of the Makefile to be produced. Defaults to the contents of
1252MAKEFILE, but can be overridden. This is used for the second Makefile
1253that will be produced for the MAP_TARGET.
1254
1255=item FULLPERL
8e07c86e 1256
864a5fa8
AD
1257Perl binary able to run this extension.
1258
1259=item H
1260
1261Ref to array of *.h file names. Similar to C.
1262
1263=item INC
1264
1265Include file dirs eg: C<"-I/usr/5include -I/path/to/inc">
1266
1267=item INSTALLARCHLIB
1268
e05e23b1
PP
1269Used by 'make install', which copies files from INST_ARCHLIB to this
1270directory if INSTALLDIRS is set to perl.
864a5fa8
AD
1271
1272=item INSTALLBIN
1273
e05e23b1
PP
1274Used by 'make install' which copies files from INST_EXE to this
1275directory.
1276
1277=item INSTALLDIRS
1278
1279Determines which of the two sets of installation directories to
1280choose: installprivlib and installarchlib versus installsitelib and
1281installsitearch. The first pair is chosen with INSTALLDIRS=perl, the
1282second with INSTALLDIRS=site. Default is site.
8e07c86e
AD
1283
1284=item INSTALLMAN1DIR
1285
864a5fa8
AD
1286This directory gets the man pages at 'make install' time. Defaults to
1287$Config{installman1dir}.
1288
8e07c86e
AD
1289=item INSTALLMAN3DIR
1290
864a5fa8
AD
1291This directory gets the man pages at 'make install' time. Defaults to
1292$Config{installman3dir}.
8e07c86e 1293
864a5fa8 1294=item INSTALLPRIVLIB
8e07c86e 1295
e05e23b1
PP
1296Used by 'make install', which copies files from INST_LIB to this
1297directory if INSTALLDIRS is set to perl.
1298
1299=item INSTALLSITELIB
1300
1301Used by 'make install', which copies files from INST_LIB to this
1302directory if INSTALLDIRS is set to site (default).
1303
1304=item INSTALLSITEARCH
1305
1306Used by 'make install', which copies files from INST_ARCHLIB to this
1307directory if INSTALLDIRS is set to site (default).
8e07c86e 1308
864a5fa8 1309=item INST_ARCHLIB
8e07c86e 1310
864a5fa8 1311Same as INST_LIB for architecture dependent files.
8e07c86e 1312
864a5fa8 1313=item INST_EXE
8e07c86e 1314
864a5fa8 1315Directory, where executable scripts should be installed during
e05e23b1
PP
1316'make'. Defaults to "./blib/bin", just to have a dummy location during
1317testing. make install will copy the files in INST_EXE to INSTALLBIN.
8e07c86e 1318
864a5fa8 1319=item INST_LIB
8e07c86e 1320
864a5fa8
AD
1321Directory where we put library files of this extension while building
1322it.
8e07c86e 1323
864a5fa8 1324=item INST_MAN1DIR
8e07c86e 1325
864a5fa8 1326Directory to hold the man pages at 'make' time
8e07c86e 1327
864a5fa8 1328=item INST_MAN3DIR
8e07c86e 1329
864a5fa8 1330Directory to hold the man pages at 'make' time
8e07c86e 1331
864a5fa8 1332=item LDFROM
8e07c86e 1333
864a5fa8
AD
1334defaults to "$(OBJECT)" and is used in the ld command to specify
1335what files to link/load from (also see dynamic_lib below for how to
1336specify ld flags)
8e07c86e 1337
864a5fa8 1338=item LIBPERL_A
8e07c86e 1339
864a5fa8
AD
1340The filename of the perllibrary that will be used together with this
1341extension. Defaults to libperl.a.
8e07c86e
AD
1342
1343=item LIBS
1344
1345An anonymous array of alternative library
1346specifications to be searched for (in order) until
864a5fa8 1347at least one library is found. E.g.
8e07c86e
AD
1348
1349 'LIBS' => ["-lgdbm", "-ldbm -lfoo", "-L/path -ldbm.nfs"]
1350
1351Mind, that any element of the array
1352contains a complete set of arguments for the ld
1353command. So do not specify
1354
1355 'LIBS' => ["-ltcl", "-ltk", "-lX11"]
1356
1357See ODBM_File/Makefile.PL for an example, where an array is needed. If
1358you specify a scalar as in
1359
1360 'LIBS' => "-ltcl -ltk -lX11"
1361
1362MakeMaker will turn it into an array with one element.
1363
864a5fa8 1364=item LINKTYPE
8e07c86e 1365
e05e23b1
PP
1366'static' or 'dynamic' (default unless usedl=undef in
1367config.sh). Should only be used to force static linking (also see
864a5fa8 1368linkext below).
8e07c86e 1369
864a5fa8 1370=item MAKEAPERL
8e07c86e 1371
864a5fa8
AD
1372Boolean which tells MakeMaker, that it should include the rules to
1373make a perl. This is handled automatically as a switch by
1374MakeMaker. The user normally does not need it.
8e07c86e 1375
864a5fa8 1376=item MAKEFILE
8e07c86e 1377
864a5fa8 1378The name of the Makefile to be produced.
8e07c86e 1379
864a5fa8 1380=item MAN1PODS
8e07c86e 1381
864a5fa8
AD
1382Hashref of pod-containing files. MakeMaker will default this to all
1383EXE_FILES files that include POD directives. The files listed
1384here will be converted to man pages and installed as was requested
1385at Configure time.
8e07c86e 1386
864a5fa8 1387=item MAN3PODS
8e07c86e 1388
864a5fa8
AD
1389Hashref of .pm and .pod files. MakeMaker will default this to all
1390 .pod and any .pm files that include POD directives. The files listed
1391here will be converted to man pages and installed as was requested
1392at Configure time.
8e07c86e 1393
864a5fa8 1394=item MAP_TARGET
8e07c86e 1395
864a5fa8
AD
1396If it is intended, that a new perl binary be produced, this variable
1397may hold a name for that binary. Defaults to perl
8e07c86e 1398
864a5fa8 1399=item MYEXTLIB
4633a7c4 1400
864a5fa8
AD
1401If the extension links to a library that it builds set this to the
1402name of the library (see SDBM_File)
4633a7c4 1403
864a5fa8 1404=item NAME
8e07c86e 1405
864a5fa8
AD
1406Perl module name for this extension (DBD::Oracle). This will default
1407to the directory name but should be explicitly defined in the
1408Makefile.PL.
8e07c86e 1409
864a5fa8 1410=item NEEDS_LINKING
8e07c86e 1411
864a5fa8
AD
1412MakeMaker will figure out, if an extension contains linkable code
1413anywhere down the directory tree, and will set this variable
1414accordingly, but you can speed it up a very little bit, if you define
1415this boolean variable yourself.
8e07c86e 1416
e05e23b1
PP
1417=item NOECHO
1418
1419Defaults the C<@>. By setting it to an empty string you can generate a
1420Makefile that echos all commands. Mainly used in debugging MakeMaker
1421itself.
1422
864a5fa8 1423=item NORECURS
8e07c86e 1424
e05e23b1 1425Boolean. Attribute to inhibit descending into subdirectories.
8e07c86e 1426
864a5fa8 1427=item OBJECT
8e07c86e 1428
864a5fa8
AD
1429List of object files, defaults to '$(BASEEXT)$(OBJ_EXT)', but can be a long
1430string containing all object files, e.g. "tkpBind.o
1431tkpButton.o tkpCanvas.o"
8e07c86e 1432
864a5fa8 1433=item PERL
8e07c86e 1434
864a5fa8 1435Perl binary for tasks that can be done by miniperl
8e07c86e 1436
864a5fa8 1437=item PERLMAINCC
005c1a0e 1438
864a5fa8
AD
1439The call to the program that is able to compile perlmain.c. Defaults
1440to $(CC).
005c1a0e 1441
864a5fa8 1442=item PERL_ARCHLIB
005c1a0e 1443
864a5fa8 1444Same as above for architecture dependent files
8e07c86e 1445
864a5fa8 1446=item PERL_LIB
8e07c86e 1447
864a5fa8 1448Directory containing the Perl library to use.
8e07c86e 1449
864a5fa8 1450=item PERL_SRC
8e07c86e 1451
864a5fa8
AD
1452Directory containing the Perl source code (use of this should be
1453avoided, it may be undefined)
8e07c86e 1454
864a5fa8 1455=item PL_FILES
8e07c86e 1456
864a5fa8
AD
1457Ref to hash of files to be processed as perl programs. MakeMaker
1458will default to any found *.PL file (except Makefile.PL) being keys
1459and the basename of the file being the value. E.g.
8e07c86e 1460
864a5fa8 1461 {'foobar.PL' => 'foobar'}
8e07c86e 1462
864a5fa8
AD
1463The *.PL files are expected to produce output to the target files
1464themselves.
8e07c86e 1465
864a5fa8 1466=item PM
8e07c86e 1467
864a5fa8 1468Hashref of .pm files and *.pl files to be installed. e.g.
8e07c86e 1469
864a5fa8 1470 {'name_of_file.pm' => '$(INST_LIBDIR)/install_as.pm'}
8e07c86e 1471
864a5fa8
AD
1472By default this will include *.pm and *.pl. If a lib directory
1473exists and is not listed in DIR (above) then any *.pm and *.pl files
1474it contains will also be included by default. Defining PM in the
1475Makefile.PL will override PMLIBDIRS.
8e07c86e 1476
864a5fa8 1477=item PMLIBDIRS
8e07c86e 1478
864a5fa8
AD
1479Ref to array of subdirectories containing library files. Defaults to
1480[ 'lib', $(BASEEXT) ]. The directories will be scanned and any files
1481they contain will be installed in the corresponding location in the
1482library. A libscan() method can be used to alter the behaviour.
1483Defining PM in the Makefile.PL will override PMLIBDIRS.
8e07c86e 1484
864a5fa8 1485=item PREFIX
8e07c86e 1486
864a5fa8 1487Can be used to set the three INSTALL* attributes in one go (except for
e05e23b1
PP
1488probably INSTALLMAN1DIR, if it is not below PREFIX according to
1489%Config). They will have PREFIX as a common directory node and will
1490branch from that node into lib/, lib/ARCHNAME or whatever Configure
1491decided at the build time of your perl (unless you override one of
1492them, of course).
8e07c86e 1493
864a5fa8 1494=item PREREQ
8e07c86e 1495
864a5fa8
AD
1496Placeholder, not yet implemented. Will eventually be a hashref: Names
1497of modules that need to be available to run this extension (e.g. Fcntl
1498for SDBM_File) are the keys of the hash and the desired version is the
1499value. Needs further evaluation, should probably allow to define
1500prerequisites among header files, libraries, perl version, etc.
8e07c86e 1501
864a5fa8 1502=item SKIP
8e07c86e 1503
864a5fa8
AD
1504Arryref. E.g. [qw(name1 name2)] skip (do not write) sections of the
1505Makefile
8e07c86e 1506
864a5fa8 1507=item TYPEMAPS
8e07c86e 1508
864a5fa8
AD
1509Ref to array of typemap file names. Use this when the typemaps are
1510in some directory other than the current directory or when they are
1511not named B<typemap>. The last typemap in the list takes
1512precedence. A typemap in the current directory has highest
1513precedence, even if it isn't listed in TYPEMAPS. The default system
1514typemap has lowest precedence.
8e07c86e 1515
864a5fa8 1516=item VERSION
8e07c86e 1517
864a5fa8
AD
1518Your version number for distributing the package. This defaults to
15190.1.
8e07c86e 1520
0d8023a2
PP
1521=item VERSION_FROM
1522
1523Instead of specifying the VERSION in the Makefile.PL you can let
1524MakeMaker parse a file to determine the version number. The parsing
1525routine requires that the file named by VERSION_FROM contains one
1526single line to compute the version number. The first line in the file
1527that contains the regular expression
1528
1529 /(\$[\w:]*\bVERSION)\b.*=/
1530
1531will be evaluated with eval() and the value of the named variable
1532B<after> the eval() will be assigned to the VERSION attribute of the
1533MakeMaker object. The following lines will be parsed o.k.:
1534
1535 $VERSION = '1.00';
e05e23b1 1536 ( $VERSION ) = '$Revision: 1.174 $ ' =~ /\$Revision:\s+([^\s]+)/;
0d8023a2
PP
1537 $FOO::VERSION = '1.10';
1538
1539but these will fail:
1540
1541 my $VERSION = '1.01';
1542 local $VERSION = '1.02';
1543 local $FOO::VERSION = '1.30';
1544
1545The file named in VERSION_FROM is added as a dependency to Makefile to
1546guarantee, that the Makefile contains the correct VERSION macro after
1547a change of the file.
1548
864a5fa8 1549=item XS
8e07c86e 1550
864a5fa8 1551Hashref of .xs files. MakeMaker will default this. e.g.
8e07c86e 1552
864a5fa8 1553 {'name_of_file.xs' => 'name_of_file.c'}
8e07c86e 1554
864a5fa8
AD
1555The .c files will automatically be included in the list of files
1556deleted by a make clean.
4633a7c4 1557
864a5fa8 1558=item XSOPT
8e07c86e 1559
864a5fa8
AD
1560String of options to pass to xsubpp. This might include C<-C++> or
1561C<-extern>. Do not include typemaps here; the TYPEMAP parameter exists for
1562that purpose.
8e07c86e 1563
864a5fa8 1564=item XSPROTOARG
4633a7c4 1565
4e68a208 1566May be set to an empty string, which is identical to C<-prototypes>, or
864a5fa8 1567C<-noprototypes>. See the xsubpp documentation for details. MakeMaker
4e68a208
AD
1568defaults to the empty string.
1569
0d8023a2
PP
1570=item XS_VERSION
1571
1572Your version number for the .xs file of this package. This defaults
1573to the value of the VERSION attribute.
1574
8e07c86e
AD
1575=back
1576
1577=head2 Additional lowercase attributes
1578
1579can be used to pass parameters to the methods which implement that
1580part of the Makefile. These are not normally required:
1581
1582=over 2
1583
864a5fa8 1584=item clean
8e07c86e 1585
864a5fa8
AD
1586 {FILES => "*.xyz foo"}
1587
c07a80fd
PP
1588=item depend
1589
1590 {ANY_TARGET => ANY_DEPENDECY, ...}
1591
864a5fa8
AD
1592=item dist
1593
1594 {TARFLAGS => 'cvfF', COMPRESS => 'gzip', SUFFIX => 'gz',
1595 SHAR => 'shar -m', DIST_CP => 'ln'}
1596
1597If you specify COMPRESS, then SUFFIX should also be altered, as it is
1598needed to tell make the target file of the compression. Setting
1599DIST_CP to ln can be useful, if you need to preserve the timestamps on
1600your files. DIST_CP can take the values 'cp', which copies the file,
1601'ln', which links the file, and 'best' which copies symbolic links and
1602links the rest. Default is 'best'.
1603
1604=item dynamic_lib
1605
0d8023a2 1606 {ARMAYBE => 'ar', OTHERLDFLAGS => '...', INST_DYNAMIC_DEP => '...'}
8e07c86e
AD
1607
1608=item installpm
1609
1610 {SPLITLIB => '$(INST_LIB)' (default) or '$(INST_ARCHLIB)'}
1611
1612=item linkext
1613
1614 {LINKTYPE => 'static', 'dynamic' or ''}
1615
864a5fa8 1616NB: Extensions that have nothing but *.pm files had to say
8e07c86e
AD
1617
1618 {LINKTYPE => ''}
1619
864a5fa8
AD
1620with Pre-5.0 MakeMakers. Since version 5.00 of MakeMaker such a line
1621can be deleted safely. MakeMaker recognizes, when there's nothing to
1622be linked.
8e07c86e 1623
864a5fa8 1624=item macro
8e07c86e 1625
864a5fa8 1626 {ANY_MACRO => ANY_VALUE, ...}
8e07c86e
AD
1627
1628=item realclean
1629
1630 {FILES => '$(INST_ARCHAUTODIR)/*.xyz'}
1631
8e07c86e
AD
1632=item tool_autosplit
1633
1634 {MAXLEN =E<gt> 8}
005c1a0e
AD
1635
1636=back
1637
8e07c86e
AD
1638=cut
1639
1640# bug in pod2html, so leave the =back
1641
1642# Don't delete this cut, MM depends on it!
1643
005c1a0e
AD
1644=head2 Overriding MakeMaker Methods
1645
1646If you cannot achieve the desired Makefile behaviour by specifying
1647attributes you may define private subroutines in the Makefile.PL.
1648Each subroutines returns the text it wishes to have written to
1649the Makefile. To override a section of the Makefile you can
1650either say:
1651
1652 sub MY::c_o { "new literal text" }
1653
1654or you can edit the default by saying something like:
1655
8e07c86e
AD
1656 sub MY::c_o {
1657 my $self = shift;
1658 local *c_o;
1659 $_=$self->MM::c_o;
1660 s/old text/new text/;
1661 $_;
1662 }
1663
1664Both methods above are available for backwards compatibility with
1665older Makefile.PLs.
005c1a0e
AD
1666
1667If you still need a different solution, try to develop another
1668subroutine, that fits your needs and submit the diffs to
8e07c86e 1669F<perl5-porters@nicoh.com> or F<comp.lang.perl.misc> as appropriate.
005c1a0e
AD
1670
1671=head2 Distribution Support
1672
1673For authors of extensions MakeMaker provides several Makefile
1674targets. Most of the support comes from the ExtUtils::Manifest module,
1675where additional documentation can be found.
1676
1677=over 4
1678
1679=item make distcheck
8e07c86e 1680
005c1a0e
AD
1681reports which files are below the build directory but not in the
1682MANIFEST file and vice versa. (See ExtUtils::Manifest::fullcheck() for
1683details)
1684
4633a7c4
LW
1685=item make skipcheck
1686
1687reports which files are skipped due to the entries in the
1688C<MANIFEST.SKIP> file (See ExtUtils::Manifest::skipcheck() for
1689details)
1690
005c1a0e 1691=item make distclean
8e07c86e 1692
005c1a0e
AD
1693does a realclean first and then the distcheck. Note that this is not
1694needed to build a new distribution as long as you are sure, that the
1695MANIFEST file is ok.
1696
1697=item make manifest
8e07c86e 1698
005c1a0e
AD
1699rewrites the MANIFEST file, adding all remaining files found (See
1700ExtUtils::Manifest::mkmanifest() for details)
1701
1702=item make distdir
8e07c86e 1703
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1704Copies all the files that are in the MANIFEST file to a newly created
1705directory with the name C<$(DISTNAME)-$(VERSION)>. If that directory
1706exists, it will be removed first.
1707
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1708=item make disttest
1709
1710Makes a distdir first, and runs a C<perl Makefile.PL>, a make, and
4633a7c4 1711a make test in that directory.
8e07c86e 1712
005c1a0e 1713=item make tardist
8e07c86e 1714
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1715First does a command $(PREOP) which defaults to a null command. Does a
1716distdir next and runs C<tar> on that directory into a tarfile. Then
1717deletes the distdir. Finishes with a command $(POSTOP) which defaults
1718to a null command.
1719
1720=item make dist
8e07c86e 1721
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1722Defaults to $(DIST_DEFAULT) which in turn defaults to tardist.
1723
1724=item make uutardist
8e07c86e 1725
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1726Runs a tardist first and uuencodes the tarfile.
1727
1728=item make shdist
8e07c86e 1729
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1730First does a command $(PREOP) which defaults to a null command. Does a
1731distdir next and runs C<shar> on that directory into a sharfile. Then
1732deletes the distdir. Finishes with a command $(POSTOP) which defaults
1733to a null command. Note: For shdist to work properly a C<shar>
1734program that can handle directories is mandatory.
1735
1736=item make ci
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1737
1738Does a $(CI) and a $(RCS_LABEL) on all files in the MANIFEST file.
1739
1740=back
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1741
1742Customization of the dist targets can be done by specifying a hash
1743reference to the dist attribute of the WriteMakefile call. The
1744following parameters are recognized:
1745
8e07c86e 1746 CI ('ci -u')
005c1a0e 1747 COMPRESS ('compress')
005c1a0e 1748 POSTOP ('@ :')
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1749 PREOP ('@ :')
1750 RCS_LABEL ('rcs -q -Nv$(VERSION_SYM):')
1751 SHAR ('shar')
1752 SUFFIX ('Z')
1753 TAR ('tar')
1754 TARFLAGS ('cvf')
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1755
1756An example:
1757
1758 WriteMakefile( 'dist' => { COMPRESS=>"gzip", SUFFIX=>"gz" })
1759
005c1a0e 1760
e05e23b1 1761=head1 AUTHORS
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1762
1763Andy Dougherty F<E<lt>doughera@lafcol.lafayette.eduE<gt>>, Andreas
8e07c86e 1764KE<ouml>nig F<E<lt>A.Koenig@franz.ww.TU-Berlin.DEE<gt>>, Tim Bunce
fed7345c 1765F<E<lt>Tim.Bunce@ig.co.ukE<gt>>. VMS support by Charles Bailey
a5f75d66 1766F<E<lt>bailey@genetics.upenn.eduE<gt>>. OS/2 support by Ilya
e05e23b1
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1767Zakharevich F<E<lt>ilya@math.ohio-state.eduE<gt>>. Contact the
1768makemaker mailing list C<mailto:makemaker@franz.ww.tu-berlin.de>, if
1769you have any questions.
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1770
1771=head1 MODIFICATION HISTORY
1772
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1773For a more complete documentation see the file Changes in the
1774MakeMaker distribution package.
e50aee73 1775
005c1a0e 1776=head1 TODO
f06db76b 1777
8e07c86e 1778See the file Todo in the MakeMaker distribution package.
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1779
1780=cut