source: for-distributions/trunk/bin/windows/perl/lib/ExtUtils/Liblist/Kid.pm@ 14489

Last change on this file since 14489 was 14489, checked in by oranfry, 17 years ago

upgrading to perl 5.8
File size: 18.6 KB
Line 
1package ExtUtils::Liblist::Kid;
2
3# XXX Splitting this out into its own .pm is a temporary solution.
4
5# This kid package is to be used by MakeMaker. It will not work if
6# $self is not a Makemaker.
7
8use 5.00503;
9# Broken out of MakeMaker from version 4.11
10
11use strict;
12use vars qw($VERSION);
13$VERSION = 1.30;
14
15use Config;
16use Cwd 'cwd';
17use File::Basename;
18use File::Spec;
19
20sub ext {
21 if ($^O eq 'VMS') { return &_vms_ext; }
22 elsif($^O eq 'MSWin32') { return &_win32_ext; }
23 else { return &_unix_os2_ext; }
24}
25
26sub _unix_os2_ext {
27 my($self,$potential_libs, $verbose, $give_libs) = @_;
28 $verbose ||= 0;
29
30 if ($^O =~ 'os2' and $Config{perllibs}) {
31 # Dynamic libraries are not transitive, so we may need including
32 # the libraries linked against perl.dll again.
33
34 $potential_libs .= " " if $potential_libs;
35 $potential_libs .= $Config{perllibs};
36 }
37 return ("", "", "", "", ($give_libs ? [] : ())) unless $potential_libs;
38 warn "Potential libraries are '$potential_libs':\n" if $verbose;
39
40 my($so) = $Config{so};
41 my($libs) = defined $Config{perllibs} ? $Config{perllibs} : $Config{libs};
42 my $Config_libext = $Config{lib_ext} || ".a";
43
44
45 # compute $extralibs, $bsloadlibs and $ldloadlibs from
46 # $potential_libs
47 # this is a rewrite of Andy Dougherty's extliblist in perl
48
49 my(@searchpath); # from "-L/path" entries in $potential_libs
50 my(@libpath) = split " ", $Config{'libpth'};
51 my(@ldloadlibs, @bsloadlibs, @extralibs, @ld_run_path, %ld_run_path_seen);
52 my(@libs, %libs_seen);
53 my($fullname, $thislib, $thispth, @fullname);
54 my($pwd) = cwd(); # from Cwd.pm
55 my($found) = 0;
56
57 foreach $thislib (split ' ', $potential_libs){
58
59 # Handle possible linker path arguments.
60 if ($thislib =~ s/^(-[LR]|-Wl,-R)//){ # save path flag type
61 my($ptype) = $1;
62 unless (-d $thislib){
63 warn "$ptype$thislib ignored, directory does not exist\n"
64 if $verbose;
65 next;
66 }
67 my($rtype) = $ptype;
68 if (($ptype eq '-R') or ($ptype eq '-Wl,-R')) {
69 if ($Config{'lddlflags'} =~ /-Wl,-R/) {
70 $rtype = '-Wl,-R';
71 } elsif ($Config{'lddlflags'} =~ /-R/) {
72 $rtype = '-R';
73 }
74 }
75 unless (File::Spec->file_name_is_absolute($thislib)) {
76 warn "Warning: $ptype$thislib changed to $ptype$pwd/$thislib\n";
77 $thislib = $self->catdir($pwd,$thislib);
78 }
79 push(@searchpath, $thislib);
80 push(@extralibs, "$ptype$thislib");
81 push(@ldloadlibs, "$rtype$thislib");
82 next;
83 }
84
85 # Handle possible library arguments.
86 unless ($thislib =~ s/^-l//){
87 warn "Unrecognized argument in LIBS ignored: '$thislib'\n";
88 next;
89 }
90
91 my($found_lib)=0;
92 foreach $thispth (@searchpath, @libpath){
93
94 # Try to find the full name of the library. We need this to
95 # determine whether it's a dynamically-loadable library or not.
96 # This tends to be subject to various os-specific quirks.
97 # For gcc-2.6.2 on linux (March 1995), DLD can not load
98 # .sa libraries, with the exception of libm.sa, so we
99 # deliberately skip them.
100 if (@fullname =
101 $self->lsdir($thispth,"^\Qlib$thislib.$so.\E[0-9]+")){
102 # Take care that libfoo.so.10 wins against libfoo.so.9.
103 # Compare two libraries to find the most recent version
104 # number. E.g. if you have libfoo.so.9.0.7 and
105 # libfoo.so.10.1, first convert all digits into two
106 # decimal places. Then we'll add ".00" to the shorter
107 # strings so that we're comparing strings of equal length
108 # Thus we'll compare libfoo.so.09.07.00 with
109 # libfoo.so.10.01.00. Some libraries might have letters
110 # in the version. We don't know what they mean, but will
111 # try to skip them gracefully -- we'll set any letter to
112 # '0'. Finally, sort in reverse so we can take the
113 # first element.
114
115 #TODO: iterate through the directory instead of sorting
116
117 $fullname = "$thispth/" .
118 (sort { my($ma) = $a;
119 my($mb) = $b;
120 $ma =~ tr/A-Za-z/0/s;
121 $ma =~ s/\b(\d)\b/0$1/g;
122 $mb =~ tr/A-Za-z/0/s;
123 $mb =~ s/\b(\d)\b/0$1/g;
124 while (length($ma) < length($mb)) { $ma .= ".00"; }
125 while (length($mb) < length($ma)) { $mb .= ".00"; }
126 # Comparison deliberately backwards
127 $mb cmp $ma;} @fullname)[0];
128 } elsif (-f ($fullname="$thispth/lib$thislib.$so")
129 && (($Config{'dlsrc'} ne "dl_dld.xs") || ($thislib eq "m"))){
130 } elsif (-f ($fullname="$thispth/lib${thislib}_s$Config_libext")
131 && (! $Config{'archname'} =~ /RM\d\d\d-svr4/)
132 && ($thislib .= "_s") ){ # we must explicitly use _s version
133 } elsif (-f ($fullname="$thispth/lib$thislib$Config_libext")){
134 } elsif (-f ($fullname="$thispth/$thislib$Config_libext")){
135 } elsif (-f ($fullname="$thispth/lib$thislib.dll$Config_libext")){
136 } elsif (-f ($fullname="$thispth/Slib$thislib$Config_libext")){
137 } elsif ($^O eq 'dgux'
138 && -l ($fullname="$thispth/lib$thislib$Config_libext")
139 && readlink($fullname) =~ /^elink:/s) {
140 # Some of DG's libraries look like misconnected symbolic
141 # links, but development tools can follow them. (They
142 # look like this:
143 #
144 # libm.a -> elink:${SDE_PATH:-/usr}/sde/\
145 # ${TARGET_BINARY_INTERFACE:-m88kdgux}/usr/lib/libm.a
146 #
147 # , the compilation tools expand the environment variables.)
148 } else {
149 warn "$thislib not found in $thispth\n" if $verbose;
150 next;
151 }
152 warn "'-l$thislib' found at $fullname\n" if $verbose;
153 push @libs, $fullname unless $libs_seen{$fullname}++;
154 $found++;
155 $found_lib++;
156
157 # Now update library lists
158
159 # what do we know about this library...
160 my $is_dyna = ($fullname !~ /\Q$Config_libext\E\z/);
161 my $in_perl = ($libs =~ /\B-l\Q${thislib}\E\b/s);
162
163 # include the path to the lib once in the dynamic linker path
164 # but only if it is a dynamic lib and not in Perl itself
165 my($fullnamedir) = dirname($fullname);
166 push @ld_run_path, $fullnamedir
167 if $is_dyna && !$in_perl &&
168 !$ld_run_path_seen{$fullnamedir}++;
169
170 # Do not add it into the list if it is already linked in
171 # with the main perl executable.
172 # We have to special-case the NeXT, because math and ndbm
173 # are both in libsys_s
174 unless ($in_perl ||
175 ($Config{'osname'} eq 'next' &&
176 ($thislib eq 'm' || $thislib eq 'ndbm')) ){
177 push(@extralibs, "-l$thislib");
178 }
179
180 # We might be able to load this archive file dynamically
181 if ( ($Config{'dlsrc'} =~ /dl_next/ && $Config{'osvers'} lt '4_0')
182 || ($Config{'dlsrc'} =~ /dl_dld/) )
183 {
184 # We push -l$thislib instead of $fullname because
185 # it avoids hardwiring a fixed path into the .bs file.
186 # Mkbootstrap will automatically add dl_findfile() to
187 # the .bs file if it sees a name in the -l format.
188 # USE THIS, when dl_findfile() is fixed:
189 # push(@bsloadlibs, "-l$thislib");
190 # OLD USE WAS while checking results against old_extliblist
191 push(@bsloadlibs, "$fullname");
192 } else {
193 if ($is_dyna){
194 # For SunOS4, do not add in this shared library if
195 # it is already linked in the main perl executable
196 push(@ldloadlibs, "-l$thislib")
197 unless ($in_perl and $^O eq 'sunos');
198 } else {
199 push(@ldloadlibs, "-l$thislib");
200 }
201 }
202 last; # found one here so don't bother looking further
203 }
204 warn "Note (probably harmless): "
205 ."No library found for -l$thislib\n"
206 unless $found_lib>0;
207 }
208
209 unless( $found ) {
210 return ('','','','', ($give_libs ? \@libs : ()));
211 }
212 else {
213 return ("@extralibs", "@bsloadlibs", "@ldloadlibs",
214 join(":",@ld_run_path), ($give_libs ? \@libs : ()));
215 }
216}
217
218sub _win32_ext {
219
220 require Text::ParseWords;
221
222 my($self, $potential_libs, $verbose, $give_libs) = @_;
223 $verbose ||= 0;
224
225 # If user did not supply a list, we punt.
226 # (caller should probably use the list in $Config{libs})
227 return ("", "", "", "", ($give_libs ? [] : ())) unless $potential_libs;
228
229 my $cc = $Config{cc};
230 my $VC = $cc =~ /^cl/i;
231 my $BC = $cc =~ /^bcc/i;
232 my $GC = $cc =~ /^gcc/i;
233 my $so = $Config{'so'};
234 my $libs = $Config{'perllibs'};
235 my $libpth = $Config{'libpth'};
236 my $libext = $Config{'lib_ext'} || ".lib";
237 my(@libs, %libs_seen);
238
239 if ($libs and $potential_libs !~ /:nodefault/i) {
240 # If Config.pm defines a set of default libs, we always
241 # tack them on to the user-supplied list, unless the user
242 # specified :nodefault
243
244 $potential_libs .= " " if $potential_libs;
245 $potential_libs .= $libs;
246 }
247 warn "Potential libraries are '$potential_libs':\n" if $verbose;
248
249 # normalize to forward slashes
250 $libpth =~ s,\\,/,g;
251 $potential_libs =~ s,\\,/,g;
252
253 # compute $extralibs from $potential_libs
254
255 my @searchpath; # from "-L/path" in $potential_libs
256 my @libpath = Text::ParseWords::quotewords('\s+', 0, $libpth);
257 my @extralibs;
258 my $pwd = cwd(); # from Cwd.pm
259 my $lib = '';
260 my $found = 0;
261 my $search = 1;
262 my($fullname, $thislib, $thispth);
263
264 # add "$Config{installarchlib}/CORE" to default search path
265 push @libpath, "$Config{installarchlib}/CORE";
266
267 if ($VC and exists $ENV{LIB} and $ENV{LIB}) {
268 push @libpath, split /;/, $ENV{LIB};
269 }
270
271 foreach (Text::ParseWords::quotewords('\s+', 0, $potential_libs)){
272
273 $thislib = $_;
274
275 # see if entry is a flag
276 if (/^:\w+$/) {
277 $search = 0 if lc eq ':nosearch';
278 $search = 1 if lc eq ':search';
279 warn "Ignoring unknown flag '$thislib'\n"
280 if $verbose and !/^:(no)?(search|default)$/i;
281 next;
282 }
283
284 # if searching is disabled, do compiler-specific translations
285 unless ($search) {
286 s/^-l(.+)$/$1.lib/ unless $GC;
287 s/^-L/-libpath:/ if $VC;
288 push(@extralibs, $_);
289 $found++;
290 next;
291 }
292
293 # handle possible linker path arguments
294 if (s/^-L// and not -d) {
295 warn "$thislib ignored, directory does not exist\n"
296 if $verbose;
297 next;
298 }
299 elsif (-d) {
300 unless (File::Spec->file_name_is_absolute($_)) {
301 warn "Warning: '$thislib' changed to '-L$pwd/$_'\n";
302 $_ = $self->catdir($pwd,$_);
303 }
304 push(@searchpath, $_);
305 next;
306 }
307
308 # handle possible library arguments
309 if (s/^-l// and $GC and !/^lib/i) {
310 $_ = "lib$_";
311 }
312 $_ .= $libext if !/\Q$libext\E$/i;
313
314 my $secondpass = 0;
315 LOOKAGAIN:
316
317 # look for the file itself
318 if (-f) {
319 warn "'$thislib' found as '$_'\n" if $verbose;
320 $found++;
321 push(@extralibs, $_);
322 next;
323 }
324
325 my $found_lib = 0;
326 foreach $thispth (@searchpath, @libpath){
327 unless (-f ($fullname="$thispth\\$_")) {
328 warn "'$thislib' not found as '$fullname'\n" if $verbose;
329 next;
330 }
331 warn "'$thislib' found as '$fullname'\n" if $verbose;
332 $found++;
333 $found_lib++;
334 push(@extralibs, $fullname);
335 push @libs, $fullname unless $libs_seen{$fullname}++;
336 last;
337 }
338
339 # do another pass with (or without) leading 'lib' if they used -l
340 if (!$found_lib and $thislib =~ /^-l/ and !$secondpass++) {
341 if ($GC) {
342 goto LOOKAGAIN if s/^lib//i;
343 }
344 elsif (!/^lib/i) {
345 $_ = "lib$_";
346 goto LOOKAGAIN;
347 }
348 }
349
350 # give up
351 warn "Note (probably harmless): "
352 ."No library found for $thislib\n"
353 unless $found_lib>0;
354
355 }
356
357 return ('','','','', ($give_libs ? \@libs : ())) unless $found;
358
359 # make sure paths with spaces are properly quoted
360 @extralibs = map { (/\s/ && !/^".*"$/) ? qq["$_"] : $_ } @extralibs;
361 @libs = map { (/\s/ && !/^".*"$/) ? qq["$_"] : $_ } @libs;
362 $lib = join(' ',@extralibs);
363
364 # normalize back to backward slashes (to help braindead tools)
365 # XXX this may break equally braindead GNU tools that don't understand
366 # backslashes, either. Seems like one can't win here. Cursed be CP/M.
367 $lib =~ s,/,\\,g;
368
369 warn "Result: $lib\n" if $verbose;
370 wantarray ? ($lib, '', $lib, '', ($give_libs ? \@libs : ())) : $lib;
371}
372
373
374sub _vms_ext {
375 my($self, $potential_libs,$verbose,$give_libs) = @_;
376 $verbose ||= 0;
377
378 my(@crtls,$crtlstr);
379 my($dbgqual) = $self->{OPTIMIZE} || $Config{'optimize'} ||
380 $self->{CCFLAGS} || $Config{'ccflags'};
381 @crtls = ( ($dbgqual =~ m-/Debug-i ? $Config{'dbgprefix'} : '')
382 . 'PerlShr/Share' );
383 push(@crtls, grep { not /\(/ } split /\s+/, $Config{'perllibs'});
384 push(@crtls, grep { not /\(/ } split /\s+/, $Config{'libc'});
385 # In general, we pass through the basic libraries from %Config unchanged.
386 # The one exception is that if we're building in the Perl source tree, and
387 # a library spec could be resolved via a logical name, we go to some trouble
388 # to insure that the copy in the local tree is used, rather than one to
389 # which a system-wide logical may point.
390 if ($self->{PERL_SRC}) {
391 my($lib,$locspec,$type);
392 foreach $lib (@crtls) {
393 if (($locspec,$type) = $lib =~ m-^([\w$\-]+)(/\w+)?- and $locspec =~ /perl/i) {
394 if (lc $type eq '/share') { $locspec .= $Config{'exe_ext'}; }
395 elsif (lc $type eq '/library') { $locspec .= $Config{'lib_ext'}; }
396 else { $locspec .= $Config{'obj_ext'}; }
397 $locspec = $self->catfile($self->{PERL_SRC},$locspec);
398 $lib = "$locspec$type" if -e $locspec;
399 }
400 }
401 }
402 $crtlstr = @crtls ? join(' ',@crtls) : '';
403
404 unless ($potential_libs) {
405 warn "Result:\n\tEXTRALIBS: \n\tLDLOADLIBS: $crtlstr\n" if $verbose;
406 return ('', '', $crtlstr, '', ($give_libs ? [] : ()));
407 }
408
409 my(@dirs,@libs,$dir,$lib,%found,@fndlibs,$ldlib);
410 my $cwd = cwd();
411 my($so,$lib_ext,$obj_ext) = @Config{'so','lib_ext','obj_ext'};
412 # List of common Unix library names and their VMS equivalents
413 # (VMS equivalent of '' indicates that the library is automatically
414 # searched by the linker, and should be skipped here.)
415 my(@flibs, %libs_seen);
416 my %libmap = ( 'm' => '', 'f77' => '', 'F77' => '', 'V77' => '', 'c' => '',
417 'malloc' => '', 'crypt' => '', 'resolv' => '', 'c_s' => '',
418 'socket' => '', 'X11' => 'DECW$XLIBSHR',
419 'Xt' => 'DECW$XTSHR', 'Xm' => 'DECW$XMLIBSHR',
420 'Xmu' => 'DECW$XMULIBSHR');
421 if ($Config{'vms_cc_type'} ne 'decc') { $libmap{'curses'} = 'VAXCCURSE'; }
422
423 warn "Potential libraries are '$potential_libs'\n" if $verbose;
424
425 # First, sort out directories and library names in the input
426 foreach $lib (split ' ',$potential_libs) {
427 push(@dirs,$1), next if $lib =~ /^-L(.*)/;
428 push(@dirs,$lib), next if $lib =~ /[:>\]]$/;
429 push(@dirs,$lib), next if -d $lib;
430 push(@libs,$1), next if $lib =~ /^-l(.*)/;
431 push(@libs,$lib);
432 }
433 push(@dirs,split(' ',$Config{'libpth'}));
434
435 # Now make sure we've got VMS-syntax absolute directory specs
436 # (We don't, however, check whether someone's hidden a relative
437 # path in a logical name.)
438 foreach $dir (@dirs) {
439 unless (-d $dir) {
440 warn "Skipping nonexistent Directory $dir\n" if $verbose > 1;
441 $dir = '';
442 next;
443 }
444 warn "Resolving directory $dir\n" if $verbose;
445 if (File::Spec->file_name_is_absolute($dir)) {
446 $dir = $self->fixpath($dir,1);
447 }
448 else {
449 $dir = $self->catdir($cwd,$dir);
450 }
451 }
452 @dirs = grep { length($_) } @dirs;
453 unshift(@dirs,''); # Check each $lib without additions first
454
455 LIB: foreach $lib (@libs) {
456 if (exists $libmap{$lib}) {
457 next unless length $libmap{$lib};
458 $lib = $libmap{$lib};
459 }
460
461 my(@variants,$variant,$cand);
462 my($ctype) = '';
463
464 # If we don't have a file type, consider it a possibly abbreviated name and
465 # check for common variants. We try these first to grab libraries before
466 # a like-named executable image (e.g. -lperl resolves to perlshr.exe
467 # before perl.exe).
468 if ($lib !~ /\.[^:>\]]*$/) {
469 push(@variants,"${lib}shr","${lib}rtl","${lib}lib");
470 push(@variants,"lib$lib") if $lib !~ /[:>\]]/;
471 }
472 push(@variants,$lib);
473 warn "Looking for $lib\n" if $verbose;
474 foreach $variant (@variants) {
475 my($fullname, $name);
476
477 foreach $dir (@dirs) {
478 my($type);
479
480 $name = "$dir$variant";
481 warn "\tChecking $name\n" if $verbose > 2;
482 $fullname = VMS::Filespec::rmsexpand($name);
483 if (defined $fullname and -f $fullname) {
484 # It's got its own suffix, so we'll have to figure out the type
485 if ($fullname =~ /(?:$so|exe)$/i) { $type = 'SHR'; }
486 elsif ($fullname =~ /(?:$lib_ext|olb)$/i) { $type = 'OLB'; }
487 elsif ($fullname =~ /(?:$obj_ext|obj)$/i) {
488 warn "Note (probably harmless): "
489 ."Plain object file $fullname found in library list\n";
490 $type = 'OBJ';
491 }
492 else {
493 warn "Note (probably harmless): "
494 ."Unknown library type for $fullname; assuming shared\n";
495 $type = 'SHR';
496 }
497 }
498 elsif (-f ($fullname = VMS::Filespec::rmsexpand($name,$so)) or
499 -f ($fullname = VMS::Filespec::rmsexpand($name,'.exe'))) {
500 $type = 'SHR';
501 $name = $fullname unless $fullname =~ /exe;?\d*$/i;
502 }
503 elsif (not length($ctype) and # If we've got a lib already,
504 # don't bother
505 ( -f ($fullname = VMS::Filespec::rmsexpand($name,$lib_ext)) or
506 -f ($fullname = VMS::Filespec::rmsexpand($name,'.olb')))) {
507 $type = 'OLB';
508 $name = $fullname unless $fullname =~ /olb;?\d*$/i;
509 }
510 elsif (not length($ctype) and # If we've got a lib already,
511 # don't bother
512 ( -f ($fullname = VMS::Filespec::rmsexpand($name,$obj_ext)) or
513 -f ($fullname = VMS::Filespec::rmsexpand($name,'.obj')))) {
514 warn "Note (probably harmless): "
515 ."Plain object file $fullname found in library list\n";
516 $type = 'OBJ';
517 $name = $fullname unless $fullname =~ /obj;?\d*$/i;
518 }
519 if (defined $type) {
520 $ctype = $type; $cand = $name;
521 last if $ctype eq 'SHR';
522 }
523 }
524 if ($ctype) {
525 # This has to precede any other CRTLs, so just make it first
526 if ($cand eq 'VAXCCURSE') { unshift @{$found{$ctype}}, $cand; }
527 else { push @{$found{$ctype}}, $cand; }
528 warn "\tFound as $cand (really $fullname), type $ctype\n"
529 if $verbose > 1;
530 push @flibs, $name unless $libs_seen{$fullname}++;
531 next LIB;
532 }
533 }
534 warn "Note (probably harmless): "
535 ."No library found for $lib\n";
536 }
537
538 push @fndlibs, @{$found{OBJ}} if exists $found{OBJ};
539 push @fndlibs, map { "$_/Library" } @{$found{OLB}} if exists $found{OLB};
540 push @fndlibs, map { "$_/Share" } @{$found{SHR}} if exists $found{SHR};
541 $lib = join(' ',@fndlibs);
542
543 $ldlib = $crtlstr ? "$lib $crtlstr" : $lib;
544 warn "Result:\n\tEXTRALIBS: $lib\n\tLDLOADLIBS: $ldlib\n" if $verbose;
545 wantarray ? ($lib, '', $ldlib, '', ($give_libs ? \@flibs : ())) : $lib;
546}
547
5481;
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