1 package ExtUtils::Liblist::Kid;
3 # XXX Splitting this out into its own .pm is a temporary solution.
5 # This kid package is to be used by MakeMaker. It will not work if
6 # $self is not a Makemaker.
9 # Broken out of MakeMaker from version 4.11
11 use vars qw($VERSION);
20 if ($^O eq 'VMS') { return &_vms_ext; }
21 elsif($^O eq 'MSWin32') { return &_win32_ext; }
22 else { return &_unix_os2_ext; }
26 my($self,$potential_libs, $verbose, $give_libs) = @_;
29 if ($^O =~ 'os2' and $Config{perllibs}) {
30 # Dynamic libraries are not transitive, so we may need including
31 # the libraries linked against perl.dll again.
33 $potential_libs .= " " if $potential_libs;
34 $potential_libs .= $Config{perllibs};
36 return ("", "", "", "", ($give_libs ? [] : ())) unless $potential_libs;
37 warn "Potential libraries are '$potential_libs':\n" if $verbose;
39 my($so) = $Config{so};
40 my($libs) = defined $Config{perllibs} ? $Config{perllibs} : $Config{libs};
41 my $Config_libext = $Config{lib_ext} || ".a";
44 # compute $extralibs, $bsloadlibs and $ldloadlibs from
46 # this is a rewrite of Andy Dougherty's extliblist in perl
48 my(@searchpath); # from "-L/path" entries in $potential_libs
49 my(@libpath) = split " ", $Config{'libpth'};
50 my(@ldloadlibs, @bsloadlibs, @extralibs, @ld_run_path, %ld_run_path_seen);
51 my(@libs, %libs_seen);
52 my($fullname, $thislib, $thispth, @fullname);
53 my($pwd) = cwd(); # from Cwd.pm
56 foreach $thislib (split ' ', $potential_libs){
58 # Handle possible linker path arguments.
59 if ($thislib =~ s/^(-[LR]|-Wl,-R)//){ # save path flag type
62 warn "$ptype$thislib ignored, directory does not exist\n"
67 if (($ptype eq '-R') or ($ptype eq '-Wl,-R')) {
68 if ($Config{'lddlflags'} =~ /-Wl,-R/) {
70 } elsif ($Config{'lddlflags'} =~ /-R/) {
74 unless (File::Spec->file_name_is_absolute($thislib)) {
75 warn "Warning: $ptype$thislib changed to $ptype$pwd/$thislib\n";
76 $thislib = $self->catdir($pwd,$thislib);
78 push(@searchpath, $thislib);
79 push(@extralibs, "$ptype$thislib");
80 push(@ldloadlibs, "$rtype$thislib");
84 # Handle possible library arguments.
85 unless ($thislib =~ s/^-l//){
86 warn "Unrecognized argument in LIBS ignored: '$thislib'\n";
91 foreach $thispth (@searchpath, @libpath){
93 # Try to find the full name of the library. We need this to
94 # determine whether it's a dynamically-loadable library or not.
95 # This tends to be subject to various os-specific quirks.
96 # For gcc-2.6.2 on linux (March 1995), DLD can not load
97 # .sa libraries, with the exception of libm.sa, so we
98 # deliberately skip them.
100 $self->lsdir($thispth,"^\Qlib$thislib.$so.\E[0-9]+")){
101 # Take care that libfoo.so.10 wins against libfoo.so.9.
102 # Compare two libraries to find the most recent version
103 # number. E.g. if you have libfoo.so.9.0.7 and
104 # libfoo.so.10.1, first convert all digits into two
105 # decimal places. Then we'll add ".00" to the shorter
106 # strings so that we're comparing strings of equal length
107 # Thus we'll compare libfoo.so.09.07.00 with
108 # libfoo.so.10.01.00. Some libraries might have letters
109 # in the version. We don't know what they mean, but will
110 # try to skip them gracefully -- we'll set any letter to
111 # '0'. Finally, sort in reverse so we can take the
114 #TODO: iterate through the directory instead of sorting
116 $fullname = "$thispth/" .
117 (sort { my($ma) = $a;
119 $ma =~ tr/A-Za-z/0/s;
120 $ma =~ s/\b(\d)\b/0$1/g;
121 $mb =~ tr/A-Za-z/0/s;
122 $mb =~ s/\b(\d)\b/0$1/g;
123 while (length($ma) < length($mb)) { $ma .= ".00"; }
124 while (length($mb) < length($ma)) { $mb .= ".00"; }
125 # Comparison deliberately backwards
126 $mb cmp $ma;} @fullname)[0];
127 } elsif (-f ($fullname="$thispth/lib$thislib.$so")
128 && (($Config{'dlsrc'} ne "dl_dld.xs") || ($thislib eq "m"))){
129 } elsif (-f ($fullname="$thispth/lib${thislib}_s$Config_libext")
130 && (! $Config{'archname'} =~ /RM\d\d\d-svr4/)
131 && ($thislib .= "_s") ){ # we must explicitly use _s version
132 } elsif (-f ($fullname="$thispth/lib$thislib$Config_libext")){
133 } elsif (-f ($fullname="$thispth/$thislib$Config_libext")){
134 } elsif (-f ($fullname="$thispth/Slib$thislib$Config_libext")){
135 } elsif ($^O eq 'dgux'
136 && -l ($fullname="$thispth/lib$thislib$Config_libext")
137 && readlink($fullname) =~ /^elink:/s) {
138 # Some of DG's libraries look like misconnected symbolic
139 # links, but development tools can follow them. (They
142 # libm.a -> elink:${SDE_PATH:-/usr}/sde/\
143 # ${TARGET_BINARY_INTERFACE:-m88kdgux}/usr/lib/libm.a
145 # , the compilation tools expand the environment variables.)
147 warn "$thislib not found in $thispth\n" if $verbose;
150 warn "'-l$thislib' found at $fullname\n" if $verbose;
151 my($fullnamedir) = dirname($fullname);
152 push @ld_run_path, $fullnamedir
153 unless $ld_run_path_seen{$fullnamedir}++;
154 push @libs, $fullname unless $libs_seen{$fullname}++;
158 # Now update library lists
160 # what do we know about this library...
161 my $is_dyna = ($fullname !~ /\Q$Config_libext\E\z/);
162 my $in_perl = ($libs =~ /\B-l\Q${thislib}\E\b/s);
164 # Do not add it into the list if it is already linked in
165 # with the main perl executable.
166 # We have to special-case the NeXT, because math and ndbm
167 # are both in libsys_s
169 ($Config{'osname'} eq 'next' &&
170 ($thislib eq 'm' || $thislib eq 'ndbm')) ){
171 push(@extralibs, "-l$thislib");
174 # We might be able to load this archive file dynamically
175 if ( ($Config{'dlsrc'} =~ /dl_next/ && $Config{'osvers'} lt '4_0')
176 || ($Config{'dlsrc'} =~ /dl_dld/) )
178 # We push -l$thislib instead of $fullname because
179 # it avoids hardwiring a fixed path into the .bs file.
180 # Mkbootstrap will automatically add dl_findfile() to
181 # the .bs file if it sees a name in the -l format.
182 # USE THIS, when dl_findfile() is fixed:
183 # push(@bsloadlibs, "-l$thislib");
184 # OLD USE WAS while checking results against old_extliblist
185 push(@bsloadlibs, "$fullname");
188 # For SunOS4, do not add in this shared library if
189 # it is already linked in the main perl executable
190 push(@ldloadlibs, "-l$thislib")
191 unless ($in_perl and $^O eq 'sunos');
193 push(@ldloadlibs, "-l$thislib");
196 last; # found one here so don't bother looking further
198 warn "Note (probably harmless): "
199 ."No library found for -l$thislib\n"
204 return ('','','','', ($give_libs ? \@libs : ()));
207 return ("@extralibs", "@bsloadlibs", "@ldloadlibs",
208 join(":",@ld_run_path), ($give_libs ? \@libs : ()));
214 require Text::ParseWords;
216 my($self, $potential_libs, $verbose, $give_libs) = @_;
219 # If user did not supply a list, we punt.
220 # (caller should probably use the list in $Config{libs})
221 return ("", "", "", "", ($give_libs ? [] : ())) unless $potential_libs;
223 my $cc = $Config{cc};
224 my $VC = 1 if $cc =~ /^cl/i;
225 my $BC = 1 if $cc =~ /^bcc/i;
226 my $GC = 1 if $cc =~ /^gcc/i;
227 my $so = $Config{'so'};
228 my $libs = $Config{'perllibs'};
229 my $libpth = $Config{'libpth'};
230 my $libext = $Config{'lib_ext'} || ".lib";
231 my(@libs, %libs_seen);
233 if ($libs and $potential_libs !~ /:nodefault/i) {
234 # If Config.pm defines a set of default libs, we always
235 # tack them on to the user-supplied list, unless the user
236 # specified :nodefault
238 $potential_libs .= " " if $potential_libs;
239 $potential_libs .= $libs;
241 warn "Potential libraries are '$potential_libs':\n" if $verbose;
243 # normalize to forward slashes
245 $potential_libs =~ s,\\,/,g;
247 # compute $extralibs from $potential_libs
249 my @searchpath; # from "-L/path" in $potential_libs
250 my @libpath = Text::ParseWords::quotewords('\s+', 0, $libpth);
252 my $pwd = cwd(); # from Cwd.pm
256 my($fullname, $thislib, $thispth);
258 # add "$Config{installarchlib}/CORE" to default search path
259 push @libpath, "$Config{installarchlib}/CORE";
261 if ($VC and exists $ENV{LIB} and $ENV{LIB}) {
262 push @libpath, split /;/, $ENV{LIB};
265 foreach (Text::ParseWords::quotewords('\s+', 0, $potential_libs)){
269 # see if entry is a flag
271 $search = 0 if lc eq ':nosearch';
272 $search = 1 if lc eq ':search';
273 warn "Ignoring unknown flag '$thislib'\n"
274 if $verbose and !/^:(no)?(search|default)$/i;
278 # if searching is disabled, do compiler-specific translations
280 s/^-l(.+)$/$1.lib/ unless $GC;
281 s/^-L/-libpath:/ if $VC;
282 push(@extralibs, $_);
287 # handle possible linker path arguments
288 if (s/^-L// and not -d) {
289 warn "$thislib ignored, directory does not exist\n"
294 unless (File::Spec->file_name_is_absolute($_)) {
295 warn "Warning: '$thislib' changed to '-L$pwd/$_'\n";
296 $_ = $self->catdir($pwd,$_);
298 push(@searchpath, $_);
302 # handle possible library arguments
303 if (s/^-l// and $GC and !/^lib/i) {
306 $_ .= $libext if !/\Q$libext\E$/i;
311 # look for the file itself
313 warn "'$thislib' found as '$_'\n" if $verbose;
315 push(@extralibs, $_);
320 foreach $thispth (@searchpath, @libpath){
321 unless (-f ($fullname="$thispth\\$_")) {
322 warn "'$thislib' not found as '$fullname'\n" if $verbose;
325 warn "'$thislib' found as '$fullname'\n" if $verbose;
328 push(@extralibs, $fullname);
329 push @libs, $fullname unless $libs_seen{$fullname}++;
333 # do another pass with (or without) leading 'lib' if they used -l
334 if (!$found_lib and $thislib =~ /^-l/ and !$secondpass++) {
336 goto LOOKAGAIN if s/^lib//i;
345 warn "Note (probably harmless): "
346 ."No library found for $thislib\n"
351 return ('','','','', ($give_libs ? \@libs : ())) unless $found;
353 # make sure paths with spaces are properly quoted
354 @extralibs = map { (/\s/ && !/^".*"$/) ? qq["$_"] : $_ } @extralibs;
355 @libs = map { (/\s/ && !/^".*"$/) ? qq["$_"] : $_ } @libs;
356 $lib = join(' ',@extralibs);
358 # normalize back to backward slashes (to help braindead tools)
359 # XXX this may break equally braindead GNU tools that don't understand
360 # backslashes, either. Seems like one can't win here. Cursed be CP/M.
363 warn "Result: $lib\n" if $verbose;
364 wantarray ? ($lib, '', $lib, '', ($give_libs ? \@libs : ())) : $lib;
369 my($self, $potential_libs,$verbose,$give_libs) = @_;
373 my($dbgqual) = $self->{OPTIMIZE} || $Config{'optimize'} ||
374 $self->{CCFLAGS} || $Config{'ccflags'};
375 @crtls = ( ($dbgqual =~ m-/Debug-i ? $Config{'dbgprefix'} : '')
377 push(@crtls, grep { not /\(/ } split /\s+/, $Config{'perllibs'});
378 push(@crtls, grep { not /\(/ } split /\s+/, $Config{'libc'});
379 # In general, we pass through the basic libraries from %Config unchanged.
380 # The one exception is that if we're building in the Perl source tree, and
381 # a library spec could be resolved via a logical name, we go to some trouble
382 # to insure that the copy in the local tree is used, rather than one to
383 # which a system-wide logical may point.
384 if ($self->{PERL_SRC}) {
385 my($lib,$locspec,$type);
386 foreach $lib (@crtls) {
387 if (($locspec,$type) = $lib =~ m-^([\w$\-]+)(/\w+)?- and $locspec =~ /perl/i) {
388 if (lc $type eq '/share') { $locspec .= $Config{'exe_ext'}; }
389 elsif (lc $type eq '/library') { $locspec .= $Config{'lib_ext'}; }
390 else { $locspec .= $Config{'obj_ext'}; }
391 $locspec = $self->catfile($self->{PERL_SRC},$locspec);
392 $lib = "$locspec$type" if -e $locspec;
396 $crtlstr = @crtls ? join(' ',@crtls) : '';
398 unless ($potential_libs) {
399 warn "Result:\n\tEXTRALIBS: \n\tLDLOADLIBS: $crtlstr\n" if $verbose;
400 return ('', '', $crtlstr, '', ($give_libs ? [] : ()));
403 my(@dirs,@libs,$dir,$lib,%found,@fndlibs,$ldlib);
405 my($so,$lib_ext,$obj_ext) = @Config{'so','lib_ext','obj_ext'};
406 # List of common Unix library names and their VMS equivalents
407 # (VMS equivalent of '' indicates that the library is automatically
408 # searched by the linker, and should be skipped here.)
409 my(@flibs, %libs_seen);
410 my %libmap = ( 'm' => '', 'f77' => '', 'F77' => '', 'V77' => '', 'c' => '',
411 'malloc' => '', 'crypt' => '', 'resolv' => '', 'c_s' => '',
412 'socket' => '', 'X11' => 'DECW$XLIBSHR',
413 'Xt' => 'DECW$XTSHR', 'Xm' => 'DECW$XMLIBSHR',
414 'Xmu' => 'DECW$XMULIBSHR');
415 if ($Config{'vms_cc_type'} ne 'decc') { $libmap{'curses'} = 'VAXCCURSE'; }
417 warn "Potential libraries are '$potential_libs'\n" if $verbose;
419 # First, sort out directories and library names in the input
420 foreach $lib (split ' ',$potential_libs) {
421 push(@dirs,$1), next if $lib =~ /^-L(.*)/;
422 push(@dirs,$lib), next if $lib =~ /[:>\]]$/;
423 push(@dirs,$lib), next if -d $lib;
424 push(@libs,$1), next if $lib =~ /^-l(.*)/;
427 push(@dirs,split(' ',$Config{'libpth'}));
429 # Now make sure we've got VMS-syntax absolute directory specs
430 # (We don't, however, check whether someone's hidden a relative
431 # path in a logical name.)
432 foreach $dir (@dirs) {
434 warn "Skipping nonexistent Directory $dir\n" if $verbose > 1;
438 warn "Resolving directory $dir\n" if $verbose;
439 if (File::Spec->file_name_is_absolute($dir)) {
440 $dir = $self->fixpath($dir,1);
443 $dir = $self->catdir($cwd,$dir);
446 @dirs = grep { length($_) } @dirs;
447 unshift(@dirs,''); # Check each $lib without additions first
449 LIB: foreach $lib (@libs) {
450 if (exists $libmap{$lib}) {
451 next unless length $libmap{$lib};
452 $lib = $libmap{$lib};
455 my(@variants,$variant,$name,$test,$cand);
458 # If we don't have a file type, consider it a possibly abbreviated name and
459 # check for common variants. We try these first to grab libraries before
460 # a like-named executable image (e.g. -lperl resolves to perlshr.exe
462 if ($lib !~ /\.[^:>\]]*$/) {
463 push(@variants,"${lib}shr","${lib}rtl","${lib}lib");
464 push(@variants,"lib$lib") if $lib !~ /[:>\]]/;
466 push(@variants,$lib);
467 warn "Looking for $lib\n" if $verbose;
468 foreach $variant (@variants) {
469 foreach $dir (@dirs) {
472 $name = "$dir$variant";
473 warn "\tChecking $name\n" if $verbose > 2;
474 if (-f ($test = VMS::Filespec::rmsexpand($name))) {
475 # It's got its own suffix, so we'll have to figure out the type
476 if ($test =~ /(?:$so|exe)$/i) { $type = 'SHR'; }
477 elsif ($test =~ /(?:$lib_ext|olb)$/i) { $type = 'OLB'; }
478 elsif ($test =~ /(?:$obj_ext|obj)$/i) {
479 warn "Note (probably harmless): "
480 ."Plain object file $test found in library list\n";
484 warn "Note (probably harmless): "
485 ."Unknown library type for $test; assuming shared\n";
489 elsif (-f ($test = VMS::Filespec::rmsexpand($name,$so)) or
490 -f ($test = VMS::Filespec::rmsexpand($name,'.exe'))) {
492 $name = $test unless $test =~ /exe;?\d*$/i;
494 elsif (not length($ctype) and # If we've got a lib already, don't bother
495 ( -f ($test = VMS::Filespec::rmsexpand($name,$lib_ext)) or
496 -f ($test = VMS::Filespec::rmsexpand($name,'.olb')))) {
498 $name = $test unless $test =~ /olb;?\d*$/i;
500 elsif (not length($ctype) and # If we've got a lib already, don't bother
501 ( -f ($test = VMS::Filespec::rmsexpand($name,$obj_ext)) or
502 -f ($test = VMS::Filespec::rmsexpand($name,'.obj')))) {
503 warn "Note (probably harmless): "
504 ."Plain object file $test found in library list\n";
506 $name = $test unless $test =~ /obj;?\d*$/i;
509 $ctype = $type; $cand = $name;
510 last if $ctype eq 'SHR';
514 # This has to precede any other CRTLs, so just make it first
515 if ($cand eq 'VAXCCURSE') { unshift @{$found{$ctype}}, $cand; }
516 else { push @{$found{$ctype}}, $cand; }
517 warn "\tFound as $cand (really $test), type $ctype\n" if $verbose > 1;
518 push @flibs, $name unless $libs_seen{$fullname}++;
522 warn "Note (probably harmless): "
523 ."No library found for $lib\n";
526 push @fndlibs, @{$found{OBJ}} if exists $found{OBJ};
527 push @fndlibs, map { "$_/Library" } @{$found{OLB}} if exists $found{OLB};
528 push @fndlibs, map { "$_/Share" } @{$found{SHR}} if exists $found{SHR};
529 $lib = join(' ',@fndlibs);
531 $ldlib = $crtlstr ? "$lib $crtlstr" : $lib;
532 warn "Result:\n\tEXTRALIBS: $lib\n\tLDLOADLIBS: $ldlib\n" if $verbose;
533 wantarray ? ($lib, '', $ldlib, '', ($give_libs ? \@flibs : ())) : $lib;