package ExtUtils::Liblist::Kid; # XXX Splitting this out into its own .pm is a temporary solution. # This kid package is to be used by MakeMaker. It will not work if # $self is not a Makemaker. use 5.00503; # Broken out of MakeMaker from version 4.11 use strict; use vars qw($VERSION); $VERSION = 1.30_01; use Config; use Cwd 'cwd'; use File::Basename; use File::Spec; sub ext { if ($^O eq 'VMS') { return &_vms_ext; } elsif($^O eq 'MSWin32') { return &_win32_ext; } else { return &_unix_os2_ext; } } sub _unix_os2_ext { my($self,$potential_libs, $verbose, $give_libs) = @_; $verbose ||= 0; if ($^O =~ 'os2' and $Config{perllibs}) { # Dynamic libraries are not transitive, so we may need including # the libraries linked against perl.dll again. $potential_libs .= " " if $potential_libs; $potential_libs .= $Config{perllibs}; } return ("", "", "", "", ($give_libs ? [] : ())) unless $potential_libs; warn "Potential libraries are '$potential_libs':\n" if $verbose; my($so) = $Config{so}; my($libs) = defined $Config{perllibs} ? $Config{perllibs} : $Config{libs}; my $Config_libext = $Config{lib_ext} || ".a"; # compute $extralibs, $bsloadlibs and $ldloadlibs from # $potential_libs # this is a rewrite of Andy Dougherty's extliblist in perl my(@searchpath); # from "-L/path" entries in $potential_libs my(@libpath) = split " ", $Config{'libpth'}; my(@ldloadlibs, @bsloadlibs, @extralibs, @ld_run_path, %ld_run_path_seen); my(@libs, %libs_seen); my($fullname, $thislib, $thispth, @fullname); my($pwd) = cwd(); # from Cwd.pm my($found) = 0; foreach $thislib (split ' ', $potential_libs){ # Handle possible linker path arguments. if ($thislib =~ s/^(-[LR]|-Wl,-R)//){ # save path flag type my($ptype) = $1; unless (-d $thislib){ warn "$ptype$thislib ignored, directory does not exist\n" if $verbose; next; } my($rtype) = $ptype; if (($ptype eq '-R') or ($ptype eq '-Wl,-R')) { if ($Config{'lddlflags'} =~ /-Wl,-R/) { $rtype = '-Wl,-R'; } elsif ($Config{'lddlflags'} =~ /-R/) { $rtype = '-R'; } } unless (File::Spec->file_name_is_absolute($thislib)) { warn "Warning: $ptype$thislib changed to $ptype$pwd/$thislib\n"; $thislib = $self->catdir($pwd,$thislib); } push(@searchpath, $thislib); push(@extralibs, "$ptype$thislib"); push(@ldloadlibs, "$rtype$thislib"); next; } # Handle possible library arguments. unless ($thislib =~ s/^-l//){ warn "Unrecognized argument in LIBS ignored: '$thislib'\n"; next; } my($found_lib)=0; foreach $thispth (@searchpath, @libpath){ # Try to find the full name of the library. We need this to # determine whether it's a dynamically-loadable library or not. # This tends to be subject to various os-specific quirks. # For gcc-2.6.2 on linux (March 1995), DLD can not load # .sa libraries, with the exception of libm.sa, so we # deliberately skip them. if (@fullname = $self->lsdir($thispth,"^\Qlib$thislib.$so.\E[0-9]+")){ # Take care that libfoo.so.10 wins against libfoo.so.9. # Compare two libraries to find the most recent version # number. E.g. if you have libfoo.so.9.0.7 and # libfoo.so.10.1, first convert all digits into two # decimal places. Then we'll add ".00" to the shorter # strings so that we're comparing strings of equal length # Thus we'll compare libfoo.so.09.07.00 with # libfoo.so.10.01.00. Some libraries might have letters # in the version. We don't know what they mean, but will # try to skip them gracefully -- we'll set any letter to # '0'. Finally, sort in reverse so we can take the # first element. #TODO: iterate through the directory instead of sorting $fullname = "$thispth/" . (sort { my($ma) = $a; my($mb) = $b; $ma =~ tr/A-Za-z/0/s; $ma =~ s/\b(\d)\b/0$1/g; $mb =~ tr/A-Za-z/0/s; $mb =~ s/\b(\d)\b/0$1/g; while (length($ma) < length($mb)) { $ma .= ".00"; } while (length($mb) < length($ma)) { $mb .= ".00"; } # Comparison deliberately backwards $mb cmp $ma;} @fullname)[0]; } elsif (-f ($fullname="$thispth/lib$thislib.$so") && (($Config{'dlsrc'} ne "dl_dld.xs") || ($thislib eq "m"))){ } elsif (-f ($fullname="$thispth/lib${thislib}_s$Config_libext") && (! $Config{'archname'} =~ /RM\d\d\d-svr4/) && ($thislib .= "_s") ){ # we must explicitly use _s version } elsif (-f ($fullname="$thispth/lib$thislib$Config_libext")){ } elsif (-f ($fullname="$thispth/$thislib$Config_libext")){ } elsif (-f ($fullname="$thispth/Slib$thislib$Config_libext")){ } elsif ($^O eq 'dgux' && -l ($fullname="$thispth/lib$thislib$Config_libext") && readlink($fullname) =~ /^elink:/s) { # Some of DG's libraries look like misconnected symbolic # links, but development tools can follow them. (They # look like this: # # libm.a -> elink:${SDE_PATH:-/usr}/sde/\ # ${TARGET_BINARY_INTERFACE:-m88kdgux}/usr/lib/libm.a # # , the compilation tools expand the environment variables.) } else { warn "$thislib not found in $thispth\n" if $verbose; next; } warn "'-l$thislib' found at $fullname\n" if $verbose; push @libs, $fullname unless $libs_seen{$fullname}++; $found++; $found_lib++; # Now update library lists # what do we know about this library... my $is_dyna = ($fullname !~ /\Q$Config_libext\E\z/); my $in_perl = ($libs =~ /\B-l\Q${thislib}\E\b/s); # include the path to the lib once in the dynamic linker path # but only if it is a dynamic lib and not in Perl itself my($fullnamedir) = dirname($fullname); push @ld_run_path, $fullnamedir if $is_dyna && !$in_perl && !$ld_run_path_seen{$fullnamedir}++; # Do not add it into the list if it is already linked in # with the main perl executable. # We have to special-case the NeXT, because math and ndbm # are both in libsys_s unless ($in_perl || ($Config{'osname'} eq 'next' && ($thislib eq 'm' || $thislib eq 'ndbm')) ){ push(@extralibs, "-l$thislib"); } # We might be able to load this archive file dynamically if ( ($Config{'dlsrc'} =~ /dl_next/ && $Config{'osvers'} lt '4_0') || ($Config{'dlsrc'} =~ /dl_dld/) ) { # We push -l$thislib instead of $fullname because # it avoids hardwiring a fixed path into the .bs file. # Mkbootstrap will automatically add dl_findfile() to # the .bs file if it sees a name in the -l format. # USE THIS, when dl_findfile() is fixed: # push(@bsloadlibs, "-l$thislib"); # OLD USE WAS while checking results against old_extliblist push(@bsloadlibs, "$fullname"); } else { if ($is_dyna){ # For SunOS4, do not add in this shared library if # it is already linked in the main perl executable push(@ldloadlibs, "-l$thislib") unless ($in_perl and $^O eq 'sunos'); } else { push(@ldloadlibs, "-l$thislib"); } } last; # found one here so don't bother looking further } warn "Note (probably harmless): " ."No library found for -l$thislib\n" unless $found_lib>0; } unless( $found ) { return ('','','','', ($give_libs ? \@libs : ())); } else { return ("@extralibs", "@bsloadlibs", "@ldloadlibs", join(":",@ld_run_path), ($give_libs ? \@libs : ())); } } sub _win32_ext { require Text::ParseWords; my($self, $potential_libs, $verbose, $give_libs) = @_; $verbose ||= 0; # If user did not supply a list, we punt. # (caller should probably use the list in $Config{libs}) return ("", "", "", "", ($give_libs ? [] : ())) unless $potential_libs; my $cc = $Config{cc}; my $VC = $cc =~ /^cl/i; my $BC = $cc =~ /^bcc/i; my $GC = $cc =~ /^gcc/i; my $so = $Config{'so'}; my $libs = $Config{'perllibs'}; my $libpth = $Config{'libpth'}; my $libext = $Config{'lib_ext'} || ".lib"; my(@libs, %libs_seen); if ($libs and $potential_libs !~ /:nodefault/i) { # If Config.pm defines a set of default libs, we always # tack them on to the user-supplied list, unless the user # specified :nodefault $potential_libs .= " " if $potential_libs; $potential_libs .= $libs; } warn "Potential libraries are '$potential_libs':\n" if $verbose; # normalize to forward slashes $libpth =~ s,\\,/,g; $potential_libs =~ s,\\,/,g; # compute $extralibs from $potential_libs my @searchpath; # from "-L/path" in $potential_libs my @libpath = Text::ParseWords::quotewords('\s+', 0, $libpth); my @extralibs; my $pwd = cwd(); # from Cwd.pm my $lib = ''; my $found = 0; my $search = 1; my($fullname, $thislib, $thispth); # add "$Config{installarchlib}/CORE" to default search path push @libpath, "$Config{installarchlib}/CORE"; if ($VC and exists $ENV{LIB} and $ENV{LIB}) { push @libpath, split /;/, $ENV{LIB}; } foreach (Text::ParseWords::quotewords('\s+', 0, $potential_libs)){ $thislib = $_; # see if entry is a flag if (/^:\w+$/) { $search = 0 if lc eq ':nosearch'; $search = 1 if lc eq ':search'; warn "Ignoring unknown flag '$thislib'\n" if $verbose and !/^:(no)?(search|default)$/i; next; } # if searching is disabled, do compiler-specific translations unless ($search) { s/^-l(.+)$/$1.lib/ unless $GC; s/^-L/-libpath:/ if $VC; push(@extralibs, $_); $found++; next; } # handle possible linker path arguments if (s/^-L// and not -d) { warn "$thislib ignored, directory does not exist\n" if $verbose; next; } elsif (-d) { unless (File::Spec->file_name_is_absolute($_)) { warn "Warning: '$thislib' changed to '-L$pwd/$_'\n"; $_ = $self->catdir($pwd,$_); } push(@searchpath, $_); next; } # handle possible library arguments if (s/^-l// and $GC and !/^lib/i) { $_ = "lib$_"; } $_ .= $libext if !/\Q$libext\E$/i; my $secondpass = 0; LOOKAGAIN: # look for the file itself if (-f) { warn "'$thislib' found as '$_'\n" if $verbose; $found++; push(@extralibs, $_); next; } my $found_lib = 0; foreach $thispth (@searchpath, @libpath){ unless (-f ($fullname="$thispth\\$_")) { warn "'$thislib' not found as '$fullname'\n" if $verbose; next; } warn "'$thislib' found as '$fullname'\n" if $verbose; $found++; $found_lib++; push(@extralibs, $fullname); push @libs, $fullname unless $libs_seen{$fullname}++; last; } # do another pass with (or without) leading 'lib' if they used -l if (!$found_lib and $thislib =~ /^-l/ and !$secondpass++) { if ($GC) { goto LOOKAGAIN if s/^lib//i; } elsif (!/^lib/i) { $_ = "lib$_"; goto LOOKAGAIN; } } # give up warn "Note (probably harmless): " ."No library found for $thislib\n" unless $found_lib>0; } return ('','','','', ($give_libs ? \@libs : ())) unless $found; # make sure paths with spaces are properly quoted @extralibs = map { (/\s/ && !/^".*"$/) ? qq["$_"] : $_ } @extralibs; @libs = map { (/\s/ && !/^".*"$/) ? qq["$_"] : $_ } @libs; $lib = join(' ',@extralibs); # normalize back to backward slashes (to help braindead tools) # XXX this may break equally braindead GNU tools that don't understand # backslashes, either. Seems like one can't win here. Cursed be CP/M. $lib =~ s,/,\\,g; warn "Result: $lib\n" if $verbose; wantarray ? ($lib, '', $lib, '', ($give_libs ? \@libs : ())) : $lib; } sub _vms_ext { my($self, $potential_libs,$verbose,$give_libs) = @_; $verbose ||= 0; my(@crtls,$crtlstr); my($dbgqual) = $self->{OPTIMIZE} || $Config{'optimize'} || $self->{CCFLAGS} || $Config{'ccflags'}; @crtls = ( ($dbgqual =~ m-/Debug-i ? $Config{'dbgprefix'} : '') . 'PerlShr/Share' ); push(@crtls, grep { not /\(/ } split /\s+/, $Config{'perllibs'}); push(@crtls, grep { not /\(/ } split /\s+/, $Config{'libc'}); # In general, we pass through the basic libraries from %Config unchanged. # The one exception is that if we're building in the Perl source tree, and # a library spec could be resolved via a logical name, we go to some trouble # to insure that the copy in the local tree is used, rather than one to # which a system-wide logical may point. if ($self->{PERL_SRC}) { my($lib,$locspec,$type); foreach $lib (@crtls) { if (($locspec,$type) = $lib =~ m-^([\w$\-]+)(/\w+)?- and $locspec =~ /perl/i) { if (lc $type eq '/share') { $locspec .= $Config{'exe_ext'}; } elsif (lc $type eq '/library') { $locspec .= $Config{'lib_ext'}; } else { $locspec .= $Config{'obj_ext'}; } $locspec = $self->catfile($self->{PERL_SRC},$locspec); $lib = "$locspec$type" if -e $locspec; } } } $crtlstr = @crtls ? join(' ',@crtls) : ''; unless ($potential_libs) { warn "Result:\n\tEXTRALIBS: \n\tLDLOADLIBS: $crtlstr\n" if $verbose; return ('', '', $crtlstr, '', ($give_libs ? [] : ())); } my(@dirs,@libs,$dir,$lib,%found,@fndlibs,$ldlib); my $cwd = cwd(); my($so,$lib_ext,$obj_ext) = @Config{'so','lib_ext','obj_ext'}; # List of common Unix library names and their VMS equivalents # (VMS equivalent of '' indicates that the library is automatically # searched by the linker, and should be skipped here.) my(@flibs, %libs_seen); my %libmap = ( 'm' => '', 'f77' => '', 'F77' => '', 'V77' => '', 'c' => '', 'malloc' => '', 'crypt' => '', 'resolv' => '', 'c_s' => '', 'socket' => '', 'X11' => 'DECW$XLIBSHR', 'Xt' => 'DECW$XTSHR', 'Xm' => 'DECW$XMLIBSHR', 'Xmu' => 'DECW$XMULIBSHR'); if ($Config{'vms_cc_type'} ne 'decc') { $libmap{'curses'} = 'VAXCCURSE'; } warn "Potential libraries are '$potential_libs'\n" if $verbose; # First, sort out directories and library names in the input foreach $lib (split ' ',$potential_libs) { push(@dirs,$1), next if $lib =~ /^-L(.*)/; push(@dirs,$lib), next if $lib =~ /[:>\]]$/; push(@dirs,$lib), next if -d $lib; push(@libs,$1), next if $lib =~ /^-l(.*)/; push(@libs,$lib); } push(@dirs,split(' ',$Config{'libpth'})); # Now make sure we've got VMS-syntax absolute directory specs # (We don't, however, check whether someone's hidden a relative # path in a logical name.) foreach $dir (@dirs) { unless (-d $dir) { warn "Skipping nonexistent Directory $dir\n" if $verbose > 1; $dir = ''; next; } warn "Resolving directory $dir\n" if $verbose; if (File::Spec->file_name_is_absolute($dir)) { $dir = $self->fixpath($dir,1); } else { $dir = $self->catdir($cwd,$dir); } } @dirs = grep { length($_) } @dirs; unshift(@dirs,''); # Check each $lib without additions first LIB: foreach $lib (@libs) { if (exists $libmap{$lib}) { next unless length $libmap{$lib}; $lib = $libmap{$lib}; } my(@variants,$variant,$cand); my($ctype) = ''; # If we don't have a file type, consider it a possibly abbreviated name and # check for common variants. We try these first to grab libraries before # a like-named executable image (e.g. -lperl resolves to perlshr.exe # before perl.exe). if ($lib !~ /\.[^:>\]]*$/) { push(@variants,"${lib}shr","${lib}rtl","${lib}lib"); push(@variants,"lib$lib") if $lib !~ /[:>\]]/; } push(@variants,$lib); warn "Looking for $lib\n" if $verbose; foreach $variant (@variants) { my($fullname, $name); foreach $dir (@dirs) { my($type); $name = "$dir$variant"; warn "\tChecking $name\n" if $verbose > 2; $fullname = VMS::Filespec::rmsexpand($name); if (defined $fullname and -f $fullname) { # It's got its own suffix, so we'll have to figure out the type if ($fullname =~ /(?:$so|exe)$/i) { $type = 'SHR'; } elsif ($fullname =~ /(?:$lib_ext|olb)$/i) { $type = 'OLB'; } elsif ($fullname =~ /(?:$obj_ext|obj)$/i) { warn "Note (probably harmless): " ."Plain object file $fullname found in library list\n"; $type = 'OBJ'; } else { warn "Note (probably harmless): " ."Unknown library type for $fullname; assuming shared\n"; $type = 'SHR'; } } elsif (-f ($fullname = VMS::Filespec::rmsexpand($name,$so)) or -f ($fullname = VMS::Filespec::rmsexpand($name,'.exe'))) { $type = 'SHR'; $name = $fullname unless $fullname =~ /exe;?\d*$/i; } elsif (not length($ctype) and # If we've got a lib already, # don't bother ( -f ($fullname = VMS::Filespec::rmsexpand($name,$lib_ext)) or -f ($fullname = VMS::Filespec::rmsexpand($name,'.olb')))) { $type = 'OLB'; $name = $fullname unless $fullname =~ /olb;?\d*$/i; } elsif (not length($ctype) and # If we've got a lib already, # don't bother ( -f ($fullname = VMS::Filespec::rmsexpand($name,$obj_ext)) or -f ($fullname = VMS::Filespec::rmsexpand($name,'.obj')))) { warn "Note (probably harmless): " ."Plain object file $fullname found in library list\n"; $type = 'OBJ'; $name = $fullname unless $fullname =~ /obj;?\d*$/i; } if (defined $type) { $ctype = $type; $cand = $name; last if $ctype eq 'SHR'; } } if ($ctype) { # This has to precede any other CRTLs, so just make it first if ($cand eq 'VAXCCURSE') { unshift @{$found{$ctype}}, $cand; } else { push @{$found{$ctype}}, $cand; } warn "\tFound as $cand (really $fullname), type $ctype\n" if $verbose > 1; push @flibs, $name unless $libs_seen{$fullname}++; next LIB; } } warn "Note (probably harmless): " ."No library found for $lib\n"; } push @fndlibs, @{$found{OBJ}} if exists $found{OBJ}; push @fndlibs, map { "$_/Library" } @{$found{OLB}} if exists $found{OLB}; push @fndlibs, map { "$_/Share" } @{$found{SHR}} if exists $found{SHR}; $lib = join(' ',@fndlibs); $ldlib = $crtlstr ? "$lib $crtlstr" : $lib; warn "Result:\n\tEXTRALIBS: $lib\n\tLDLOADLIBS: $ldlib\n" if $verbose; wantarray ? ($lib, '', $ldlib, '', ($give_libs ? \@flibs : ())) : $lib; } 1;