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Edit File: Kid.pm
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 5.006; # Broken out of MakeMaker from version 4.11 use strict; use warnings; our $VERSION = '7.34'; $VERSION = eval $VERSION; use ExtUtils::MakeMaker::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|android/ and $Config{perllibs} ) { # Dynamic libraries are not transitive, so we may need including # the libraries linked against perl.dll/libperl.so 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"; my $Config_dlext = $Config{dlext}; # 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, @fullname ); my ( $pwd ) = cwd(); # from Cwd.pm my ( $found ) = 0; if ( $^O eq 'darwin' or $^O eq 'next' ) { # 'escape' Mach-O ld -framework and -F flags, so they aren't dropped later on $potential_libs =~ s/(^|\s)(-(?:weak_|reexport_|lazy_)?framework)\s+(\S+)/$1-Wl,$2 -Wl,$3/g; $potential_libs =~ s/(^|\s)(-F)\s*(\S+)/$1-Wl,$2 -Wl,$3/g; } # Debian-specific: don't use LD_RUN_PATH for standard dirs $ld_run_path_seen{$_}++ for @libpath; foreach my $thislib ( split ' ', $potential_libs ) { my ( $custom_name ) = ''; # Handle possible linker path arguments. if ( $thislib =~ s/^(-[LR]|-Wl,-R|-Wl,-rpath,)// ) { # 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 =~ m!^-Wl,-[Rr]! ) ) { if ( $Config{'lddlflags'} =~ /-Wl,-[Rr]/ ) { $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; } if ( $thislib =~ m!^-Wl,! ) { push( @extralibs, $thislib ); push( @ldloadlibs, $thislib ); next; } # Handle possible library arguments. if ( $thislib =~ s/^-l(:)?// ) { # Handle -l:foo.so, which means that the library will # actually be called foo.so, not libfoo.so. This # is used in Android by ExtUtils::Depends to allow one XS # module to link to another. $custom_name = $1 || ''; } else { warn "Unrecognized argument in LIBS ignored: '$thislib'\n"; next; } my ( $found_lib ) = 0; foreach my $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]+")) || (@fullname = $self->lsdir($thispth, "^\Qlib$thislib.\E[0-9]+\Q\.$so"))) { # 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 ( defined( $Config_dlext ) && -f ( $fullname = "$thispth/lib$thislib.$Config_dlext" ) ) { } elsif ( -f ( $fullname = "$thispth/$thislib$Config_libext" ) ) { } elsif ( -f ( $fullname = "$thispth/lib$thislib.dll$Config_libext" ) ) { } elsif ( $^O eq 'cygwin' && -f ( $fullname = "$thispth/$thislib.dll" ) ) { } 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.) } elsif ( $custom_name && -f ( $fullname = "$thispth/$thislib" ) ) { } else { warn "$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' || $thislib eq 'ndbm' ) ) ) { push( @extralibs, "-l$custom_name$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 ( $is_dyna ) { # For SunOS4, do not add in this shared library if # it is already linked in the main perl executable push( @ldloadlibs, "-l$custom_name$thislib" ) unless ( $in_perl and $^O eq 'sunos' ); } else { push( @ldloadlibs, "-l$custom_name$thislib" ); } } last; # found one here so don't bother looking further } warn "Warning (mostly harmless): " . "No library found for -l$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; # TODO: make this use MM_Win32.pm's compiler detection my %libs_seen; my @extralibs; my $cc = $Config{cc} || ''; my $VC = $cc =~ /\bcl\b/i; my $GC = $cc =~ /\bgcc\b/i; my $libext = _win32_lib_extensions(); my @searchpath = ( '' ); # from "-L/path" entries in $potential_libs my @libpath = _win32_default_search_paths( $VC, $GC ); my $pwd = cwd(); # from Cwd.pm my $search = 1; # compute @extralibs from $potential_libs my @lib_search_list = _win32_make_lib_search_list( $potential_libs, $verbose ); for ( @lib_search_list ) { my $thislib = $_; # see if entry is a flag if ( /^:\w+$/ ) { $search = 0 if lc eq ':nosearch'; $search = 1 if lc eq ':search'; _debug( "Ignoring unknown flag '$thislib'\n", $verbose ) if !/^:(no)?(search|default)$/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, $_ ); next; } # handle possible linker path arguments if ( s/^-L// and not -d ) { _debug( "$thislib ignored, directory does not exist\n", $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; } my @paths = ( @searchpath, @libpath ); my ( $fullname, $path ) = _win32_search_file( $thislib, $libext, \@paths, $verbose, $GC ); if ( !$fullname ) { warn "Warning (mostly harmless): No library found for $thislib\n"; next; } _debug( "'$thislib' found as '$fullname'\n", $verbose ); push( @extralibs, $fullname ); $libs_seen{$fullname} = 1 if $path; # why is this a special case? } my @libs = sort keys %libs_seen; return ( '', '', '', '', ( $give_libs ? \@libs : () ) ) unless @extralibs; # make sure paths with spaces are properly quoted @extralibs = map { qq["$_"] } @extralibs; @libs = map { qq["$_"] } @libs; my $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; _debug( "Result: $lib\n", $verbose ); wantarray ? ( $lib, '', $lib, '', ( $give_libs ? \@libs : () ) ) : $lib; } sub _win32_make_lib_search_list { my ( $potential_libs, $verbose ) = @_; # If Config.pm defines a set of default libs, we always # tack them on to the user-supplied list, unless the user # specified :nodefault my $libs = $Config{'perllibs'}; $potential_libs = join( ' ', $potential_libs, $libs ) if $libs and $potential_libs !~ /:nodefault/i; _debug( "Potential libraries are '$potential_libs':\n", $verbose ); $potential_libs =~ s,\\,/,g; # normalize to forward slashes my @list = Text::ParseWords::quotewords( '\s+', 0, $potential_libs ); return @list; } sub _win32_default_search_paths { my ( $VC, $GC ) = @_; my $libpth = $Config{'libpth'} || ''; $libpth =~ s,\\,/,g; # normalize to forward slashes my @libpath = Text::ParseWords::quotewords( '\s+', 0, $libpth ); push @libpath, "$Config{installarchlib}/CORE"; # add "$Config{installarchlib}/CORE" to default search path push @libpath, split /;/, $ENV{LIB} if $VC and $ENV{LIB}; push @libpath, split /;/, $ENV{LIBRARY_PATH} if $GC and $ENV{LIBRARY_PATH}; return @libpath; } sub _win32_search_file { my ( $thislib, $libext, $paths, $verbose, $GC ) = @_; my @file_list = _win32_build_file_list( $thislib, $GC, $libext ); for my $lib_file ( @file_list ) { for my $path ( @{$paths} ) { my $fullname = $lib_file; $fullname = "$path\\$fullname" if $path; return ( $fullname, $path ) if -f $fullname; _debug( "'$thislib' not found as '$fullname'\n", $verbose ); } } return; } sub _win32_build_file_list { my ( $lib, $GC, $extensions ) = @_; my @pre_fixed = _win32_build_prefixed_list( $lib, $GC ); return map _win32_attach_extensions( $_, $extensions ), @pre_fixed; } sub _win32_build_prefixed_list { my ( $lib, $GC ) = @_; return $lib if $lib !~ s/^-l//; return $lib if $lib =~ /^lib/ and !$GC; ( my $no_prefix = $lib ) =~ s/^lib//i; $lib = "lib$lib" if $no_prefix eq $lib; return ( $lib, $no_prefix ) if $GC; return ( $no_prefix, $lib ); } sub _win32_attach_extensions { my ( $lib, $extensions ) = @_; return map _win32_try_attach_extension( $lib, $_ ), @{$extensions}; } sub _win32_try_attach_extension { my ( $lib, $extension ) = @_; return $lib if $lib =~ /\Q$extension\E$/i; return "$lib$extension"; } sub _win32_lib_extensions { my @extensions; push @extensions, $Config{'lib_ext'} if $Config{'lib_ext'}; push @extensions, '.dll.a' if grep { m!^\.a$! } @extensions; push @extensions, '.lib' unless grep { m!^\.lib$! } @extensions; return \@extensions; } sub _debug { my ( $message, $verbose ) = @_; return if !$verbose; warn $message; return; } sub _vms_ext { my ( $self, $potential_libs, $verbose, $give_libs ) = @_; $verbose ||= 0; my ( @crtls, $crtlstr ); @crtls = ( ( $Config{'ldflags'} =~ 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 ( $locspec, $type ); foreach my $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 ( %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$XMULIBSHR' ); warn "Potential libraries are '$potential_libs'\n" if $verbose; # First, sort out directories and library names in the input my ( @dirs, @libs ); foreach my $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 my $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 = VMS::Filespec::vmspath( $dir ); } else { $dir = $self->catdir( $cwd, $dir ); } } @dirs = grep { length( $_ ) } @dirs; unshift( @dirs, '' ); # Check each $lib without additions first LIB: foreach my $lib ( @libs ) { if ( exists $libmap{$lib} ) { next unless length $libmap{$lib}; $lib = $libmap{$lib}; } my ( @variants, $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 my $variant ( @variants ) { my ( $fullname, $name ); foreach my $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 "Warning (mostly harmless): " . "Plain object file $fullname found in library list\n"; $type = 'OBJ'; } else { warn "Warning (mostly 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 "Warning (mostly 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 ) { 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 "Warning (mostly 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}; my $lib = join( ' ', @fndlibs ); $ldlib = $crtlstr ? "$lib $crtlstr" : $lib; $ldlib =~ s/^\s+|\s+$//g; warn "Result:\n\tEXTRALIBS: $lib\n\tLDLOADLIBS: $ldlib\n" if $verbose; wantarray ? ( $lib, '', $ldlib, '', ( $give_libs ? \@flibs : () ) ) : $lib; } 1;
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