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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 = '6.68';
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' 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";
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;
foreach my $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 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]+" ) ) {
# 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 ( -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/\
# ${TARGET_BINARY_INTERFACE:-m88kdgux}/usr/lib/libm.a
#
# , the compilation tools expand the environment variables.)
}
else {
warn "$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 "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 = keys %libs_seen;
return ( '', '', '', '', ( $give_libs ? \@libs : () ) ) unless @extralibs;
# make sure paths with spaces are properly quoted
@extralibs = map { /\s/ ? qq["$_"] : $_ } @extralibs;
@libs = map { /\s/ ? qq["$_"] : $_ } @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;
$extensions{ $Config{'lib_ext'} } = 1 if $Config{'lib_ext'};
$extensions{".dll.a"} = 1 if $extensions{".a"};
$extensions{".lib"} = 1;
return [ keys %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'
);
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
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 = $self->fixpath( $dir, 1 );
}
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 ) {
# 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 "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;
warn "Result:\n\tEXTRALIBS: $lib\n\tLDLOADLIBS: $ldlib\n" if $verbose;
wantarray ? ( $lib, '', $ldlib, '', ( $give_libs ? \@flibs : () ) ) : $lib;
}
1;
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