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# Generated from DynaLoader_pm.PL

package DynaLoader;

#   And Gandalf said: 'Many folk like to know beforehand what is to
#   be set on the table; but those who have laboured to prepare the
#   feast like to keep their secret; for wonder makes the words of
#   praise louder.'

#   (Quote from Tolkien suggested by Anno Siegel.)
#
# See pod text at end of file for documentation.
# See also ext/DynaLoader/README in source tree for other information.
#
# Tim.Bunce@ig.co.uk, August 1994

BEGIN {
    $VERSION = '1.14';
}

use Config;

# enable debug/trace messages from DynaLoader perl code
$dl_debug = $ENV{PERL_DL_DEBUG} || 0 unless defined $dl_debug;

#
# Flags to alter dl_load_file behaviour.  Assigned bits:
#   0x01  make symbols available for linking later dl_load_file's.
#         (only known to work on Solaris 2 using dlopen(RTLD_GLOBAL))
#         (ignored under VMS; effect is built-in to image linking)
#
# This is called as a class method $module->dl_load_flags.  The
# definition here will be inherited and result on "default" loading
# behaviour unless a sub-class of DynaLoader defines its own version.
#

sub dl_load_flags { 0x00 }

($dl_dlext, $dl_so, $dlsrc) = @Config::Config{qw(dlext so dlsrc)};


$do_expand = 0;

@dl_require_symbols = ();       # names of symbols we need
@dl_resolve_using   = ();       # names of files to link with
@dl_library_path    = ();       # path to look for files

#XSLoader.pm may have added elements before we were required
#@dl_shared_objects  = ();       # shared objects for symbols we have 
#@dl_librefs         = ();       # things we have loaded
#@dl_modules         = ();       # Modules we have loaded

# This is a fix to support DLD's unfortunate desire to relink -lc
@dl_resolve_using = dl_findfile('-lc') if $dlsrc eq "dl_dld.xs";

# Initialise @dl_library_path with the 'standard' library path
# for this platform as determined by Configure.

push(@dl_library_path, split(' ', $Config::Config{libpth}));


my $ldlibpthname         = $Config::Config{ldlibpthname};
my $ldlibpthname_defined = defined $Config::Config{ldlibpthname};
my $pthsep               = $Config::Config{path_sep};

# Add to @dl_library_path any extra directories we can gather from environment
# during runtime.

if ($ldlibpthname_defined &&
    exists $ENV{$ldlibpthname}) {
    push(@dl_library_path, split(/$pthsep/, $ENV{$ldlibpthname}));
}

# E.g. HP-UX supports both its native SHLIB_PATH *and* LD_LIBRARY_PATH.

if ($ldlibpthname_defined &&
    $ldlibpthname ne 'LD_LIBRARY_PATH' &&
    exists $ENV{LD_LIBRARY_PATH}) {
    push(@dl_library_path, split(/$pthsep/, $ENV{LD_LIBRARY_PATH}));
}


# No prizes for guessing why we don't say 'bootstrap DynaLoader;' here.
# NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB
boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) &&
                                !defined(&dl_error);

if ($dl_debug) {
    print STDERR "DynaLoader.pm loaded (@INC, @dl_library_path)\n";
    print STDERR "DynaLoader not linked into this perl\n"
	    unless defined(&boot_DynaLoader);
}

1; # End of main code


sub croak   { require Carp; Carp::croak(@_)   }

sub bootstrap_inherit {
    my $module = $_[0];
    local *isa = *{"$module\::ISA"};
    local @isa = (@isa, 'DynaLoader');
    # Cannot goto due to delocalization.  Will report errors on a wrong line?
    bootstrap(@_);
}

sub bootstrap {
    # use local vars to enable $module.bs script to edit values
    local(@args) = @_;
    local($module) = $args[0];
    local(@dirs, $file);

    unless ($module) {
	require Carp;
	Carp::confess("Usage: DynaLoader::bootstrap(module)");
    }

    # A common error on platforms which don't support dynamic loading.
    # Since it's fatal and potentially confusing we give a detailed message.
    croak("Can't load module $module, dynamic loading not available in this perl.\n".
	"  (You may need to build a new perl executable which either supports\n".
	"  dynamic loading or has the $module module statically linked into it.)\n")