Perl Question

[Jeffrey Pyne]

What is going on here?  I looked through the Perl Mongers archive and didn't
see anything relevant to my problem.  I fruitlessly searched Google, too,
but I'm sure I'm just not using the right keywords.  I was hoping maybe
someone here can give me a "Hey, dumb@$$, you forgot to...."

$ cat /home/jpyne/bin/foo
#!/usr/bin/perl

use lib '/home/jpyne/lib';
use Bar;
use Fcntl qw(O_CREAT O_EXCL O_WRONLY);

foo();
bar();

sub foo {
	$FOOLOCKFILE = "/var/tmp/foo.lk";
	sysopen FOOLOCKFILE, $FOOLOCKFILE, O_WRONLY|O_CREAT|O_EXCL, 0600
		or die "Could not create $FOOLOCKFILE: $!\n";
	print FOOLOCKFILE "foo";
	close FOOLOCKFILE;
}


$ cat /home/jpyne/lib/Bar.pm
#!/usr/bin/perl

use Fcntl qw(O_CREAT O_EXCL O_WRONLY);

package Bar;
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(bar);

sub bar {
	$BARLOCKFILE = "/var/tmp/bar.lk";
	sysopen BARLOCKFILE, $BARLOCKFILE, O_WRONLY|O_CREAT|O_EXCL, 0600
		or die "Could not create $BARLOCKFILE: $!\n";      
	print BARLOCKFILE "bar";
	close BARLOCKFILE;
}

$ ./bin/foo
Could not create /var/tmp/bar.lk: No such file or directory

$ ls /var/tmp/*lk
/var/tmp/foo.lk

Why is it that when I call sysopen from MAIN{}, it properly creates a file,
but not when I call it from within my module?  I know I'm missing something
stoopid....

TIA

~Jeff