I can't reproduce it on DreamHost (twins.dreamhost.com) with the info you provided. 
$ cat a.pl
use strict;
use warnings;
use feature qw( say );

use Text::CSV qw( );
use Encode qw( encode_utf8 );

say Text::CSV->VERSION;
say Text::CSV->is_xs() ? 'xs' : 'pp';
say Text::CSV->version;

my $csv = Text::CSV->new ({
   allow_whitespace => 1,
   binary           => 1,
   sep_char         => '|',
}) or die;

my $csv_file = encode_utf8(<<'__EOI__');
foo|bar|baz
dog|cat|cow
__EOI__

open(my $csv_fh, "<:encoding(utf8)", \$csv_file) or die;

say for $csv->column_names($csv->getline($csv_fh));

$ perl a.pl
1.06
xs
0.52
foo
bar
baz

[download]

And with a locally installed Perl 5.12.1 on the same machine: 

$ perl a.pl
1.20
xs
0.74
foo
bar
baz

[download]

In reply to Re^3: sv_upgrade error by ikegami
in thread sv_upgrade error by wrinkles

Title:
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