请教如何安装　Barcode-Code128-2.01

操作系统为CentOS 5.2 X86_64
安装前执行了如下操作：
yum install dg-devel
GDlibrary安装成功
GD也安装成功
perl -MCPAN -e "install 'GD::Text'"　　　--Ok
perl -MCPAN -e "install 'GD::Graph'"  　 --Ok

在Barcode-Code128-2.01目录下：
# perl Makefile.PL
# make
# make test
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/barcode....ok
t/gif........skipped: (no reason given)
t/png........ Failed 1/2 subtests

Test Summary Report
-------------------
t/gif    (Wstat: 0 Tests: 1 Failed: 1)
  Failed test:  1
  Parse errors: Bad plan.  You planned 0 tests but ran 1.
t/png    (Wstat: 0 Tests: 2 Failed: 1)
  Failed test:  2
Files=3, Tests=5,  0 wallclock secs ( 0.03 usr  0.01 sys +  0.11 cusr  0.03 csys =  0.18 CPU)
Result: FAIL
Failed 2/3 test programs. 2/5 subtests failed.
make: *** [test_dynamic] Error 255


想请教各位，指点一下怎样解决这个问题。
如何测试是不是gif png的问题，如果是还要做哪些进一步的操作。