It tells me it is a "Red Hat Enterprise Linux Server release 6.3 (Santiago)" but I suspect it might be CentOS.

./Configure -des -Dprefix=/a/it/perl5-15.1

The /a is an NFS. My suspicion is that the usernames and ids have some issues. I run as user "abc" but the files I create have owner "def" and group "xyz". Also I noticed user "abc" has two entries in /etc/passwd

The local IT team is working on fixing the userids and usernames, but I am not sure if this is the source of the problem,