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Description of problem:
on a custom perl program strange warning occurs

Version-Release number of selected component (if applicable):
perl-5.16.3-292.el7.x86_64


How reproducible:
always using /usr/share/ipv6calc/tools/DBIP-generate-db.pl from ipv6calc


Actual results:
overload arg '..' is invalid at /usr/share/perl5/Math/BigInt.pm line 155.


Expected results:
Not such warning


Additional info:
Looks like this issue is already known:
https://rt.cpan.org/Public/Bug/Display.html?id=80182
and a patch is available

Created attachment 1339157 [details]
Patch for fix of Math::BigInt overload warning

How to test: 

1) Install the latest perl
2) Run command:
$ perl -Wc -e 'use Math::BigInt;'

Before change:
overload arg '..' is invalid at /usr/share/perl5/Math/BigInt.pm line 155.
-e syntax OK

After:
-e syntax OK

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2018:3183