How To Install perl-Lexical-SealRequireHints on CentOS 7
Introduction
In this tutorial we learn how to install perl-Lexical-SealRequireHints on CentOS 7.
What is perl-Lexical-SealRequireHints
This module works around two historical bugs in Perl’s handling of the %^H (lexical hints) variable. One bug causes lexical state in one file to leak into another that is required/used from it. This bug, [perl #68590], was present from Perl 5.6 up to Perl 5.10, fixed in Perl 5.11.0. The second bug causes lexical state (normally a blank %^H once the first bug is fixed) to leak outwards from utf8.pm, if it is automatically loaded during Unicode regular expression matching, into whatever source is compiling at the time of the regexp match. This bug, [perl #73174], was present from Perl 5.8.7 up to Perl 5.11.5, fixed in Perl 5.12.0.
We can use yum or dnf to install perl-Lexical-SealRequireHints on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install perl-Lexical-SealRequireHints.
Install perl-Lexical-SealRequireHints on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install perl-Lexical-SealRequireHints using yum by running the following command:
sudo yum -y install perl-Lexical-SealRequireHints
Install perl-Lexical-SealRequireHints on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install perl-Lexical-SealRequireHints using dnf by running the following command:
sudo dnf -y install perl-Lexical-SealRequireHints
How To Uninstall perl-Lexical-SealRequireHints on CentOS 7
To uninstall only the perl-Lexical-SealRequireHints package we can use the following command:
sudo dnf remove perl-Lexical-SealRequireHints
References
Summary
In this tutorial we learn how to install perl-Lexical-SealRequireHints on CentOS 7 using yum and dnf.
