How To Install libghc-fclabels-dev on Ubuntu 18.04

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In this tutorial we learn how to install libghc-fclabels-dev on Ubuntu 18.04. libghc-fclabels-dev is first-class accessor labels

Introduction

In this tutorial we learn how to install libghc-fclabels-dev on Ubuntu 18.04.

What is libghc-fclabels-dev

libghc-fclabels-dev is:

This package provides first class labels that can act as
bidirectional record fields. The labels can be derived
automatically using Template Haskell which means you don’t have
to write any boilerplate yourself. The labels are implemented as
lenses and are fully composable. Labels can be used to /get/,
/set/ and /modify/ parts of a datatype in a consistent way.

See “Data.Label” for an introductory explanation.

Internally lenses are not tied to Haskell functions directly,
but are implemented as arrows. Arrows allow the lenses to be run
in custom computational contexts. This approach allows us to
make partial lenses that point to fields of multi-constructor
datatypes in an elegant way.

See the “Data.Label.Maybe” module for the use of partial labels.

1.1.1.0 -> 1.1.2

  • Added partial set/modify versions that act as identity
    when the constructor field is not available.

Author: Sebastiaan Visser, Erik Hesselink, Chris Eidhof, Sjoerd Visscher
with lots of help and feedback from others.
Upstream-Maintainer: Sebastiaan Visser [email protected]

This package contains the normal library files.

There are three methods to install libghc-fclabels-dev on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install libghc-fclabels-dev Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install libghc-fclabels-dev using apt-get by running the following command:

sudo apt-get -y install libghc-fclabels-dev

Install libghc-fclabels-dev Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libghc-fclabels-dev using apt by running the following command:

sudo apt -y install libghc-fclabels-dev

Install libghc-fclabels-dev Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install libghc-fclabels-dev using aptitude by running the following command:

sudo aptitude -y install libghc-fclabels-dev

How To Uninstall libghc-fclabels-dev on Ubuntu 18.04

To uninstall only the libghc-fclabels-dev package we can use the following command:

sudo apt-get remove libghc-fclabels-dev

Uninstall libghc-fclabels-dev And Its Dependencies

To uninstall libghc-fclabels-dev and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libghc-fclabels-dev

Remove libghc-fclabels-dev Configurations and Data

To remove libghc-fclabels-dev configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libghc-fclabels-dev

Remove libghc-fclabels-dev configuration, data, and all of its dependencies

We can use the following command to remove libghc-fclabels-dev configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libghc-fclabels-dev

References

Summary

In this tutorial we learn how to install libghc-fclabels-dev package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.

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