#### Beyond Linux® From Scratch (systemd Edition) - Version 11.1

### Chapter 10. Graphics and Font Libraries

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# gegl-0.4.34

## Introduction to gegl

This package provides the GEneric Graphics Library, which is a graph based image processing format.

This package is known to build and work properly using an LFS-11.1 platform.

### Package Information

- Download (HTTP): https://download.gimp.org/pub/gegl/0.4/gegl-0.4.34.tar.xz

- Download MD5 sum: 3701f72771d2e8013c6877405cb409fe

- Download size: 5.4 MB

- Estimated disk space required: 99 MB (with tests)

- Estimated build time: 0.7 SBU (Using parallelism=4; with tests)

### gegl Dependencies

#### Required

babl-0.1.88, JSON-GLib-1.6.6, libjpeg-turbo-2.1.2, and libpng-1.6.37

#### Recommended

gobject-introspection-1.70.0, Graphviz-2.50.0, Pygments-2.11.2, and PyGObject-3.42.0

#### Optional

asciidoc-10.1.1, Cairo-1.17.4, Exiv2-0.27.5, FFmpeg-4.4.1, gdk-pixbuf-2.42.6, gexiv2-0.14.0, GTK-Doc-1.33.2, JasPer-2.0.33, Little CMS-2.13.1, librsvg-2.52.6, libtiff-4.3.0, libwebp-1.2.2, Pango-1.50.4, Ruby-3.1.0, SDL2-2.0.20, v4l-utils-1.22.1, Vala-0.54.7, libspiro-20200505, lensfun, libopenraw, libumfpack, LuaJIT, MRG, and OpenEXR

User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/gegl

## Installation of gegl

If installing over a previous version of gegl, one module needs to be removed. As the `root` user, run:

    rm -f /usr/lib/gegl-0.4/vector-fill.so

Install gegl by running the following commands:

    mkdir build &&
    cd    build &&

    meson --prefix=/usr --buildtype=release .. &&
    ninja

To test the results, issue: ninja test.

Now, as the `root` user:

    ninja install

## Command Explanations

`-Ddocs=true`: Build and install documentation (requires GTK-Doc-1.33.2,).

## Contents

Installed Programs: gegl and gegl-imgcmp
Installed Libraries: libgegl-0.4.so, libgegl-npd-0.4.so, libgegl-sc-0.4.so, and modules in /usr/lib/gegl-0.4
Installed Directories: /usr/lib/gegl-0.4 and /usr/include/gegl-0.4

### Short Descriptions

gegl | is a commandline tool for working with the XML data model
gegl-imgcmp | is a simple image difference detection tool for use in regression testing
`libgegl-0.4.so` | provides infrastructure to do demand based cached non destructive image editing on larger than RAM buffers
`libgegl-npd-0.4.so` | is the GEGL N-point image deformation library
`libgegl-sc-0.4.so` | is the GEGL Seamless Cloning library

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