#### Beyond Linux® From Scratch (systemd Edition) - Version 10.1

### Chapter 10. Graphics and Font Libraries

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# gegl-0.4.28

## 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-10.1 platform.

### Package Information

- Download (HTTP): https://download.gimp.org/pub/gegl/0.4/gegl-0.4.28.tar.xz

- Download MD5 sum: 4111e0085c7077a506a67dc14d3514ed

- Download size: 4.7 MB

- Estimated disk space required: 89 MB (with tests)

- Estimated build time: 0.5 SBU (Using parallelism=4; with tests)

### gegl Dependencies

#### Required

babl-0.1.84 and JSON-GLib-1.6.2

#### Recommended

gobject-introspection-1.66.1, Graphviz-2.44.1, Pygments-2.8.0, and PyGObject-3.38.0

#### Optional

asciidoc-9.1.0, Cairo-1.17.2+f93fc72c03e, Exiv2-0.27.3, FFmpeg-4.3.2, gdk-pixbuf-2.42.2, gexiv2-0.12.2, Graphviz-2.44.1, GTK-Doc-1.33.2, JasPer-2.0.25, Little CMS-2.12, libjpeg-turbo-2.0.6 libpng-1.6.37, librsvg-2.50.3, LibTIFF-4.2.0, libwebp-1.2.0, Pango-1.48.2, Ruby-3.0.0, SDL2-2.0.14, v4l-utils-1.20.0, Vala-0.50.3, lensfun, libopenraw, libspiro, libumfpack, LuaJIT, MRG, and OpenEXR

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

## Installation of gegl

At first, adjust some test scripts to use Python 3 installed in LFS, instead of EOL'ed Python 2:

    sed '1s@python@&3@' -i tests/python/*.py

Install gegl by running the following commands:

    mkdir build &&
    cd    build &&

    meson --prefix=/usr .. &&
    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

Last updated on 2021-02-21 15:09:04 -0800

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