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gnu: Add libimagequant.

* gnu/packages/image.scm (libimagequant): New variable.
This commit is contained in:
Hartmut Goebel 2019-07-11 22:20:18 +02:00
parent f24276de9a
commit 8db1bd188b
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@ -14,7 +14,7 @@
;;; Copyright © 2016, 2017 Arun Isaac <arunisaac@systemreboot.net>
;;; Copyright © 2016, 2017 Kei Kebreau <kkebreau@posteo.net>
;;; Copyright © 2017 ng0 <ng0@n0.is>
;;; Copyright © 2017 Hartmut Goebel <h.goebel@crazy-compilers.com>
;;; Copyright © 2017,2019 Hartmut Goebel <h.goebel@crazy-compilers.com>
;;; Copyright © 2017 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
@ -313,6 +313,30 @@ files. It can compress them as much as 40% losslessly.")
Currently all documentation resides in @file{pnglite.h}.")
(license license:zlib))))
(define-public libimagequant
(package
(name "libimagequant")
(version "2.12.3")
(source
(origin
(method git-fetch)
(uri (git-reference
(url "https://github.com/ImageOptim/libimagequant.git")
(commit version)))
(file-name (git-file-name name version))
(sha256
(base32 "0qsfq1kv1m5jzn9v9iz0bac66k4clcis1c9877qabnwzwmwma5v0"))))
(build-system gnu-build-system)
(arguments
'(#:tests? #f)) ; no check target
(home-page "https://pngquant.org/lib/")
(synopsis "Image palette quantization library")
(description "libimagequant is a small, portable C library for
high-quality conversion of RGBA images to 8-bit indexed-color (palette)
images. This library can significantly reduces file sizes and powers pngquant
and other PNG optimizers.")
(license license:gpl3+)))
(define-public libjpeg
(package
(name "libjpeg")