gnu: Add libgff.

* gnu/packages/bioinformatics.scm (libgff): New variable.

gnu/packages/bioinformatics.scm

@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015, 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2014, 2015, 2016, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015, 2016, 2017 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2015, 2016 Pjotr Prins <pjotr.guix@thebird.nl>
 ;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
@@ -11109,3 +11109,26 @@ for alignment.  Pseudoalignment of reads preserves the key information needed
 for quantification, and kallisto is therefore not only fast, but also as
 accurate as existing quantification tools.")
     (license license:bsd-2)))
+
+(define-public libgff
+  (package
+    (name "libgff")
+    (version "1.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/Kingsford-Group/"
+                    "libgff/archive/v" version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0vc4nxyhlm6g9vvmx5l4lfs5pnvixsv1hiiy4kddf2y3p6jna8ls"))))
+    (build-system cmake-build-system)
+    (arguments `(#:tests? #f))          ; no tests included
+    (home-page "https://github.com/Kingsford-Group/libgff")
+    (synopsis "Parser library for reading/writing GFF files")
+    (description "This is a simple \"libraryfication\" of the GFF/GTF parsing
+code that is used in the Cufflinks codebase.  The goal of this library is to
+provide this functionality without the necessity of drawing in a heavy-weight
+dependency like SeqAn.")
+    (license (license:x11-style "http://www.boost.org/LICENSE_1_0.txt"))))