gnu: Add exonerate.

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

gnu/packages/bioinformatics.scm

@@ -52,6 +52,7 @@
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages gd)
   #:use-module (gnu packages gtk)
+  #:use-module (gnu packages glib)
   #:use-module (gnu packages groff)
   #:use-module (gnu packages image)
   #:use-module (gnu packages imagemagick)
@@ -1996,6 +1997,36 @@ in structured XML format.  This can eliminate the need for writing custom
 software to answer ad hoc questions.")
     (license license:public-domain)))
 
+(define-public exonerate
+  (package
+    (name "exonerate")
+    (version "2.4.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append
+         "http://ftp.ebi.ac.uk/pub/software/vertebrategenomics/exonerate/"
+         "exonerate-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0hj0m9xygiqsdxvbg79wq579kbrx1mdrabi2bzqz2zn9qwfjcjgq"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:parallel-build? #f)) ; Building in parallel fails on some machines.
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("glib" ,glib)))
+    (home-page
+     "https://www.ebi.ac.uk/about/vertebrate-genomics/software/exonerate")
+    (synopsis "Generic tool for biological sequence alignment")
+    (description
+     "Exonerate is a generic tool for pairwise sequence comparison.  It allows
+the alignment of sequences using a many alignment models, either exhaustive
+dynamic programming or a variety of heuristics.")
+    (license license:gpl3)))
+
 (define-public express
   (package
     (name "express")