>From bb41efffc5258b0fe79b744e96981411b94e6aad Mon Sep 17 00:00:00 2001
From: Roel Janssen <address@hidden>
Date: Thu, 7 Apr 2016 22:45:01 +0200
Subject: [PATCH] gnu: Add nlopt.

* gnu/packages/maths.scm (nlopt): New variable.
---
 gnu/packages/maths.scm | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index adebf09..6b9d79d 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -911,6 +911,26 @@ sparse system of linear equations A x = b using Guassian elimination.")
     (inputs
      (alist-delete "pt-scotch" (package-inputs mumps-openmpi)))))
 
+(define-public nlopt
+  (package
+    (name "nlopt")
+    (version "2.4.2")
+    (source (origin
+      (method url-fetch)
+      (uri (string-append "http://ab-initio.mit.edu/nlopt/nlopt-"
+                          version ".tar.gz"))
+      (sha256
+       (base32 "12cfkkhcdf4zmb6h7y6qvvdvqjs2xf9sjpa3rl3bq76px4yn76c0"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:configure-flags '("--enable-shared"))) ; Also create a shared library.
+    (home-page "http://ab-initio.mit.edu/wiki/")
+    (synopsis "Library for non-linear optimization")
+    (description "NLopt is a library for nonlinear optimization, providing a
+common interface for a number of different free optimization routines available
+online as well as original implementations of various other algorithms.")
+    (license license:lgpl3)))
+
 (define-public superlu
   (package
     (name "superlu")
-- 
2.5.5