gnu: Add julia-genericschur.

* gnu/packages/julia-xyz.scm (julia-genericschur-0.3.0): New variable.

gnu/packages/julia-xyz.scm

@@ -1955,3 +1955,25 @@ were formerly part of Base in early versions of Julia.")
     (description "This is a Julia interface to libquadmath, providing a
 Float128 type corresponding to the IEEE754 binary128 floating point format.")
     (license license:expat)))
+
+(define-public julia-genericschur
+      (package
+       (name "julia-genericschur")
+       (version "0.3.0")
+       (source
+        (origin
+          (method git-fetch)
+          (uri (git-reference
+                (url "https://github.com/RalphAS/GenericSchur.jl")
+                (commit (string-append "v" version))))
+          (file-name "GenericSchur")
+          (sha256
+           (base32 "1hr8zkanbrysqzr61rwhbv1a306zfcfrjjw96whrxy7fm4qf9j6v"))))
+       (build-system julia-build-system)
+       (home-page "https://github.com/RalphAS/GenericSchur.jl")
+       (synopsis "Julia package for Schur decomposition of matrices with
+generic element types")
+       (description "Schur decomposition for matrices of generic element types
+in Julia.  The Schur decomposition is the workhorse for eigensystem analysis
+of dense non-symmetric matrices.")
+       (license license:expat)))