From 7a53bd61a02e77074aca2693ba4909f196d5ce69 Mon Sep 17 00:00:00 2001
From: Vinicius Monego <monego@posteo.net>
Date: Sun, 30 Jul 2023 11:16:38 -0300
Subject: gnu: Add hmat.

* gnu/packages/maths.scm (hmat): New variable.
---
 gnu/packages/maths.scm | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index efb0f99181..31fd3cebee 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -1292,6 +1292,30 @@ plotting engine by third-party applications like Octave.")
     (license (license:fsf-free
               "http://gnuplot.cvs.sourceforge.net/gnuplot/gnuplot/Copyright"))))
 
+(define-public hmat
+  (package
+    (name "hmat")
+    (version "1.9.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/jeromerobert/hmat-oss")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0ssjzf3sdhn80w03bhp694s413222cl0100bf36mx70q3a1b6vi5"))))
+    (build-system cmake-build-system)
+    (arguments
+     ;; Examples are the tests.
+     (list #:configure-flags #~(list "-DBUILD_EXAMPLES=ON")))
+    (inputs (list openblas))
+    (home-page "https://github.com/jeromerobert/hmat-oss")
+    (synopsis "Hierarchical matrix library")
+    (description "@code{hmat-oss} is hierarchical matrix library written in
+C++ with a C API.  It contains a LU and LLt solver, and a few other things.")
+    (license license:gpl2+)))
+
 (define-public gctp
   (package
     (name "gctp")
-- 
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