gnu: dune-pdelab: Update to 2.7.1.

* gnu/packages/maths.scm (dune-pdelab): Update to 2.7.1.
  [version]: Use `git-version` to compute the version string.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/maths.scm

@@ -6840,44 +6840,47 @@ implemented as callable objects, and bases of finite element spaces.")
     (license (list license:lgpl3+ license:gpl2))))
 
 (define-public dune-pdelab
-  (package
+  ;; This was the last commit on the releases/2.7 branch as of 2021-12-17,
-    (name "dune-pdelab")
+  ;; unfortunately there was no tag for any 2.7 release.
-    (version "2.7.0-git-476fe437")
+  (let ((commit "09aef74d95661d18a7789d2f517ae77797eec738"))
-    (source
+    (package
-     (origin
+      (name "dune-pdelab")
-       (method git-fetch)
+      (version (git-version "2.7.1" "0" commit))
-       (uri (git-reference
+      (source
-             (url "https://gitlab.dune-project.org/pdelab/dune-pdelab")
+       (origin
-             (commit "476fe43763fa6f459c5e4658e2a2b4b5582db834")))
+         (method git-fetch)
-       (file-name (git-file-name name version))
+         (uri (git-reference
-       (sha256
+               (url "https://gitlab.dune-project.org/pdelab/dune-pdelab")
-        (base32
+               (commit commit)))
-         "0cs36piqzn6rq0j2ih3ab3q3q9yg199wk72k5qi86pkzh7i7fdn1"))))
+         (file-name (git-file-name name version))
-    (build-system cmake-build-system)
+         (sha256
-    (arguments '(#:tests? #f)) ; XXX: the tests cannot be compiled
+          (base32
-    (inputs
+           "0nv69ayr4gln9m1s94z9zkrxqi8nzar3z6awnvgqz595nmjf82ac"))))
-     (list dune-common
+      (build-system cmake-build-system)
-           dune-istl
+      (arguments '(#:tests? #f)) ; XXX: the tests cannot be compiled
-           dune-localfunctions
+      (inputs
-           dune-geometry
+       (list dune-common
-           dune-grid
+             dune-istl
-           dune-typetree
+             dune-localfunctions
-           dune-functions
+             dune-geometry
-           ;; Optional
+             dune-grid
-           openblas
+             dune-typetree
-           eigen
+             dune-functions
-           metis
+             ;; Optional
-           python
+             openblas
-           superlu
+             eigen
-           gmp))
+             metis
-    (native-inputs
+             python
-     (list gfortran pkg-config))
+             superlu
-    (home-page "https://dune-project.org/")
+             gmp))
-    (synopsis "Differential equations solver toolbox")
+      (native-inputs
-    (description "PDELab is a partial differential equations solver toolbox
+       (list gfortran pkg-config))
+      (home-page "https://dune-project.org/")
+      (synopsis "Differential equations solver toolbox")
+      (description "PDELab is a partial differential equations solver toolbox
 built on top of DUNE, the Distributed and Unified Numerics Environment.")
-    ;; Either GPL version 2 with "runtime exception" or LGPLv3+.
+      ;; Either GPL version 2 with "runtime exception" or LGPLv3+.
-    (license (list license:lgpl3+ license:gpl2))))
+      (license (list license:lgpl3+ license:gpl2)))))
 
 (define add-openmpi-to-dune-package
   (let ((dune-package?