[bug#66129] [PATCH v2 05/20] gnu: Add suitesparse-camd.

[David Elsing <david.elsing@posteo.net>]

* gnu/packages/maths.scm (suitesparse-camd): New variable.
---
 gnu/packages/maths.scm | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index f2c6f136a8..875e7dc391 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -5051,6 +5051,48 @@ (define-public suitesparse-btf
 matrix into block upper triangular form.")
     (license license:lgpl2.1+)))
 
+(define-public suitesparse-camd
+  (package
+    (name "suitesparse-camd")
+    (version "3.2.0")
+    (source (suitesparse-package-src name "CAMD"))
+    (build-system cmake-build-system)
+    (arguments
+     (list
+      #:tests? #f
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'set-cmake-module-path
+            (lambda _
+              (substitute* "CMakeLists.txt"
+                (("set.*CMAKE_MODULE_PATH.*")
+                 (string-append "set(CMAKE_MODULE_PATH "
+                                #$suitesparse-config "/lib/cmake/SuiteSparse)\n"
+                                "set(DUMMY\n")))))
+          (add-after 'build 'build-doc
+            (lambda _
+              (with-directory-excursion "../source/Doc"
+                (invoke "make"))))
+          (add-after 'install 'install-doc
+            (lambda _
+              (install-file "../source/Doc/CAMD_UserGuide.pdf"
+                            (string-append #$output "/share/doc/"
+                                           #$name "-" #$version))))
+          (replace 'install-license-files
+            (lambda _
+              (install-file "../source/Doc/License.txt"
+                            (string-append #$output "/share/doc/"
+                                           #$name "-" #$version)))))))
+    (inputs (list suitesparse-config))
+    (native-inputs (list (texlive-updmap.cfg '())))
+    (home-page "https://people.engr.tamu.edu/davis/suitesparse.html")
+    (synopsis "Sparse matrix ordering for Cholesky factorization with constraints")
+    (description "CAMD is a set of routines for ordering a sparse matrix prior
+to Cholesky factorization (or for LU factorization with diagonal pivoting).
+It is a variant of AMD which has the the option to apply constraints to the
+ordering.")
+    (license license:bsd-3)))
+
 (define-public suitesparse
   (package
     (name "suitesparse")
-- 
2.41.0