From d896a4d2ff1ffd7a5a41c41509f9516ddf7c1934 Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Thu, 8 Dec 2022 16:08:08 +0200
Subject: [PATCH] gnu: suitesparse: Skip building graphblas on riscv64-linux.

* gnu/packages/maths.scm (suitesparse)[arguments]: Add a phase when
building for riscv64-linux to skip building graphblas.
---
 gnu/packages/maths.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 27b8eaf60d..aee050735e 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -4977,6 +4977,15 @@ (define-public suitesparse
              "library")
        #:phases
        (modify-phases %standard-phases
+         ,@(if (target-riscv64?)
+             ;; GraphBLAS FTBFS on riscv64-linux
+             `((add-after 'unpack 'skip-graphblas
+                 (lambda _
+                   (substitute* "Makefile"
+                     ((".*cd GraphBLAS.*") "")
+                     (("metisinstall gbinstall moninstall")
+                     "metisinstall moninstall")))))
+             '())
          (delete 'configure))))         ;no configure script
     (inputs
      (list tbb openblas gmp mpfr metis))