From 87da2a041474a275c1ed6838916a700cd045df05 Mon Sep 17 00:00:00 2001
From: Carsten Burstedde <burstedde@ins.uni-bonn.de>
Date: Mon, 5 Jul 2021 15:39:02 +0200
Subject: [PATCH] petsc: do not build with p4est on aarch64

---
 pkgs/development/libraries/science/math/petsc/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/science/math/petsc/default.nix b/pkgs/development/libraries/science/math/petsc/default.nix
index 921ac859b1bd..87689ddb827c 100644
--- a/pkgs/development/libraries/science/math/petsc/default.nix
+++ b/pkgs/development/libraries/science/math/petsc/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   };
 
   mpiSupport = !withp4est || p4est.mpiSupport;
-  withp4est = petsc-withp4est;
+  withp4est = !stdenv.isAarch64 && petsc-withp4est;
 
   nativeBuildInputs = [ python gfortran ];
   buildInputs = [ blas lapack ]