qrupdate: disable a failing test on x86_64-darwin

pkgs/development/libraries/qrupdate/default.nix

@@ -30,6 +30,11 @@ stdenv.mkDerivation (finalAttrs: {
     ])}"
   ];
 
+  # https://github.com/mpimd-csc/qrupdate-ng/issues/4
+  patches = lib.optionals (stdenv.isDarwin && stdenv.isx86_64) [
+    ./disable-zch1dn-test.patch
+  ];
+
   doCheck = true;
 
   nativeBuildInputs = [

pkgs/development/libraries/qrupdate/disable-zch1dn-test.patch

@@ -0,0 +1,13 @@
+diff --git i/test/tch1dn.f w/test/tch1dn.f
+index 25ec990..3f83e7e 100644
+--- i/test/tch1dn.f
++++ w/test/tch1dn.f
+@@ -34,8 +34,6 @@ c
+       call dtest(n)
+       write (*,*) 'cch1dn test:'
+       call ctest(n)
+-      write (*,*) 'zch1dn test:'
+-      call ztest(n)
+ 
+       call pstats
+       end program