opensubdiv: Fix flaky build with CUDA and high parallelism

See upstream issue: https://github.com/PixarAnimationStudios/OpenSubdiv/issues/1313
2023-11-11 13:44:23 -05:00
parent 85f1ba3e51
commit 5d9e3ac039
1 changed files with 5 additions and 0 deletions
@@ -47,6 +47,11 @@ stdenv.mkDerivation rec {
      "-DNO_OPENCL=1"
    ];

+  preBuild = let maxBuildCores = 16; in lib.optionalString cudaSupport ''
+    # https://github.com/PixarAnimationStudios/OpenSubdiv/issues/1313
+    NIX_BUILD_CORES=$(( NIX_BUILD_CORES < ${toString maxBuildCores} ? NIX_BUILD_CORES : ${toString maxBuildCores} ))
+  '';
+
  postInstall = "rm $out/lib/*.a";

  meta = {