2 files changed, 67 insertions, 0 deletions
diff --git a/pkgs/development/python-modules/chiavdf/default.nix b/pkgs/development/python-modules/chiavdf/default.nix
new file mode 100644
index 000000000000..deb7d21adc76
--- /dev/null
+++ b/pkgs/development/python-modules/chiavdf/default.nix
@@ -0,0 +1,53 @@
+{ lib
+, stdenv
+, buildPythonPackage
+, fetchPypi
+, setuptools-scm
+, substituteAll
+, cmake
+, boost
+, gmp
+, pybind11
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "chiavdf";
+  version = "1.0.1";
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-z0od/VrH580+9641lKNI7jbVMlJZKCWnoT+GljnFxmU=";
+  };
+
+  patches = [
+    # prevent CMake from trying to get libraries on the Internet
+    (substituteAll {
+      src = ./dont_fetch_dependencies.patch;
+      pybind11_src = pybind11.src;
+    })
+  ];
+
+  # x86 instructions are needed for this component
+  BUILD_VDF_CLIENT = lib.optionalString (!stdenv.isx86_64) "N";
+
+  nativeBuildInputs = [ cmake setuptools-scm ];
+
+  buildInputs = [ boost gmp pybind11 ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  # CMake needs to be run by setuptools rather than by its hook
+  dontConfigure = true;
+
+  meta = with lib; {
+    description = "Chia verifiable delay function utilities";
+    homepage = "https://www.chia.net/";
+    license = licenses.asl20;
+    maintainers = teams.chia.members;
+  };
+}
diff --git a/pkgs/development/python-modules/chiavdf/dont_fetch_dependencies.patch b/pkgs/development/python-modules/chiavdf/dont_fetch_dependencies.patch
new file mode 100644
index 000000000000..9b49db81fcf5
--- /dev/null
+++ b/pkgs/development/python-modules/chiavdf/dont_fetch_dependencies.patch
@@ -0,0 +1,14 @@
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index c975128..a9f6910 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -31,8 +31,7 @@ include(FetchContent)
+ 
+ FetchContent_Declare(
+   pybind11-src
+-  GIT_REPOSITORY https://github.com/pybind/pybind11.git
+-  GIT_TAG        v2.6.2
++  SOURCE_DIR @pybind11_src@
+ )
+ FetchContent_MakeAvailable(pybind11-src)
+