parallel-hashmap: init at 1.4.0

default.nix

@@ -80,6 +80,8 @@
 
   mppp = pkgs.callPackage ./pkgs/mppp { };
 
+  parallel-hashmap = pkgs.callPackage ./pkgs/parallel-hashmap { };
+
   pareto = pkgs.python3Packages.callPackage ./pkgs/pareto { };
 
   pegtl = pkgs.callPackage ./pkgs/pegtl { };

pkgs/parallel-hashmap/default.nix

@@ -0,0 +1,25 @@
+{ lib, stdenv, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "parallel-hashmap";
+  version = "1.4.0";
+
+  src = fetchFromGitHub {
+    owner = "greg7mdp";
+    repo = "parallel-hashmap";
+    rev = "v${version}";
+    sha256 = "sha256-19rWcnMtWgqYlLylUjgI/p3aAM0Ois3CKoMuMmLQHmM=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  cmakeFlags = [ "-DPHMAP_INSTALL=ON" "-DPHMAP_BUILD_TESTS=OFF" "-DPHMAP_BUILD_EXAMPLES=OFF" ];
+
+  meta = with lib; {
+    description = "Very efficient, memory friendly, concurrent, drop-in replacement for std::unordered_map, std::unordered_set, std::map and std::set";
+    homepage = "https://github.com/greg7mdp/parallel-hashmap";
+    license = licenses.asl20;
+    platforms = platforms.all;
+    #maintainers = with maintainers; [ foolnotion ];
+  };
+}