diff --git a/nix/sources.json b/nix/sources.json

index f109608ffdaceae6e013a596b03ccadf26d291a5..bc42ecaf7894472b56f4cd1f67ec1d06d053ba01 100644

--- a/nix/sources.json

+++ b/nix/sources.json

@@ -344,6 +344,20 @@ "type": "tarball",

     "url": "https://github.com/hfst/hfst/archive/a140e2868c15e9987d651aa3e6b344ec20ef3a33.tar.gz",

     "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"

 },

• "how-to-use-pvs-studio-free": {

•    "branch": "master",
  

•    "builtin": false,
  

•    "date": "2020-02-10T14:21:35Z",
  

•    "description": "How to use PVS-Studio for Free",
  

•    "homepage": "https://www.viva64.com/en/b/0457/",
  

•    "owner": "viva64",
  

•    "repo": "how-to-use-pvs-studio-free",
  

•    "rev": "182a5e730128755b12f44f39d8254e88397c9cce",
  

•    "sha256": "0rgpi6lrgka8s8xzx35qlgphp4z5449k7zs6hswl1q7w1kfh4flj",
  

•    "type": "tarball",
  

•    "url": "https://github.com/viva64/how-to-use-pvs-studio-free/archive/182a5e730128755b12f44f39d8254e88397c9cce.tar.gz",
  

•    "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
  

• },

 "jsonseq": {

     "branch": "master",

     "builtin": false,

diff --git a/pkgs/default.nix b/pkgs/default.nix

index f210fbbf102e8259e816f589cd8000a293df0897..2bb6d765bb1ea01f9a02a7bb68d746d23a414678 100644

--- a/pkgs/default.nix

+++ b/pkgs/default.nix

@@ -67,6 +67,7 @@

 ### DEVELOPMENT / TOOLS

 gef = callPackage ./development/tools/gef { };

• how-to-use-pvs-studio-free = callPackage ./development/tools/pvs-studio/how-to-use-pvs-studio-free.nix { };

 pvs-studio = callPackage ./development/tools/pvs-studio { };

 ### DEVELOPMENT / LIBRARIES

diff --git a/pkgs/development/tools/pvs-studio/how-to-use-pvs-studio-free.nix b/pkgs/development/tools/pvs-studio/how-to-use-pvs-studio-free.nix

new file mode 100644

index 0000000000000000000000000000000000000000..986e1360138b20984a3076a5a57715073d8c7980

--- /dev/null

+++ b/pkgs/development/tools/pvs-studio/how-to-use-pvs-studio-free.nix

@@ -0,0 +1,24 @@

+{ stdenv, cmake, sources }:

+let

• pname = "how-to-use-pvs-studio-free";

• date = stdenv.lib.substring 0 10 sources.how-to-use-pvs-studio-free.date;

• version = "unstable-" + date;

+in

+stdenv.mkDerivation {

• inherit pname version;

• src = sources.how-to-use-pvs-studio-free;

• nativeBuildInputs = [ cmake ];

• postPatch = stdenv.lib.optionalString stdenv.cc.isClang ''

• substituteInPlace CMakeLists.txt \

•  --replace "stdc++fs" "c++fs"
  

• '';

• meta = with stdenv.lib; {

• inherit (sources.how-to-use-pvs-studio-free) description homepage;

• license = licenses.asl20;

• maintainers = [ maintainers.sikmir ];

• platforms = platforms.unix;

• };

+}