windows.dlfcn: init at 1.3.1

pkgs/os-specific/windows/default.nix

@@ -6,6 +6,8 @@ lib.makeScope newScope (self: with self; {
 
   cygwinSetup = callPackage ./cygwin-setup { };
 
+  dlfcn = callPackage ./dlfcn { };
+
   jom = callPackage ./jom { };
 
   w32api = callPackage ./w32api { };

pkgs/os-specific/windows/dlfcn/default.nix

@@ -0,0 +1,23 @@
+{ stdenv, lib, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "dlfcn";
+  version = "1.3.1";
+
+  src = fetchFromGitHub {
+    owner = "dlfcn-win32";
+    repo = "dlfcn-win32";
+    rev = "v${version}";
+    sha256 = "sha256-ljVTMBiGp8TPufrQcK4zQtcVH1To4zcfBAbUOb+v910=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = with lib; {
+    homepage = "https://github.com/dlfcn-win32/dlfcn-win32";
+    description = "Set of functions that allows runtime dynamic library loading";
+    license = licenses.mit;
+    platforms = platforms.windows;
+    maintainers = with maintainers; [ marius851000 ];
+  };
+}