ghc-filesystem: init at 1.5.4

pkgs/development/libraries/ghc_filesystem/default.nix

@@ -0,0 +1,22 @@
+{ stdenv, lib, cmake, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "filesystem";
+  version = "1.5.4";
+
+  src = fetchFromGitHub {
+    owner = "gulrak";
+    repo = "filesystem";
+    rev = "v${version}";
+    hash = "sha256-SvNUzKoNiSIM0no+A0NUT6hmeUH9SzgLQLrC5XOC0Ho=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = with lib; {
+    description = "header-only single-file C++ std::filesystem compatible helper library";
+    homepage = "https://github.com/gulrak/filesystem";
+    license = licenses.mit;
+    maintainers = with maintainers; [ lourkeur ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -14745,6 +14745,8 @@ in
   givaro_3 = callPackage ../development/libraries/givaro/3.nix {};
   givaro_3_7 = callPackage ../development/libraries/givaro/3.7.nix {};
 
+  ghc_filesystem = callPackage ../development/libraries/ghc_filesystem {};
+
   ghp-import = with python3Packages; toPythonApplication ghp-import;
 
   ghcid = haskellPackages.ghcid.bin;