cpp-gsl: init at unstable-2018-02-15 (#34998)

pkgs/development/libraries/cpp-gsl/default.nix

@@ -0,0 +1,29 @@
+{ stdenv, fetchFromGitHub, cmake, catch }:
+
+stdenv.mkDerivation rec {
+  pname = "GSL-unstable";
+  version = "2017-02-15";
+  name = "${pname}-${version}";
+
+  src = fetchFromGitHub {
+    owner = "Microsoft";
+    repo = "GSL";
+    rev = "c87c123d1b3e64ae2cf725584f0c004da4d90f1c";
+    sha256 = "0h8py468bvxnydkjs352d7a9s8hk0ihc7msjkcnzj2d7nzp5nsc1";
+  };
+
+  nativeBuildInputs = [ cmake catch ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/Microsoft/GSL;
+    description = "C++ Core Guideline support library";
+    longDescription = ''
+     The Guideline Support Library (GSL) contains functions and types that are suggested for
+     use by the C++ Core Guidelines maintained by the Standard C++ Foundation.
+     This package contains Microsoft's implementation of GSL.
+    '';
+    platforms = stdenv.lib.platforms.unix;
+    license = licenses.mit;
+    maintainers = with maintainers; [ yuriaisaka ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -5748,7 +5748,8 @@ with pkgs;
 
   compcert = callPackage ../development/compilers/compcert { };
 
-
+  cpp-gsl = callPackage ../development/libraries/cpp-gsl { };
+  
   # Users installing via `nix-env` will likely be using the REPL,
   # which has a hard dependency on Z3, so make sure it is available.
   cryptol = haskellPackages.cryptol.overrideDerivation (oldAttrs: {