libnsl: init at 1.1.0

This code was formerly part of glibc, but is now standalone to
be able to link against TI-RPC for IPv6 support.

pkgs/development/libraries/libnsl/default.nix

···
+{ stdenv, fetchFromGitHub, autoreconfHook, libtirpc, pkgconfig }:
+
+stdenv.mkDerivation rec {
+  name = "libnsl-${version}";
+  version = "1.1.0";
+
+  src = fetchFromGitHub {
+    owner = "thkukuk";
+    repo = "libnsl";
+    rev = "libnsl-${version}";
+    sha256 = "0h8br0gmgw3fp5fmy6bfbj1qlk9hry1ssg25ssjgxbd8spczpscs";
+  };
+
+  nativeBuildInputs = [ autoreconfHook pkgconfig ];
+  buildInputs = [ libtirpc ];
+
+  meta = with stdenv.lib; {
+    description = "Client interface library for NIS(YP) and NIS+";
+    homepage = https://github.com/thkukuk/libnsl;
+    license = licenses.lgpl21;
+    maintainers = [ maintainers.dezgeg ];
+    platforms = platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

···
 
   libnice = callPackage ../development/libraries/libnice { };
 
+  libnsl = callPackage ../development/libraries/libnsl { };
+
   liboping = callPackage ../development/libraries/liboping { };
 
   libplist = callPackage ../development/libraries/libplist { };