libnats-c: init at 2.1.0

Signed-off-by: Austin Seipp <aseipp@pobox.com>

pkgs/development/libraries/libnats-c/default.nix

@@ -0,0 +1,31 @@
+{ stdenv, fetchFromGitHub
+, cmake, protobuf, protobufc
+, libsodium, openssl
+}:
+
+stdenv.mkDerivation rec {
+  pname   = "libnats";
+  version = "2.1.0";
+
+  src = fetchFromGitHub {
+    owner  = "nats-io";
+    repo   = "nats.c";
+    rev    = "refs/tags/v${version}";
+    sha256 = "16a0f0gvrmyrqvmh6vinqny3qhm6wyzw5ijnn3r82b1gqlpws0fz";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ libsodium openssl protobuf protobufc ];
+
+  separateDebugInfo = true;
+  enableParallelBuilding = true;
+  outputs = [ "out" "dev" ];
+
+  meta = with stdenv.lib; {
+    description = "C API for the NATS messaging system";
+    homepage    = "https://github.com/nats-io/nats.c";
+    license     = licenses.asl20;
+    platforms   = platforms.unix;
+    maintainers = with maintainers; [ thoughtpolice ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -12036,6 +12036,10 @@ in
 
   libinjection = callPackage ../development/libraries/libinjection { };
 
+  libnats-c = callPackage ../development/libraries/libnats-c {
+    openssl = openssl_1_0_2;
+  };
+
   liburing = callPackage ../development/libraries/liburing { };
 
   librseq = callPackage ../development/libraries/librseq { };