protobufc: Add version 1.1.0 as the default

pkgs/development/libraries/protobufc/1.0.nix

@@ -0,0 +1,11 @@
+{ callPackage, fetchFromGitHub, ... } @ args:
+
+callPackage ./generic.nix (args // rec {
+  version = "1.0.2";
+  src = fetchFromGitHub {
+    owner = "protobuf-c";
+    repo = "protobuf-c";
+    rev = "v${version}";
+    sha256 = "1harabw7qdgcmh098664xkcv8bkyach6i35sisc40yhvagr3fzsz";
+  };
+})

pkgs/development/libraries/protobufc/1.1.nix

@@ -0,0 +1,11 @@
+{ callPackage, fetchFromGitHub, ... } @ args:
+
+callPackage ./generic.nix (args // rec {
+  version = "1.1.0";
+  src = fetchFromGitHub {
+    owner = "protobuf-c";
+    repo = "protobuf-c";
+    rev = "v${version}";
+    sha256 = "11j9vg55a732v14cki4721ipr942c4krr562gliqmnlwvyz0hlyb";
+  };
+})

pkgs/development/libraries/protobufc/generic.nix

@@ -1,15 +1,12 @@
-{ stdenv, fetchFromGitHub, autoreconfHook, pkgconfig, protobuf, zlib }:
+{ stdenv, src, version
+, autoreconfHook, pkgconfig, protobuf, zlib
+, ...
+}:
 
 stdenv.mkDerivation rec {
   name = "protobuf-c-${version}";
-  version = "1.0.2";
 
-  src = fetchFromGitHub {
-    owner = "protobuf-c";
-    repo = "protobuf-c";
-    rev = "v${version}";
-    sha256 = "1harabw7qdgcmh098664xkcv8bkyach6i35sisc40yhvagr3fzsz";
-  };
+  inherit src;
 
   buildInputs = [ autoreconfHook pkgconfig protobuf zlib ];