diff --git a/CMakeLists.txt b/CMakeLists.txt
index ae62e59..07adee6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,13 @@
 cmake_minimum_required(VERSION 2.8)
 project(mstch)
 option (WITH_UNIT_TESTS "enable building unit test executable" OFF)
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -O3")
+
+set(CMAKE_BUILD_TYPE Release)
+
+if(NOT MSVC)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -O3")
+endif()
+
 add_subdirectory(src)
 if(WITH_UNIT_TESTS)
   enable_testing()
diff --git a/include/mstch/mstch.hpp b/include/mstch/mstch.hpp
index 4c677f5..6847528 100644
--- a/include/mstch/mstch.hpp
+++ b/include/mstch/mstch.hpp
@@ -4,6 +4,7 @@
 #include <map>
 #include <string>
 #include <memory>
+#include <functional>
 
 #include <boost/variant.hpp>
 
@@ -20,7 +21,7 @@ class object_t {
   }
 
   bool has(const std::string name) const {
-    return methods.count(name);
+    return methods.count(name) != 0;
   }
 
  protected:
diff --git a/src/render_context.cpp b/src/render_context.cpp
index 18d7b99..89ab657 100644
--- a/src/render_context.cpp
+++ b/src/render_context.cpp
@@ -25,7 +25,7 @@ std::string render_context::push::render(const template_type& templt) {
 render_context::render_context(
     const mstch::node& node,
     const std::map<std::string, template_type>& partials):
-    partials{partials}, nodes{node}
+    partials(partials), nodes(1, node)
 {
   state.push(std::unique_ptr<render_state>(new outside_section));
 }
diff --git a/src/template_type.cpp b/src/template_type.cpp
index 355c4f6..b3da2c5 100644
--- a/src/template_type.cpp
+++ b/src/template_type.cpp
@@ -23,7 +23,7 @@ void template_type::tokenize(const std::string& tmp) {
   citer beg = tmp.begin();
   auto npos = std::string::npos;
 
-  for (unsigned long cur_pos = 0; cur_pos < tmp.size();) {
+  for (unsigned long long cur_pos = 0; cur_pos < tmp.size();) {
     auto open_pos = tmp.find(open, cur_pos);
     auto close_pos = tmp.find(
         close, open_pos == npos ? open_pos : open_pos + 1);
diff --git a/test/benchmark_main.cpp b/test/benchmark_main.cpp
index 82f7adb..d551a5b 100644
--- a/test/benchmark_main.cpp
+++ b/test/benchmark_main.cpp
@@ -3,9 +3,9 @@
 #include <chrono>
 #include <iostream>
 
-unsigned long current_msec() {
-  return std::chrono::system_clock::now().time_since_epoch() /
-      std::chrono::milliseconds(1);
+unsigned long long current_msec() {
+  return std::chrono::time_point_cast<std::chrono::milliseconds>(
+      std::chrono::system_clock::now()).time_since_epoch().count();
 }
 
 int main() {
@@ -25,7 +25,7 @@ int main() {
       }}
   };
 
-  std::vector<unsigned long> times;
+  std::vector<unsigned long long> times;
   for (int j = 0; j < 10; j++) {
     auto start = current_msec();
     for (int i = 0; i < 5000; i++)