diff --git a/CMakeLists.txt b/CMakeLists.txt
index 30e4eb7..5d5b689 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,4 @@
 cmake_minimum_required(VERSION 2.8)
-add_definitions("-std=c++1y")
 
 # Check if a supported compiler is used and add c++14 flag:
 if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
@@ -7,7 +6,7 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     message(FATAL_ERROR "Need at least gcc 4.9 to compile.")
   endif()
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
-elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+elseif(MSVC)
   if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19)
     message(FATAL_ERROR "Visual Studio 2015 or newer is required.")
   endif()
@@ -53,14 +52,25 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang"
     )
 elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
   set(warning_options -Wall -Wpedantic -Wextra)
-elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
-  set(warning_options /WX /W4 /wd4503 /wd4512)
+elseif(MSVC)
+  set(warning_options /W4 /wd4503 /wd4512)
+endif()
+
+if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  set(add_link_deps pthread)
+endif()
+
+if(MSVC)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8")
 endif()
 
 enable_testing()
 
-add_subdirectory(lint)
 add_subdirectory(test)
 add_subdirectory(example)
+
+if(NOT MSVC)
+add_subdirectory(lint)
 add_subdirectory(language/pl0)
 add_subdirectory(language/culebra)
+endif()
\ No newline at end of file
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..b63b49e
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,16 @@
+clone_depth: 5
+
+environment:
+  matrix:
+    - CMAKE_GENERATOR: "Visual Studio 14 2015"
+      CONFIGURATION: Release
+    - CMAKE_GENERATOR: "Visual Studio 14 2015 Win64"
+      CONFIGURATION: Release
+
+build_script:
+  - mkdir build && cd build
+  - cmake .. -Wno-dev -G"%CMAKE_GENERATOR%"
+  - cmake --build . --config %CONFIGURATION%
+
+test_script:
+  - ctest -C %CONFIGURATION% -V
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index 46b3621..84aff73 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -1,12 +1,17 @@
 cmake_minimum_required(VERSION 2.8)
 include_directories(..)
-add_compile_options(${cxx11_options} ${warning_options})
+
+if(MSVC)
+  add_compile_options(${cxx11_options} /W3)
+else()
+  add_compile_options(${cxx11_options})
+endif()
 
 add_executable(calc calc.cc)
-target_link_libraries(calc pthread)
+target_link_libraries(calc ${add_link_deps})
 
 add_executable(calc2 calc2.cc)
-target_link_libraries(calc2 pthread)
+target_link_libraries(calc2 ${add_link_deps})
 
 add_executable(calc3 calc3.cc)
-target_link_libraries(calc3 pthread)
+target_link_libraries(calc3 ${add_link_deps})
diff --git a/language/culebra/CMakeLists.txt b/language/culebra/CMakeLists.txt
index 2a19fbf..fc25488 100644
--- a/language/culebra/CMakeLists.txt
+++ b/language/culebra/CMakeLists.txt
@@ -1,4 +1,11 @@
 cmake_minimum_required(VERSION 2.8)
 include_directories(../..)
 
+if(MSVC)
+  add_compile_options(${cxx11_options} /W3)
+  add_definitions(-DUNICODE)
+else()
+  add_compile_options(${cxx11_options})
+endif()
+
 add_executable(culebra main.cc)
diff --git a/language/pl0/CMakeLists.txt b/language/pl0/CMakeLists.txt
index 0465843..91597ea 100644
--- a/language/pl0/CMakeLists.txt
+++ b/language/pl0/CMakeLists.txt
@@ -1,4 +1,10 @@
 cmake_minimum_required(VERSION 2.8)
 include_directories(../..)
 
+if(MSVC)
+  add_compile_options(${cxx11_options} /W0)
+else()
+  add_compile_options(${cxx11_options})
+endif()
+
 add_executable(pl0 pl0.cc)
diff --git a/lint/CMakeLists.txt b/lint/CMakeLists.txt
index d4e20ca..02bdca9 100644
--- a/lint/CMakeLists.txt
+++ b/lint/CMakeLists.txt
@@ -1,4 +1,10 @@
 cmake_minimum_required(VERSION 2.8)
 include_directories(..)
 
+if(MSVC)
+  add_compile_options(${cxx11_options} /W3)
+else()
+  add_compile_options(${cxx11_options})
+endif()
+
 add_executable(peglint peglint.cc server.cc)
diff --git a/peglib.h b/peglib.h
index 056323f..17c1d99 100644
--- a/peglib.h
+++ b/peglib.h
@@ -5,8 +5,8 @@
 //  MIT License
 //
 
-#ifndef _CPPPEGLIB_PEGLIB_H_
-#define _CPPPEGLIB_PEGLIB_H_
+#ifndef CPPPEGLIB_PEGLIB_H
+#define CPPPEGLIB_PEGLIB_H
 
 #include <algorithm>
 #include <cassert>
@@ -1104,6 +1104,8 @@ struct Ope::Visitor
 
 struct AssignIDToDefinition : public Ope::Visitor
 {
+    using Ope::Visitor::visit;
+
     void visit(Sequence& ope) override {
         for (auto op: ope.opes_) {
             op->accept(*this);
@@ -1133,6 +1135,8 @@ struct IsToken : public Ope::Visitor
 {
     IsToken() : has_token_boundary(false), has_rule(false) {}
 
+    using Ope::Visitor::visit;
+
     void visit(Sequence& ope) override {
         for (auto op: ope.opes_) {
             op->accept(*this);
@@ -1352,7 +1356,7 @@ private:
 inline size_t LiteralString::parse(const char* s, size_t n, SemanticValues& sv, Context& c, any& dt) const {
     c.trace("LiteralString", s, n, sv, dt);
 
-    auto i = 0u;
+    size_t i = 0;
     for (; i < lit_.size(); i++) {
         if (i >= n || s[i] != lit_[i]) {
             c.set_error_pos(s);
@@ -1661,6 +1665,8 @@ private:
         DetectLeftRecursion(const std::string& name)
             : s_(nullptr), name_(name), done_(false) {}
 
+        using Ope::Visitor::visit;
+
         void visit(Sequence& ope) override {
             for (auto op: ope.opes_) {
                 op->accept(*this);
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 9d57012..3911957 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -3,6 +3,6 @@ include_directories(..)
 add_compile_options(${cxx11_options} ${warning_options})
 
 add_executable(test-main test.cc)
-target_link_libraries(test-main pthread)
+target_link_libraries(test-main ${add_link_deps})
 
 add_test(TestMain test-main)