diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7a2f744..926b8f7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -59,11 +59,17 @@ macro(GROUP_SOURCES_BY_DIR source_files)
     endforeach()
 endmacro()
 
-# CMake 3.1.0+
+# C++ standard requirements.
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# CMake 3.1.0+ required.
+# See: https://stackoverflow.com/a/29871891
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
 
-# Boost version: 1.66+
+# Boost 1.66+ required.
 set(Boost_USE_STATIC_LIBS ON)
 set(Boost_USE_MULTITHREADED ON)
 if(WIN32)
diff --git a/compile_commands.json b/compile_commands.json
index 26e2d43..1e37a9e 100644
--- a/compile_commands.json
+++ b/compile_commands.json
@@ -1,157 +1,162 @@
 [
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-  "file": "/home/adam/github/webcc/src/gtest/gtest-all.cc"
-},
-{
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-  "file": "/home/adam/github/webcc/src/gtest/gtest_main.cc"
-},
-{
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-  "file": "/home/adam/github/webcc/src/pugixml/pugixml.cpp"
+  "directory": "/home/adam/github/webcc/build/third_party/pugixml",
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+  "file": "/home/adam/github/webcc/third_party/pugixml/pugixml.cpp"
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+  "command": "/usr/bin/c++   -DBOOST_ASIO_NO_DEPRECATED -DWEBCC_DEBUG_OUTPUT -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party    -std=c++11 -o CMakeFiles/webcc.dir/common.cc.o -c /home/adam/github/webcc/src/webcc/common.cc",
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+},
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+},
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-  "file": "/home/adam/github/webcc/src/demo/soap/calc_client/calc_client.cc"
+  "directory": "/home/adam/github/webcc/build/example/rest_book_client",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -o CMakeFiles/rest_book_client.dir/main.cc.o -c /home/adam/github/webcc/example/rest_book_client/main.cc",
+  "file": "/home/adam/github/webcc/example/rest_book_client/main.cc"
 },
 {
-  "directory": "/home/adam/github/webcc/build/src/demo/soap/calc_client",
-  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src    -std=c++11 -std=c++11 -o CMakeFiles/soap_calc_client.dir/main.cc.o -c /home/adam/github/webcc/src/demo/soap/calc_client/main.cc",
-  "file": "/home/adam/github/webcc/src/demo/soap/calc_client/main.cc"
+  "directory": "/home/adam/github/webcc/build/example/soap_calc_server",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -o CMakeFiles/soap_calc_server.dir/calc_service.cc.o -c /home/adam/github/webcc/example/soap_calc_server/calc_service.cc",
+  "file": "/home/adam/github/webcc/example/soap_calc_server/calc_service.cc"
 },
 {
-  "directory": "/home/adam/github/webcc/build/src/demo/soap/calc_server",
-  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src    -std=c++11 -std=c++11 -o CMakeFiles/soap_calc_server.dir/calc_service.cc.o -c /home/adam/github/webcc/src/demo/soap/calc_server/calc_service.cc",
-  "file": "/home/adam/github/webcc/src/demo/soap/calc_server/calc_service.cc"
+  "directory": "/home/adam/github/webcc/build/example/soap_calc_server",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -o CMakeFiles/soap_calc_server.dir/main.cc.o -c /home/adam/github/webcc/example/soap_calc_server/main.cc",
+  "file": "/home/adam/github/webcc/example/soap_calc_server/main.cc"
 },
 {
-  "directory": "/home/adam/github/webcc/build/src/demo/soap/calc_server",
-  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src    -std=c++11 -std=c++11 -o CMakeFiles/soap_calc_server.dir/main.cc.o -c /home/adam/github/webcc/src/demo/soap/calc_server/main.cc",
-  "file": "/home/adam/github/webcc/src/demo/soap/calc_server/main.cc"
+  "directory": "/home/adam/github/webcc/build/example/soap_calc_client",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -o CMakeFiles/soap_calc_client.dir/calc_client.cc.o -c /home/adam/github/webcc/example/soap_calc_client/calc_client.cc",
+  "file": "/home/adam/github/webcc/example/soap_calc_client/calc_client.cc"
 },
 {
-  "directory": "/home/adam/github/webcc/build/src/demo/rest/book_client",
-  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src    -std=c++11 -std=c++11 -o CMakeFiles/rest_book_client.dir/book_client.cc.o -c /home/adam/github/webcc/src/demo/rest/book_client/book_client.cc",
-  "file": "/home/adam/github/webcc/src/demo/rest/book_client/book_client.cc"
+  "directory": "/home/adam/github/webcc/build/example/soap_calc_client",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -o CMakeFiles/soap_calc_client.dir/main.cc.o -c /home/adam/github/webcc/example/soap_calc_client/main.cc",
+  "file": "/home/adam/github/webcc/example/soap_calc_client/main.cc"
 },
 {
-  "directory": "/home/adam/github/webcc/build/src/demo/rest/book_client",
-  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src    -std=c++11 -std=c++11 -o CMakeFiles/rest_book_client.dir/main.cc.o -c /home/adam/github/webcc/src/demo/rest/book_client/main.cc",
-  "file": "/home/adam/github/webcc/src/demo/rest/book_client/main.cc"
+  "directory": "/home/adam/github/webcc/build/third_party/gtest",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -std=c++11 -o CMakeFiles/gtest.dir/gtest-all.cc.o -c /home/adam/github/webcc/third_party/gtest/gtest-all.cc",
+  "file": "/home/adam/github/webcc/third_party/gtest/gtest-all.cc"
 },
 {
-  "directory": "/home/adam/github/webcc/build/src/demo/rest/book_server",
-  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src    -std=c++11 -std=c++11 -o CMakeFiles/rest_book_server.dir/book_services.cc.o -c /home/adam/github/webcc/src/demo/rest/book_server/book_services.cc",
-  "file": "/home/adam/github/webcc/src/demo/rest/book_server/book_services.cc"
+  "directory": "/home/adam/github/webcc/build/third_party/gtest",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -std=c++11 -o CMakeFiles/gtest.dir/gtest_main.cc.o -c /home/adam/github/webcc/third_party/gtest/gtest_main.cc",
+  "file": "/home/adam/github/webcc/third_party/gtest/gtest_main.cc"
 },
 {
-  "directory": "/home/adam/github/webcc/build/src/demo/rest/book_server",
-  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src    -std=c++11 -std=c++11 -o CMakeFiles/rest_book_server.dir/main.cc.o -c /home/adam/github/webcc/src/demo/rest/book_server/main.cc",
-  "file": "/home/adam/github/webcc/src/demo/rest/book_server/main.cc"
+  "directory": "/home/adam/github/webcc/build/unittest",
+  "command": "/usr/bin/c++   -DWEBCC_ENABLE_SOAP -I/home/adam/include -I/home/adam/github/webcc/src -I/home/adam/github/webcc/third_party -I/home/adam/github/webcc/third_party/jsoncpp    -std=c++11 -o CMakeFiles/webcc_unittest.dir/rest_service_manager_test.cc.o -c /home/adam/github/webcc/unittest/rest_service_manager_test.cc",
+  "file": "/home/adam/github/webcc/unittest/rest_service_manager_test.cc"
 }
 ]
\ No newline at end of file
diff --git a/example/rest_book_client/CMakeLists.txt b/example/rest_book_client/CMakeLists.txt
index d381c00..bd04eb9 100644
--- a/example/rest_book_client/CMakeLists.txt
+++ b/example/rest_book_client/CMakeLists.txt
@@ -1,10 +1,4 @@
-if(UNIX)
-    add_definitions(-std=c++11)
-endif()
-
-file(GLOB SRCS *.cc *.h)
-
-add_executable(rest_book_client ${SRCS})
+add_executable(rest_book_client main.cc)
 
 target_link_libraries(rest_book_client webcc ${Boost_LIBRARIES})
 target_link_libraries(rest_book_client "${CMAKE_THREAD_LIBS_INIT}")
diff --git a/example/rest_book_server/CMakeLists.txt b/example/rest_book_server/CMakeLists.txt
index e6e729c..54d1dda 100644
--- a/example/rest_book_server/CMakeLists.txt
+++ b/example/rest_book_server/CMakeLists.txt
@@ -1,7 +1,3 @@
-if(UNIX)
-    add_definitions(-std=c++11)
-endif()
-
 file(GLOB SRCS *.cc *.h)
 
 add_executable(rest_book_server ${SRCS})
diff --git a/example/soap_calc_client/CMakeLists.txt b/example/soap_calc_client/CMakeLists.txt
index 06f37ef..43cf6db 100644
--- a/example/soap_calc_client/CMakeLists.txt
+++ b/example/soap_calc_client/CMakeLists.txt
@@ -1,6 +1,6 @@
-if(UNIX)
-    add_definitions(-std=c++11)
-endif()
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
 
 file(GLOB SRCS *.cc *.h)
 
diff --git a/example/soap_calc_server/CMakeLists.txt b/example/soap_calc_server/CMakeLists.txt
index 7e4f2ab..1e2f762 100644
--- a/example/soap_calc_server/CMakeLists.txt
+++ b/example/soap_calc_server/CMakeLists.txt
@@ -1,6 +1,6 @@
-if(UNIX)
-    add_definitions(-std=c++11)
-endif()
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
 
 file(GLOB SRCS *.cc *.h)
 
diff --git a/src/webcc/CMakeLists.txt b/src/webcc/CMakeLists.txt
index 6f0c2d6..5cde4bd 100644
--- a/src/webcc/CMakeLists.txt
+++ b/src/webcc/CMakeLists.txt
@@ -1,7 +1,3 @@
-if(UNIX)
-    add_definitions(-std=c++11)
-endif()
-
 option(WEBCC_DEBUG_OUTPUT "Enable debug output?" OFF)
 
 if(WEBCC_DEBUG_OUTPUT)
diff --git a/src/webcc/http_client.cc b/src/webcc/http_client.cc
index 9409401..e6d53c4 100644
--- a/src/webcc/http_client.cc
+++ b/src/webcc/http_client.cc
@@ -29,13 +29,15 @@ static void SetTimeout(boost::asio::ip::tcp::socket& socket,
   int ms = timeout_seconds * 1000;
 
   const char* optval = reinterpret_cast<const char*>(&ms);
-  size_t optlen = sizeof(ms);
+  std::size_t optlen = sizeof(ms);
 
   setsockopt(socket.native_handle(), SOL_SOCKET, SO_RCVTIMEO, optval, optlen);
   setsockopt(socket.native_handle(), SOL_SOCKET, SO_SNDTIMEO, optval, optlen);
 
 #else  // POSIX
 
+  // TODO: This doesn't work! Consider to control timeout in server side.
+
   struct timeval tv;
   tv.tv_sec = timeout_seconds;
   tv.tv_usec = 0;
@@ -104,7 +106,9 @@ Error HttpClient::SendRequest(const HttpRequest& request,
   // We must stop trying to read once all content has been received,
   // because some servers will block extra call to read_some().
   while (!parser.finished()) {
-    size_t length = socket.read_some(boost::asio::buffer(buffer_), ec);
+    // read_some() will block until one or more bytes of data has been
+    // read successfully, or until an error occurs.
+    std::size_t length = socket.read_some(boost::asio::buffer(buffer_), ec);
 
     if (length == 0 || ec) {
 #if defined _WINDOWS
diff --git a/third_party/jsoncpp/CMakeLists.txt b/third_party/jsoncpp/CMakeLists.txt
index c85c1ee..51a3330 100644
--- a/third_party/jsoncpp/CMakeLists.txt
+++ b/third_party/jsoncpp/CMakeLists.txt
@@ -1,4 +1,6 @@
-# project(jsoncpp)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
 
 set(SRCS
 	json/json.h
diff --git a/unittest/CMakeLists.txt b/unittest/CMakeLists.txt
index 22767df..49f74a2 100644
--- a/unittest/CMakeLists.txt
+++ b/unittest/CMakeLists.txt
@@ -1,13 +1,14 @@
 # Unit test
-if(CSOAP_ENABLE_UT)
+if(WEBCC_BUILD_UNITTEST)
     set(UT_SRCS
         rest_service_manager_test.cc
         )
 
-    set(UT_TARGET_NAME csoap_unittest)
+    set(UT_TARGET_NAME webcc_unittest)
 
     add_executable(${UT_TARGET_NAME} ${UT_SRCS})
-    target_link_libraries(${UT_TARGET_NAME} csoap pugixml gtest)
+    target_link_libraries(${UT_TARGET_NAME} webcc pugixml gtest ${Boost_LIBRARIES})
+    target_link_libraries(${UT_TARGET_NAME} "${CMAKE_THREAD_LIBS_INIT}")
 
     add_test(${UT_TARGET_NAME} ${UT_TARGET_NAME})
 endif()
diff --git a/unittest/rest_service_manager_test.cc b/unittest/rest_service_manager_test.cc
index cd1c8c5..6b08d95 100644
--- a/unittest/rest_service_manager_test.cc
+++ b/unittest/rest_service_manager_test.cc
@@ -1,18 +1,16 @@
-#include "csoap/rest_server.h"
+#include "webcc/rest_server.h"
 #include "gtest/gtest.h"
 
-using namespace csoap;
+using namespace webcc;
 
 ////////////////////////////////////////////////////////////////////////////////
 
 class TestRestService : public RestService {
 public:
-  ~TestRestService() override {
-  }
-
   bool Handle(const std::string& http_method,
-              const std::string& request,
-              std::string* response) override {
+              const std::vector<std::string>& url_sub_matches,
+              const std::string& request_content,
+              std::string* response_content) override {
     return true;
   }
 };