diff --git a/BMap/CMakeLists.txt b/BMap/CMakeLists.txt
new file mode 100644
index 0000000..7f4d8b6
--- /dev/null
+++ b/BMap/CMakeLists.txt
@@ -0,0 +1,65 @@
+cmake_minimum_required(VERSION 3.12)
+project(BMap LANGUAGES CXX)
+
+# add libcmo if not existed
+if (NOT TARGET LibCmo)
+	add_subdirectory("../LibCmo" "LibCmo.out")
+endif ()
+# add ironpad if not existed
+if (NOT TARGET IronPad)
+	add_subdirectory("../IronPad" "IronPad.out")
+endif ()
+
+# hide all function in default
+# fix imported library PIC issue (i don't know why. just make it works)
+set_target_properties(LibCmo
+PROPERTIES
+    CXX_VISIBILITY_PRESET hidden
+    POSITION_INDEPENDENT_CODE ON
+)
+set_target_properties(IronPad
+PROPERTIES
+    CXX_VISIBILITY_PRESET hidden
+    POSITION_INDEPENDENT_CODE ON
+)
+
+# setup sources
+set(bmap_headers ".")
+set(bmap_sources
+	BMap.cpp
+    BMExports.cpp
+)
+
+# generate shared library
+add_library(BMap
+SHARED
+    ${bmap_sources}
+)
+target_link_libraries(BMap
+PRIVATE
+	LibCmo
+	IronPad
+)
+target_include_directories(BMap
+PRIVATE
+	${bmap_headers}
+)
+
+# set project standard
+set_target_properties(BMap
+PROPERTIES
+	CXX_STANDARD 20
+	CXX_STANDARD_REQUIRED 20
+	CXX_EXTENSION OFF
+)
+# set default visibility to hidden
+set_target_properties(BMap
+PROPERTIES
+    CXX_VISIBILITY_PRESET hidden
+)
+# add export used macro flag
+target_compile_definitions(BMap
+PUBLIC
+	LIBCMO_EXPORTING
+)
+
diff --git a/IronPad/CMakeLists.txt b/IronPad/CMakeLists.txt
index 5452976..6bdf334 100644
--- a/IronPad/CMakeLists.txt
+++ b/IronPad/CMakeLists.txt
@@ -1,11 +1,10 @@
 cmake_minimum_required(VERSION 3.12)
 project(IronPad LANGUAGES CXX)
 
-# set standard
-set(CMAKE_CXX_STANDARD 20)
-
-# add libcmo
-add_subdirectory("../LibCmo" "LibCmo.out")
+# add libcmo if not existed
+if (NOT TARGET LibCmo)
+	add_subdirectory("../LibCmo" "LibCmo.out")
+endif ()
 
 # setup sources
 set(ironpad_headers ".")
@@ -24,3 +23,11 @@ target_include_directories(IronPad
 PUBLIC
 	${ironpad_headers}
 )
+
+# set project standard
+set_target_properties(IronPad
+PROPERTIES
+	CXX_STANDARD 20
+	CXX_STANDARD_REQUIRED 20
+	CXX_EXTENSION OFF
+)
diff --git a/IronPad/IronPad.cpp b/IronPad/IronPad.cpp
index bcadaa6..dd4aeff 100644
--- a/IronPad/IronPad.cpp
+++ b/IronPad/IronPad.cpp
@@ -1,9 +1,14 @@
 #include "IronPad.hpp"
+
+// only include these header on windows.
+// in other words, include these header when ironpad enabled.
+#if defined(IRONPAD_ENABLED)
 #include <Windows.h>
 #include <DbgHelp.h>
 #include <filesystem>
 #include <cstdarg>
 #include <cstdio>
+#endif
 
 namespace IronPad {
 
diff --git a/LibCmo/CMakeLists.txt b/LibCmo/CMakeLists.txt
index d0beebe..9fe30dc 100644
--- a/LibCmo/CMakeLists.txt
+++ b/LibCmo/CMakeLists.txt
@@ -13,9 +13,7 @@ if ((NOT EXISTS "${STB_IMAGE_PATH}/stb_image.h") OR (NOT EXISTS "${STB_IMAGE_PAT
 message(FATAL_ERROR "Invalid stb_image library path.")
 endif ()
 
-# set standard
-set(CMAKE_CXX_STANDARD 20)
-
+# set up file list
 set(libcmo_headers ".")
 
 set(libcmo_vt_src
@@ -84,7 +82,14 @@ PRIVATE
 	${Iconv_INCLUDE_DIRS}
 )
 
-# add essential build macro
+# set project standard
+set_target_properties(LibCmo
+PROPERTIES
+	CXX_STANDARD 20
+	CXX_STANDARD_REQUIRED 20
+	CXX_EXTENSION OFF
+)
+# add essential build macro and populate them
 target_compile_definitions(LibCmo
 PUBLIC
 	$<$<CONFIG:Debug>:LIBCMO_BUILD_DEBUG>
diff --git a/LibCmo/VTUtils.hpp b/LibCmo/VTUtils.hpp
index 1a34c02..6156bff 100644
--- a/LibCmo/VTUtils.hpp
+++ b/LibCmo/VTUtils.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
-#if !defined(LIBCMO_BUILD_DEBUG) && !defined(LIBCMO_BUILD_RELEASE)
-#error "You must define LIBCMO_BUILD_DEBUG or LIBCMO_BUILD_RELEASE to indicate build type!"
+#if !(defined(LIBCMO_BUILD_DEBUG) ^ defined(LIBCMO_BUILD_RELEASE))
+#error "You must define ONE of LIBCMO_BUILD_DEBUG and LIBCMO_BUILD_RELEASE to indicate build type!"
 #endif
 
 // https://stackoverflow.com/questions/2164827/explicitly-exporting-shared-library-functions-in-linux
diff --git a/Unvirt/CMakeLists.txt b/Unvirt/CMakeLists.txt
index c3ba74a..f015313 100644
--- a/Unvirt/CMakeLists.txt
+++ b/Unvirt/CMakeLists.txt
@@ -1,15 +1,17 @@
 cmake_minimum_required(VERSION 3.12)
 project(Unvirt LANGUAGES CXX)
 
-# set languages
-set(CMAKE_CXX_STANDARD 20)
-
-# add libcmo
-add_subdirectory("../LibCmo" "LibCmo.out")
-# add ironpad
-#add_subdirectory("../IronPad" "IronPad.out")
+# add libcmo if not existed
+if (NOT TARGET LibCmo)
+	add_subdirectory("../LibCmo" "LibCmo.out")
+endif ()
+# add ironpad if not existed
+if (NOT TARGET IronPad)
+	add_subdirectory("../IronPad" "IronPad.out")
+endif ()
 
 # setup sources
+set(unvirt_headers ".")
 set(unvirt_sources
 	AccessibleValue.cpp
 	CmdHelper.cpp
@@ -27,4 +29,17 @@ PRIVATE
 	LibCmo
 	IronPad
 )
+target_include_directories(Unvirt
+PRIVATE
+	${unvirt_headers}
+)
+
+# set project standard
+set_target_properties(Unvirt
+PROPERTIES
+	CXX_STANDARD 20
+	CXX_STANDARD_REQUIRED 20
+	CXX_EXTENSION OFF
+)
+