Add Mainspring executable

CMakeLists.txt

@@ -1,5 +1,7 @@
-# Mainspring CMakeLists.txt
+# Mainspring project CMakeLists.txt
 
 cmake_minimum_required(VERSION 3.20)
 
 project(mainspring)
+
+add_subdirectory(Mainspring)

Mainspring/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Mainspring app CMakeLists.txt
+
+add_executable(Mainspring WIN32 "src/Mainspring.cpp")
+
+set_property(TARGET Mainspring PROPERTY CXX_STANDARD 20)
+
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /entry:mainCRTStartup")
+
+if(${CMAKE_BUILD_TYPE} STREQUAL "Debug")
+    set_property(TARGET Mainspring PROPERTY WIN32_EXECUTABLE FALSE)
+endif()

Mainspring/src/Mainspring.cpp

@@ -0,0 +1,10 @@
+// Mainspring main file
+
+#include <iostream>
+
+int main(int argc, char* argv[]) {
+    std::cout << "Mainspring\n";
+
+    std::cin.get();
+    return EXIT_SUCCESS;
+}