Add precompiled header

Mainspring/CMakeLists.txt

@@ -1,5 +1,5 @@
 # Mainspring app CMakeLists.txt
-add_executable(Mainspring WIN32 "src/Mainspring.cpp")
+add_executable(Mainspring WIN32 "src/Mainspring.cpp" "src/pch.h")
 
 set_property(TARGET Mainspring PROPERTY CXX_STANDARD 20)
 
@@ -9,6 +9,8 @@ if(${CMAKE_BUILD_TYPE} STREQUAL "Debug")
     set_property(TARGET Mainspring PROPERTY WIN32_EXECUTABLE FALSE)
 endif()
 
+target_precompile_headers(Mainspring PUBLIC "src/pch.h")
+
 find_package(Git)
 execute_process(COMMAND ${GIT_EXECUTABLE} describe OUTPUT_VARIABLE MAINSPRING_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
 configure_file(src/version.h.in version.h)

Mainspring/src/Mainspring.cpp

@@ -1,6 +1,5 @@
 // Mainspring main file
-#include <iostream>
-#include <format>
+#include "pch.h"
 
 #include "version.h"
 

Mainspring/src/pch.h

@@ -0,0 +1,14 @@
+// Mainspring precompiled header
+
+// IO and strings
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <format>
+
+// Time
+#include <chrono>
+
+// Windows
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>