CMakeLists: config utf-8 for msvc

Author: quink-black

CMakeLists.txt

@@ -5,6 +5,11 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
+# MSVC: Use UTF-8 source file encoding
+if(MSVC)
+    add_compile_options(/utf-8)
+endif()
+
 # Cross-platform output directories
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)