- fix build options for Windows

src/engine/helper/CMakeLists.txt

@@ -1,3 +1,4 @@
+cmake_minimum_required (VERSION 3.15)
 project (helper_lib)
 
 # Rely on C++ 11
@@ -11,6 +12,7 @@ set (CMAKE_POSITION_INDEPENDENT_CODE ON)
 file (GLOB HELPER_LIB_SOURCES "*.cpp" "*.h")
 
 add_library(helper_lib ${HELPER_LIB_SOURCES})
+set_property(TARGET helper_lib PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
 
 # Private include directories
 target_include_directories(helper_lib PRIVATE ../../libs/ ../../engine ../)