Merge pull request #27915 from WindyDarian/msvc_force_utf8_source_encoding

Force utf-8 source file encoding in MSVC

platform/windows/detect.py

@@ -195,7 +195,7 @@ def configure_msvc(env, manual_msvc_config):
 
     ## Compile/link flags
 
-    env.AppendUnique(CCFLAGS=['/MT', '/Gd', '/GR', '/nologo'])
+    env.AppendUnique(CCFLAGS=['/MT', '/Gd', '/GR', '/nologo', '/utf-8'])
     env.AppendUnique(CXXFLAGS=['/TP']) # assume all sources are C++
     if manual_msvc_config: # should be automatic if SCons found it
         if os.getenv("WindowsSdkDir") is not None: