meson.build: Enable /utf-8 for MSVC builds

fanc999-1 · kjellahl · commit 75119d0a346d · 2019-12-20T12:54:50.000+01:00
This avoids warnings and mis-compilations on certain system locales when
building on Visual Studio, in particular Chinese, Japanese and Korean
versions of Windows.
diff --git a/meson.build b/meson.build
@@ -151,7 +151,7 @@ add_project_arguments(warning_flags, language: 'cpp')
 # MSVC: Ignore warnings that aren't really harmful, but make those
 #       that should not be overlooked stand out.
 if is_msvc
-  foreach wd : ['/FImsvc_recommended_pragmas.h', '/wd4267', '/wd4530']
+  foreach wd : ['/FImsvc_recommended_pragmas.h', '/wd4267', '/wd4530', '/utf-8']
     disabled_warning = cpp_compiler.get_supported_arguments(wd)
     add_project_arguments(disabled_warning, language: 'cpp')
   endforeach
