[pango/msvc.improvements: 7/8] Visual Studio: Use -utf-8 when available

[Chun-wei Fan <fanchunwei src gnome org>]

commit e7160cc7e2e9a9867c5bcf7935d4e902c11a76a9
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed Jan 15 14:44:37 2020 +0800

    Visual Studio: Use -utf-8 when available
    
    This avoids the build erroring out on C4819 (Unicode handling issue in Visual
    Studio compilers), notably when running on Chinese, Japanese and Korean
    locales.

 meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index d5321e60..f0aa84e3 100644
--- a/meson.build
+++ b/meson.build
@@ -57,8 +57,8 @@ common_ldflags = []
 if cc.get_id() == 'msvc'
   # Compiler options taken from msvc_recommended_pragmas.h
   # in GLib, based on _Win32_Programming_ by Rector and Newcomer
-  test_cflags = []
-  add_project_arguments([ '-FImsvc_recommended_pragmas.h' ], language: 'c')
+  test_cflags = ['-FImsvc_recommended_pragmas', '-utf-8']
+  add_project_arguments(cc.get_supported_arguments(test_cflags), language: 'c')
   test_c_only_flags = []
 elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
   test_c_only_flags = [