[PATCH v5 18/20] build: enable vla warnings on Windows built code

[Andre Muezerie <andremue@linux.microsoft.com>]

From: Tyler Retzlaff <roretzla@linux.microsoft.com>

MSVC does not support optional C11 VLAs. When building for Windows
enable -Wvla so that mingw and clang also fail if a VLA is used.

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
 config/meson.build | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/config/meson.build b/config/meson.build
index 5095d2fbcb..9a3ce5eaa9 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -339,6 +339,10 @@ if cc.get_id() == 'intel'
         warning_flags += '-diag-disable=@0@'.format(i)
     endforeach
 endif
+# no VLAs in code built on Windows
+if is_windows
+    warning_flags += '-Wvla'
+endif
 foreach arg: warning_flags
     if cc.has_argument(arg)
         add_project_arguments(arg, language: 'c')
-- 
2.34.1