meson: update C++ standard to C++23

C++ is evolving faster than C, so it's useful to enable new standards,
especially for standard library.
Update to most recent standard available in our build environments.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/qemu-devel/20260124182921.531562-11-pierrick.bouvier@linaro.org
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>

diff --git a/meson.build b/meson.build
index 149655058a9353656921cddc8a9be9b75ffa3d3f..8c6c0a9a32fe8691762a2f924cd3a3b92f268f75 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('qemu', ['c'], meson_version: '>=1.5.0',
-        default_options: ['warning_level=1', 'c_std=gnu11', 'cpp_std=gnu++11', 'b_colorout=auto',
+        default_options: ['warning_level=1', 'c_std=gnu11', 'cpp_std=gnu++23', 'b_colorout=auto',
                           'b_staticpic=false', 'stdsplit=false', 'optimization=2', 'b_pie=true',
                           'rust_std=2021', 'build.rust_std=2021'],
         version: files('VERSION'))