Mesa (master): meson: Add MSVC narrowing-int-to-char warnings

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Module: Mesa
Branch: master
Commit: 45f22528792d3ec072162aaff9b69a08bf1252e0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=45f22528792d3ec072162aaff9b69a08bf1252e0

Author: Daniel Stone <daniels at collabora.com>
Date:   Mon Apr  6 21:35:09 2020 +0100

meson: Add MSVC narrowing-int-to-char warnings

MSVC seems quite keen to warn us that we're narrowing an int into a
char, even if it fits entirely within range.

Signed-off-by: Daniel Stone <daniels at collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6227>

---

 meson.build | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meson.build b/meson.build
index 88dcc8151ea..f7ed6c73af6 100644
--- a/meson.build
+++ b/meson.build
@@ -984,6 +984,8 @@ if cc.get_id() == 'msvc'
                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
+               '/wd4309',  # 'initializing': truncation of constant value
+               '/wd4838',  # conversion from 'int' to 'const char' requires a narrowing conversion
               ]
     if cc.has_argument(a)
       c_args += a