meson: Deprecate bitwise operations between different enumeration type

C++20 deprecates bitwise operations between different enumeration types. This is a bad practice even in C++17, so enable the deprecation warning. Doing so ensures no such operations will be added. Signed-off-by: Laurent Pinchart <[email protected]> Reviewed-by: Umang Jain <[email protected]> Reviewed-by: Stefan Klug <[email protected]>
ArduCAM · May 3, 2024 · bf46952 · bf46952
1 parent 4885f2d
commit bf46952
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/meson.build b/meson.build
@@ -178,6 +178,15 @@ if cc.has_argument('-Wno-c99-designator')
     ]
 endif
 
+# Enable the C++20 deprecated enum-enum conversion warning if the compiler
+# supports it. This helps avoiding C++20 regressions, and should be removed
+# when switching to C++20 as the warning will then be enabled by default.
+if cxx.has_argument('-Wdeprecated-enum-enum-conversion')
+    cpp_arguments += [
+        '-Wdeprecated-enum-enum-conversion',
+    ]
+endif
+
 c_arguments += common_arguments
 cpp_arguments += common_arguments