Build: Set missing override as error

I couldn't find a similar flag for MSVC

include/Nazara/Audio/Music.hpp

@@ -38,7 +38,7 @@ namespace Nz
 
 			Time GetDuration() const override;
 			AudioFormat GetFormat() const;
-			Time GetPlayingOffset() const;
+			Time GetPlayingOffset() const override;
 			UInt64 GetSampleCount() const;
 			UInt64 GetSampleOffset() const override;
 			UInt32 GetSampleRate() const override;
@@ -53,7 +53,7 @@ namespace Nz
 			void Pause() override;
 			void Play() override;
 
-			void SeekToSampleOffset(UInt64 offset);
+			void SeekToSampleOffset(UInt64 offset) override;
 
 			void Stop() override;
 

plugins/Assimp/Plugin.cpp

@@ -918,7 +918,7 @@ namespace
 				meshLoader.UnregisterLoader(m_meshLoaderEntry);
 			}
 
-			std::string_view GetDescription() const
+			std::string_view GetDescription() const override
 			{
 				return "Adds supports to load meshes and animations using Assimp";
 			}
@@ -963,4 +963,4 @@ extern "C"
 		return plugin.release();
 	}
 }
-#endif
+#endif

xmake.lua

@@ -378,7 +378,9 @@ if is_plat("windows") then
 else
 	-- GCC-compatible (GCC, Clang, ...)
 	add_cxflags("-Wtrampolines")
+	add_cxflags("-Werror=inconsistent-missing-override", {tools = "clang"})
 	add_cxflags("-Werror=reorder")
+	add_cxflags("-Werror=suggest-override", {tools = "gcc"})
 	add_cxflags("-Werror=switch")
 end