try different annotated fallthrough

app/CMakeLists.txt

@@ -65,7 +65,7 @@ target_compile_definitions(${OLIVE_TARGET} PRIVATE ${OLIVE_DEFINITIONS})
 if(MSVC)
   target_compile_options(${OLIVE_TARGET} PRIVATE /W4 /WX)
 else()
-  target_compile_options(${OLIVE_TARGET} PRIVATE -Werror -Wuninitialized -pedantic-errors -Wall -Wextra -Wconversion -Wsign-conversion>)
+  target_compile_options(${OLIVE_TARGET} PRIVATE -Werror -Wuninitialized -pedantic-errors -Wall -Wextra -Wconversion -Wsign-conversion)
 endif()
 
 target_include_directories(

app/project/item/footage/footage.cpp

@@ -161,7 +161,7 @@ void Footage::UpdateIcon()
       break;
 
     }
-  [[clang::fallthrough]];
+    /* fall through */
   case kInvalid:
     set_icon(olive::icon::Error);
     break;