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AP_Mount: Conditionally define `serial_instance` to fix unused variable compile error 

- Wrapped the definition of `serial_instance` with preprocessor directives to ensure it is only defined when necessary.
- This resolves the compile error caused by the unused variable when no features requiring `serial_instance` are enabled.
This commit is contained in:
mduclehcm 2024-07-22 11:48:07 +07:00 committed by Peter Barker
parent 4904c718a5
commit 25a406e633
1 changed files with 3 additions and 1 deletions
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4
libraries/AP_Mount/AP_Mount.cpp
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@ -46,7 +46,7 @@ AP_Mount::AP_Mount()
} }
_singleton = this; _singleton = this;
AP_Param::setup_object_defaults(this, var_info); AP_Param::setup_object_defaults(this, var_info);
} }
// init - detect and initialise all mounts // init - detect and initialise all mounts
@ -184,6 +184,8 @@ void AP_Mount::init()
set_mode_to_default(instance); set_mode_to_default(instance);
} }
} }
(void)serial_instance;
} }
// update - give mount opportunity to update servos. should be called at 10hz or higher // update - give mount opportunity to update servos. should be called at 10hz or higher