[cleanup] Avoid unused variable warning
Since the use of _3
is guarded by macros flags,
the compiler issues a warning for some flag combinations.
Guarding the declaration of _3
by the same macros avoids
the warning.
Since the use of _3
is guarded by macros flags,
the compiler issues a warning for some flag combinations.
Guarding the declaration of _3
by the same macros avoids
the warning.