[Bug target/59396] [avr] Wrong warning with ISR() and -flto

[code at dawg dot eu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59396

Martin Nowak <code at dawg dot eu> changed:

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                 CC|                            |code at dawg dot eu

--- Comment #3 from Martin Nowak <code at dawg dot eu> ---
Is there a simple workaround until this is fixed?