https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114191
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |internal-improvement CC| |rguenth at gcc dot gnu.org --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- I think there's no way to mark Warning options as target specific, 'Target' isn't a flag, it's the main keyword. How did you specify 'Target'? I think that Wmisspelled-isr Target C C++ Var(avr_warn_misspelled_isr) Init(1) Warn if the ISR is misspelled, ... should eventually work?