Function prototype with newline compiler error?

[oqibidipo]

@6v6gt

but where did an int version of afunc() come from ?:

@mikebeachbum

x:117:1: error: ambiguating new declaration of 'int afunc()'

void loop();

afunc(void)
{
  return false;
}

This is one of the things that the -fpermissive option (which is on in the AVR core) enables: implicit function return type int.