gcc/testsuite/gcc.dg/spellcheck-options-2.c

/* { dg-do compile } */
/* { dg-options "-Wthis-should-not-get-a-hint" } */
/* { dg-bogus "did you mean" "" { target *-*-* } 0 } */
/* { dg-error "unrecognized command-line option '-Wthis-should-not-get-a-hint'"  "" { target *-*-* } 0 } */