// { dg-do preprocess } | |
// { dg-options "-std=gnu99 -fdiagnostics-show-option -Werror=trigraphs" } | |
/* { dg-message "some warnings being treated as errors" "" {target "*-*-*"} 0 } */ | |
??= // { dg-error "trigraph \\?\\?= ignored, use -trigraphs to enable .-Werror=trigraphs." } |