1  // { dg-do preprocess }
       2  // { dg-options "-std=gnu99 -Werror=normalized=nfc -fdiagnostics-show-caret -fdiagnostics-escape-format=unicode" }
       3  /* { dg-message "some warnings being treated as errors" "" {target "*-*-*"} 0 } */
       4  
       5  /* གྷ = U+0F43 TIBETAN LETTER GHA, which has decomposition "0F42 0FB7" i.e.
       6     U+0F42 TIBETAN LETTER GA: ག
       7     U+0FB7 TIBETAN SUBJOINED LETTER HA: ྷ  */
       8  
       9  foo before_\u0F43_after bar  // { dg-error "`before_.U00000f43_after' is not in NFC .-Werror=normalized=." }
      10  /* { dg-begin-multiline-output "" }
      11   foo before_\u0F43_after bar
      12       ^~~~~~~~~~~~~~~~~~~
      13     { dg-end-multiline-output "" } */
      14  
      15  foo before_གྷ_after bar // { dg-error "`before_.U00000f43_after' is not in NFC .-Werror=normalized=." }
      16  /* { dg-begin-multiline-output "" }
      17   foo before_<U+0F43>_after bar
      18       ^~~~~~~~~~~~~~~~~~~~~
      19     { dg-end-multiline-output "" } */