1  /* PR preprocessor/100646 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-fdirectives-only -save-temps -std=c17" } */
       4  int main () { return 0; }
       5  /* { dg-warning "backslash-newline at end of file" "" { target *-*-* } .+1 } */
       6  // Not newline terminated\