ports//lang/gnat-gcc42/work/gcc-4.2.2/gcc/testsuite/gcc.dg/pch/valid-4.c

/* { dg-options "-I. -Winvalid-pch -Wtrigraphs" } */

#include "valid-4.h"

char * x = "??/";  /* { dg-error "trigraph" } */

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