1  /* Regression test for bug with macro expansion on #if lines -
       2     exposed by glibc.  */
       3  /* { dg-do compile } */
       4  
       5  # define SHLIB_COMPAT(lib, introduced, obsoleted) \
       6    (!(ABI_##lib##_##obsoleted - 0) \
       7     || ((ABI_##lib##_##introduced - 0) < (ABI_##lib##_##obsoleted - 0)))
       8  
       9  #if 0
      10  bad
      11  #elif SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
      12  int
      13  #endif
      14  x;