1  /* { dg-do link } */
       2  /* { dg-options "-std=c99 -ffinite-math-only -O" } */
       3  
       4  #include "builtins-config.h"
       5  
       6  extern void link_error (void);
       7  
       8  extern double floor (double);
       9  extern double trunc (double);
      10  extern double fabs (double);
      11  
      12  void test (double x)
      13  {
      14  #ifdef HAVE_C99_RUNTIME
      15    if (floor (fabs (x)) != trunc (fabs (x)))
      16      link_error ();
      17  #endif
      18    if (__builtin_lfloor (fabs (x)) != (long)fabs (x))
      19      link_error ();
      20  }
      21  
      22  int main (void)
      23  {
      24    return 0;
      25  }