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Subject: [Bug bootstrap/46055] [4.6 Regression] -fwhopr failed configure test
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46055

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-17 21:32:51 UTC ---
I am not sure test:

---
char pstat_getstatic ();
char (*f) () = pstat_getstatic;
int
main ()
{
  return f != pstat_getstatic;
}
---

which detects if pstat_getstatic is defined,
is compatible with whopr, which may decide
f is never changed and optimize it to

int
main ()
{
  return 0;
}

We need a better way to detect if a function is
available when whopr is enabled.