Very Computer

1. Plz help- "undefined reference" error in short sample c++ program

When I compile the following program (taken directly from the C++ FAQ
book), I get undefined reference errors for an element in the
program's defined class.
I'd read that uninstalling/reinstalling c++ libs fixes the problem.
However, I've done this (and have the latest version of gcc and libs),
to no effect.  Currently using RedHat 7.1.

Can anyone help?

Thanks,
Joe

cc recycle.cpp
/tmp/cco69TPH.o: In function `Fred::create(void)':
/tmp/cco69TPH.o(.text+0x69): undefined reference to
`Fred::headRecycled_'
/tmp/cco69TPH.o(.text+0xb9): undefined reference to
`Fred::headRecycled_'
/tmp/cco69TPH.o(.text+0xc1): undefined reference to
`Fred::headRecycled_'
/tmp/cco69TPH.o(.text+0xc8): undefined reference to
`Fred::headRecycled_'
/tmp/cco69TPH.o: In function `Fred::discard(void)':
/tmp/cco69TPH.o(.text+0x14e): undefined reference to
`Fred::headRecycled_'
/tmp/cco69TPH.o(.text+0x156): more undefined references to
`Fred::headRecycled_' follow
collect2: ld returned 1 exit status

==========================================
#include <new>
using namespace std;

class Fred {
public:
  static Fred* create() throw(bad_alloc);
  virtual void discard() throw();
  static bool flushPool() throw();
private:
  Fred() throw();
  ~Fred() throw();
  static Fred* headRecycled_;
  void init() throw();
  Fred* nextRecycled_;

void Fred::init() throw()
{
  //
  nextRecycled_ = NULL;

Fred::Fred() throw()
{ init(); }

Fred::~Fred() throw()
{ }

Fred* Fred::create() throw(bad_alloc)
{
  if (Fred::headRecycled_ == NULL)
    return new Fred();
  Fred* p = Fred::headRecycled_;
  Fred::headRecycled_ = Fred::headRecycled_->nextRecycled_;
  p->init();
  return p;

void Fred::discard() throw()
{
  nextRecycled_ = headRecycled_;
  headRecycled_  = this;

bool Fred::flushPool() throw()
{
  bool stuffGotDeleted = (headRecycled_ != NULL);
  while (headRecycled_ != NULL)
    delete create();
  return stuffGotDeleted;

void flushAllPools() throw(bad_alloc)
{
  unsigned n = 0;
  n += Fred::flushPool();

  if (n == 0)
    throw bad_alloc();

int main()
{
  set_new_handler(flushAllPools);
========================================

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