small patch for sparc-linux-gnulibc1

[Jeffrey A Law]

  In message < 199710172212.SAA04011@jenolan.rutgers.edu >you write:
  > 
  > I can't get a clean build without the following change.
  > 
  > I'm not certain this is the correct fix though.  gbl-ctors.h has this
  > bit in it:
  > 
  > #if defined (WINNT) || defined (NEED_ATEXIT)
  > extern int atexit (void (*) (void));
  > #else
  > extern void atexit (void (*) (void));
  > #endif
  > 
  > It seems to me if NEED_ATEXIT is not defined, this means a prototype
  > extern is not necessary.  Perhaps someone can help figure out what
  > really should be happening here.
  > 
  > Fri Oct 17 17:09:05 1997  David S. Miller  <davem@tanya.rutgers.edu>
  > 
  > 	* config/sparc/linux.h (NEED_ATEXIT): Define.
Hmmm.  At first I was going to say use autoconf for this, but it
seems to me that this is really a target issue, so autoconf doesn't
help.

Similarly for my comment about the gbl-ctors.h change in my last message.

So I'm not sure what to do.

Jeff