egcs-971031, sparc-sun-solaris2.5 new bootstrap failure

[Jeffrey A Law]

  In message < 9711081217.AA08778@moene.indiv.nluug.nl >you write:
  > >  Here is a patch to fix this.  This will be in the next
  > >  snapshot.
  > >
  > >  Thu Nov  6 18:27:36 1997  Jim Wilson  <wilson@cygnus.com>
  > >
  > >  	* flags.h (flag_rerun_loop_opt): Declare.
  > >       * loop.c (invariant_p, case LABEL_REF): Check
  > >  	flag_rerun_loop_opt.
  > >       * toplev.c (flag_rerum_loop_opt): Delete static.
  > 
  > Ah, that means that Jeff implemented rerun-loop-opt slightly  
  > differently from the way g77 had it; we *did* have an externally  
  > visible flag -frerun-loop-opt.
We always had a user visible -frerun-loop-opt option.

I believe Jim was referring to the variable itself -- it was static
in toplev.c, but needed to be external so that loop.c could peek at
it.

jeff