Another patch for "might be clobbered" warnings (c-lex.c)

[Jeffrey A Law]

  In message < 199903161951.OAA05630@caip.rutgers.edu >you write:
  > 	This patch fixes the "might be clobbered" warnings in c-lex.c.
  > 
  > Thankfully, this is the last of the "clobbered" warnings appearing in
  > the top level directory (at least for my test platforms.  One last
  > spot occurs in the java dir, I'll address that later.)
  > 
  > 	I tested this by bootstrapping on Irix6.  Okay to install?
  > 
  > 		Thanks,
  > 		--Kaveh
  > 
  > 
  > 
  > Tue Mar 16 11:04:19 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
  > 
  >         * c-lex.c: Don't include setjmp.h.
  > 	(parse_float): New static function.
  > 	(pf_args): New struct.
  > 	(yylex): Use them in call to `do_float_handler'.
Thanks.  Looks fine to me.

jeff