* toplev.c (set_fast_math_flags): Don't use ISO C style function
	definitions.
	* gengtype.c (open_base_files): Likewise.
	(close_output_files): Likewise.
	* tracer.c (find_best_predecessor): Likewise.
	(find_best_successor): Likewise.
	(ignore_bb_p): Likewise.

From-SVN: r55286