Warning fixes:

Warning fixes:

	* builtins.c (c_getstr): Constify variable.
	* gmon-sol2.c (_mcleanup): Comment out #endif labels.
	* conflict.c (const_conflict_graph_arc): New typedef.
	(arc_hash, arc_eq): Avoid needlessly casting away const-ness.
	* cppmacro.c (builtin_macro): Likewise.
	* dwarf2out.c (output_comp_unit): Constify variable.
	* fix-header.c (v_fatal): Add ATTRIBUTE_PRINTF.
	* protoize.c (IS_SAME_PATH_CHAR): Use TOUPPER, not toupper.
	* ssa.c (ssa_rename_from_hash_function): Avoid needlessly casting
	away const-ness.
	* tradcpp.c (rescan, do_line, macroexpand, macarg): Use
	ISALNUM/ISDIGIT/ISPRINT, not isalnum/isdigit/isprint.
	* varasm.c (const_str_htab_hash, const_str_htab_eq,
	compare_constant_1, record_constant_1): Constify.

From-SVN: r37565