* system.h (OUTPUT_ADDR_CONST_EXTRA): Poison.
	* doc/tm.texi.in (OUTPUT_ADDR_CONST_EXTRA): Remove documentation.
	* doc/tm.texi: Regenerate.
	* target.def (output_addr_const_extra): Use
	hook_bool_FILEptr_rtx_false.
	* targhooks.c (default_asm_output_addr_const_extra): Remove.
	* targhooks.h (default_asm_output_addr_const_extra): Remove.
	* hooks.c (hook_bool_FILEptr_rtx_false): New functions.
	* hooks.h (hook_bool_FILEptr_rtx_false): Declare.

From-SVN: r179630