* svr3.h (ASM_FILE_START): Wrap if-clause in squigly brackets.

	* recog.c (memory_address_p): Mark parameter with ATTRIBUTE_UNUSED.

	* regclass.c (choose_hard_reg_mode): Likewise.

	* reload.c (find_valid_class, strict_memory_address_p): Likewise.

	* reorg.c (optimize_skip): Wrap prototype in macro conditionals.

From-SVN: r31364