* config/mips/elf.h (ASM_OUTPUT_DEF,ASM_WEAKEN_LABEL,
	ASM_OUTPUT_WEAK_ALIAS): Define.
	* config/mips/elf64.h: Same.
	* config/mips/r3900.h (ASM_OUTPUT_DEF,SUPPORTS_WEAK,
	ASM_WEAKEN_LABEL): Removed.

From-SVN: r19491