bfd/

	* elfxx-mips.c (mips_elf_calculate_relocation): Correct handling
	of undefined symbols.

	ld/testsuite/
	* ld-mips-elf/undefined.d: New test.
	* ld-mips-elf/undefined.s: Source for the new test.
	* ld-mips-elf/mips-elf.exp: Run the new test.