* config/i386/nto.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Define.
	* config/ia64/hpux.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
	Define.
	* config/linux.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Don't
	undefine.
	* config/mips/linux.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Don't
	undefine.
	* config/mips/netbsd.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
	Don't undefine.
	* config/rs6000/linux.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
	Don't undefine.
	* config/rs6000/linux64.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
	Don't undefine.
	* config/sol2.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Define.
	* config/sparc/netbsd-elf.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
	Don't undefine.
	* config/sparc/openbsd64.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
	Don't undefine.
	* config/sparc/sp64-elf.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX):
	Don't undefine.
	* config/svr4.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Don't
	define.
	* config/xtensa/elf.h (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Don't
	undefine.

From-SVN: r167647