* Makefile.in (ALL_TARGET_OBS): Remove object files that require

	* Makefile.in (ALL_TARGET_OBS): Remove object files that require
	64-bit CORE_ADDR and BFD support, move them to ...
	(ALL_64_TARGET_OBS): ... this new variable.
	* configure.ac: Check for --enable-64-bit-bfd option.  Only add
	64-bit targets with --enable-targets=all if BFD supports 64-bit.
	* configure: Regenerate.

	* i386-cygwin-tdep.c (i386_cygwin_osabi_sniffer): Do not claim
	all elf32-i386 executables, only cygwin core files.