* sysdep.h: Include sys/stat.h here.

	* sysdep.h: Include sys/stat.h here.
	* ar.c: Don't include headers already included by sysdep.h.
	* bucomm.c: Likewise.
	* budbg.h: Likewise.
	* dlltool.h: Likewise.
	* elfedit.c: Likewise.
	* nlmconv.c: Likewise.
	* objcopy.c: Likewise.
	* objdump.c: Likewise.
	* objdump.h: Likewise.
	* readelf.c: Likewise.
	* rename.c: Likewise.
	* resrc.c: Likewise.
	* strings.c: Likewise.
	* windres.c: Likewise.
	* od-macho.c: Ensure #include sysdep.h is first.
	* od-xcoff.c: Likewise.
	* dllwrap.c: Remove alloca pragma handled by sysdep.h, and
	remove duplicate headers.
	* dlltool.c: Likewise and ensure #include sysdep.h is first.