* sysdeps/unix/make-syscalls.sh: Insert $(make-target-directory) at

* sysdeps/unix/make-syscalls.sh: Insert $(make-target-directory) at

	the beginning of generated target commands.

	* csu/Makefile ($(objpfx)crti.o, $(objpfx)crtn.o): Add explicit
	dependencies for these in case implicit rule search skipped the
	nonexistent source directory.
	* sysdeps/gnu/Makefile ($(objpfx)errlist.d): Give this rule all the
	files with $(object-suffixes) as targets too.
	* Makerules [no_deps && objpfx] (before-compile): Add $(objpfx).
	and a target for it using $(make-target-directory).

	* Rules (before-compile): Add $(common-objpfx)bits/stdio-lim.h.

	* sysdeps/unix/sysv/linux/bits/pthreadtypes.h: Moved to ...
	* sysdeps/generic/bits/pthreadtypes.h: ... here.