* time/strftime.c (strftime: do_number): Adjust P and I after sprintf
in case it wrote fewer than MAXDIGITS chars.
* stdio/fwrite.c (fwrite: fill_buffer): Separate flushing for last
newline from flushing full buffer in loop, fix test so no fflush is
done when last byte written exactly fills the buffer.
* nss/Makefile ($(services:%=$(objpfx)libnss_%.so)): Depend on libc.so.
* sysdeps/mach/hurd/Makefile (LDLIBS-c.so): Variable removed.
(libc.so): Instead, give this deps on lib{mach,hurd}user.so.
* elf/dl-debug.c (_dl_debug_initialize): Use LDBASE arg instead of
extracting _dl_rtld_map.l_addr.
* sysdeps/i386/dl-machine.h (elf_machine_rel): Declare _dl_rtld_map as
weak.
* sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise.
* shlib-versions (*-*-*): Set libnss_db=1.
* elf/rtld.c (dl_main): Set _dl_rtld_map's DT_DEBUG location too.
