(__old_sys_siglist, __old_sys_sigabbrev): Use strong_alias and declare_symbol. * sysdeps/mach/hurd/siglist.h (OLD_SIGLIST_SIZE_STR): Remove. (OLD_SIGLIST_SIZE): Define. * sysdeps/unix/sysv/linux/siglist.h (OLD_SIGLIST_SIZE_STR): Remove. (OLD_SIGLIST_SIZE): Define. * sysdeps/unix/sysv/linux/arm/siglist.c: Remove.