- Update to glibc 2.29
  * The getcpu wrapper function has been added, which returns the currently
    used CPU and NUMA node
  * Optimized generic exp, exp2, log, log2, pow, sinf, cosf, sincosf and tanf
  * The reallocarray function is now declared under _DEFAULT_SOURCE, not just
    for _GNU_SOURCE, to match BSD environments
  * For powercp64le ABI, Transactional Lock Elision is now enabled iff kernel
    indicates that it will abort the transaction prior to entering the kernel
    (PPC_FEATURE2_HTM_NOSC on hwcap2)
  * The functions posix_spawn_file_actions_addchdir_np and
    posix_spawn_file_actions_addfchdir_np have been added, enabling
    posix_spawn and posix_spawnp to run the new process in a different
    directory
  * The popen and system do not run atfork handlers anymore (BZ#17490)
  * strftime's default formatting of a locale's alternative year (%Ey)
    has been changed to zero-pad the year to a minimum of two digits,
    like "%y"
  * As a GNU extension, the '_' and '-' flags can now be applied to
    "%EY" to control how the year number is formatted
  * The glibc.tune tunable namespace has been renamed to glibc.cpu and the
    tunable glibc.tune.cpu has been renamed to glibc.cpu.name
  * The type of the pr_uid and pr_gid members of struct elf_prpsinfo, defined
    in <sys/procfs.h>, has been corrected to match the type actually used by
    the Linux kernel
  * An archaic GNU extension to scanf, under which '%as', '%aS', and '%a[...]'
    meant to scan a string and allocate space for it with malloc, is now
    restricted to programs compiled in C89 or C++98 mode with _GNU_SOURCE
    defined
- unwind-ctor.patch, old-getdents64.patch, nss-files-leak.patch,
  riscv-feholdexcept-setround.patch, (forwarded request 670585 from Andreas_Schwab)

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