%ix86: fixed linking with both librt.a and libpthread.a.

Backported upstream secutiry patches (fixes CVE-2017-15670 CVE-2017-15804).

Backported upstream fixes for sw bugs: 19648 19703 19861 20005 20010
2016-4429).
Backported upstream implementation of group merging (NSS).

Backported upstream fixes for sw bugs:
2016-1234, CVE-2016-3075, CVE-2016-3706).

Updated to 2.23 branch with backports from master and fedora.

Updated to 2.22 branch with backports from master and fedora.

libc.so: link libc.so.6 both before and after libc_nonshared.a,
-as-needed reported

Backported more upstream fixes, including fixes for sw bugs:
glibc-devel: added /usr/include/gnu/stubs-32.h to provides.

Backported upstream fixes for sw bugs:
2012-4412, CVE-2012-4424, CVE-2013-4237,
2013-4332, CVE-2013-4458, CVE-2013-4788).
x86_64: packaged /usr/include/gnu/stubs-32.h from x86.

getaddrinfo: updated fix for sw#15339.

getaddrinfo: backported fixes for sw#15330 and sw#15339.

getaddrinfo: reverted the change that made ECONNREFUSED

stdlib.h: Made __secure_getenv prototype available without
D_GNU_SOURCE as in older glibc releases.

Updated to 2.17 branch with backports from master, fedora and
alpha@.
glob: changed to use getuid+getpwuid_r instead of
Reexported __secure_getenv while apps are being ported

ls.so:
related environment sanitation;
related environment sanitation on x86-64.

Updated to 2.16 branch with backports from master.