Backported from upstream git:
Fix user busy errors at userdel (patch from Fedora).
Fix possible crash if gmtime() returns NULL.
chsh: Fix duplicate warning.
submap: Add control scripts for newuidmap/newgidmap.
Simplify getulong (fixes CVE-2016-6252).

E2K: avoid -Werror (lcc) (by Michael Shigorin).
Fix build on x32.
Fix build without selinux again.

Don't treat cpp warnings as error.
Fix build without selinux support.

Lazy link with -lsemanage (by Dmitry V. Levin).

chage: Fix work with tcb.

Package /etc/subuid and /etc/subgid files.
Add -Werror to optflags.
Explicitly use --with-tcb configure option.
Fix compiler warnings.
vipw: Check link() return status.
useradd: Check chown/chmod return status.
Fix uninitialized variable.
Fix usermod's manpage.

Add submap subpackage (closes: #31201).
Merge ALT-specific tcb patch.
userdel.c: Fix variable name in case of tcb.
Add missing include in case of tcb.
Fix build with --as-needed in case of tcb.
Makefile: Drop passwd from suidubins.
Update ALT-specific patches.
Drop obsoleted patches.
Updated to 4.2.1.

Fix build: Remove deprecated AM_C_PROTOTYPES.

Fixed groupmod.

useradd: Print exit code if an error was occurred.

Do not create mail spool if -M option was given.

Package suite subpackage as noarch.

Use _exit() for exit from child.
spawn.c: Backport from upstream's svn.

useradd: Add 'private' to allowed values of CREATE_MAIL_SPOOL.
Don't show error message if flashing nscd cache is failed.

gshadow.c: Drop unused variable.
Added lib/spawn.c and lib/spawn.h.
useradd.c: Fix fprintf() format string.
useradd.c: Avoid redefinition of SHELL.
Fix missing includes.
Fix some const issues.
Fix find_new_uid/gid for big UID/GID_MAX.
Fix gshadow functions from shadow utils.

Drop obsoleted %post{,un}_ldconfig.
Rebuild for new c6.