glibc-2.20 seteuid()/setegid() : Function not implemented

[Petr Silhavy]

Hi list,
after I installed glibc-2.20 as my primary libc, I got error messages 
from all utilities calling seteuid/setegid e.g. :

# xterm &
xterm: setegid(0): Function not implemented
xterm: seteuid(0): Function not implemented
xterm: seteuid(0): Function not implemented
xterm: setegid(0): Function not implemented

When I installed glibc-2.20 as primary on systemd container/virtual host
on the same system - no problem here .

Any hints, ideas, patches ? TIA

Environment:
Linux 3.16.3
gcc (GCC) 4.9.1
GNU ld (GNU Binutils) 2.24
GNU Make 3.82
Built for i686-pc-linux-gnu

I tried following configure options with no difference to 
"Function not implemented"

../glibc-2.20/configure --prefix=/usr --enable-kernel=2.6.0 --with-headers=/usr/src/linux-3.16/usr/include
../glibc-2.20/configure --prefix=/usr --enable-kernel=3.5.0 --with-headers=/usr/src/linux-3.16/usr/include
../glibc-2.20/configure --prefix=/usr --enable-kernel=2.6.0
../glibc-2.20/configure --prefix=/usr
-- 
Petr Silhavy