[libvirt] lxc: shutdown $domain broken in 1.2.2

[Stephan Sachse]

host: centos-6.5
kernel: 3.13.2-4.el6.x86_64
guest: fedora20

since libvirt-1.2.2 i can not shutdown this domain. works fine with
libvirt-1.2.1

# virsh shutdown fedora2
error: Failed to shutdown domain fedora2
error: Mount namespaces are not available on this platform: Function
not implemented

from the logfile: 14478: error : virProcessRunInMountNamespace:982 :
Mount namespaces are not available on this platform: Function not
implemented

the buildhost for the rpm is a centos-6.5 system with kernel 3.1.8
(dont ask! its a vserver system) and the test for "setns" failed

configure:9592: checking for setns
configure:9592: gcc -std=gnu99 -o conftest -g -O2   conftest.c  >&5
/tmp/cchlir6v.o: In function `main':
/builddir/build/BUILD/libvirt-1.2.2/conftest.c:184: undefined
reference to `setns'
collect2: ld returned 1 exit status

setns() was added in glibc-2.14 centos6 has glibc-2.12

attached is a fix for this problem.

stolen from: http://cgit.freedesktop.org/systemd/systemd/commit/src/shared/missing.h?id=3b794314149e40afaf3c456285e1e529747b6560

/stephan

-- 
Software is like sex, it's better when it's free!
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