Hi, EL6's build needs to add a new libnl-devel dependancy : DEBUG util.py:417: --> Processing Dependency: libnl.so.1()(64bit) for package: netcf-libs-0.2.4-4.el6.x86_64 checking for LIBNL... no configure: error: libnl-devel >= 1.1 is required for macvtap support Here is my diff for EL6 : diff -uri a/libvirt.spec b/libvirt.spec --- a/libvirt.spec 2016-05-28 19:32:19.000000000 +0200 +++ b/libvirt.spec 2016-06-03 10:21:20.931512391 +0200 @@ -302,6 +302,9 @@ %endif BuildRequires: libpcap-devel BuildRequires: libnl3-devel +%if 0%{?rhel} && 0%{?rhel} < 7 +BuildRequires: libnl-devel +%endif BuildRequires: avahi-devel BuildRequires: libselinux-devel BuildRequires: dnsmasq >= 2.41 @@ -1357,16 +1360,6 @@ /sbin/service virtlockd reload > /dev/null 2>&1 || : /sbin/service virtlogd reload > /dev/null 2>&1 || : /sbin/service libvirtd condrestart > /dev/null 2>&1 -fi -%endif - -%if %{with_systemd} -%else -%triggerpostun daemon -- libvirt-daemon < 1.2.1 -if [ "$1" -ge "1" ]; then - /sbin/service virtlockd reload > /dev/null 2>&1 || : - /sbin/service virtlogd reload > /dev/null 2>&1 || : - /sbin/service libvirtd condrestart > /dev/null 2>&1 fi %endif Regards, Jean-Marc Le 24/05/2016 11:28, Daniel Veillard a écrit :