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Commits 9298bfb and f6c2951 both tried to make it possible to select the correct libnl (1 vs. 3) according to what netcf used, when both libraries are installed. This works to avoid libnl-3 when netcf used libnl-1. But on the converse side, if only libnl-1 development code is installed, while netcf uses libnl-3, then configure happily uses libnl-1 anyways, leading to a test failure: $ VIR_TEST_DEBUG=1 ./virdrivermoduletest TEST: virdrivermoduletest 1) Test driver "network" ... OK 2) Test driver "storage" ... OK 3) Test driver "nodedev" ... OK 4) Test driver "secret" ... OK 5) Test driver "nwfilter" ... OK 6) Test driver "interface" ... lt-virdrivermoduletest: route/tc.c:973: rtnl_tc_register: Assertion `0' failed. Aborted It's much nicer to prevent this at configure time, by requiring that if we know what netcf used, then we want the same libnl version. As before, this can be bypassed by someone who knows what they are doing by setting LIBNL_CFLAGS (perhaps useful to the rare person where the build box has a different version of netcf than the installation box). * configure.ac (LIBNL): If we can prove netcf used libnl-3, then don't let configure succeed with libnl-1. Signed-off-by: Eric Blake <eblake@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>