configure: add check_libtirpc()

This patch adds a configure function to check if libtirpc is installed
on the build system. If this is the case, it makes iproute2 to compile
with libtirpc support.

Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
1 file changed