LINK  x86_64-softmmu/qemu-system-x86_64
../libhw64/virtio-pci.o: In function `virtio_pci_set_guest_notifiers':
/build/src/qemu-kvm-1.1.1/hw/virtio-pci.c:632: undefined reference to `kvm_kernel_irqchip'
/build/src/qemu-kvm-1.1.1/hw/virtio-pci.c:632: undefined reference to `kvm_kernel_irqchip'
/build/src/qemu-kvm-1.1.1/hw/virtio-pci.c:637: undefined reference to `kvm_kernel_irqchip'
/build/src/qemu-kvm-1.1.1/hw/virtio-pci.c:650: undefined reference to `kvm_kernel_irqchip'
../libhw64/msi.o: In function `msi_init':
/build/src/qemu-kvm-1.1.1/hw/msi.c:260: undefined reference to `kvm_kernel_irqchip'
../libhw64/msi.o:/build/src/qemu-kvm-1.1.1/hw/msi.c:260: more undefined references to `kvm_kernel_irqchip' follow
collect2: error: ld returned 1 exit status
make[1]: *** [qemu-system-x86_64] Error 1

Unsure if this package does or did work on mips64el, maybe we should unarch it instead.