LinuxQuestions.org - installing libffado

I've tried to install libffado, I typed scons PREFIX=/usr DEBUG=1 and it worked fine, then I typed scons install and this is what happend:

scons: Reading SConscript files ...
Checking for a working C-compiler (cached) yes
Checking for a working C++-compiler (cached) yes
Checking for pkg-config (at least version 0.0.0)... (cached) yes
Checking for C header file expat.h... (cached) yes
Checking for XML_ExpatVersion() in C library expat... (cached) yes
Checking for libraw1394 (1.3.0 or higher)... (cached) yes
Checking for dbus-1 (1.0 or higher)... (cached) yes
Checking for libxml++-2.6 (2.13.0 or higher)... (cached) yes
Checking for libiec61883 (1.1.0 or higher)... (cached) yes
Checking for lrint(3.2) in C library m... (cached) yes
Checking for lrintf(3.2) in C library m... (cached) yes
Checking whether 'which pyuic4' executes (cached) no
Checking whether 'which pyuic' executes (cached) yes
Checking for the python module 'dbus' (cached) yes
Checking for the python module 'qt' (cached) yes
Checking whether 'xdg-desktop-menu --help' executes (cached) yes
Trying to find the system triple: (cached) i686-pc-linux-gnu
Doing a DEBUG build
Detected DIST_TARGET = i686
Doing a 32-bit build
rm -f /usr/bin/ffadomixer
scons: done reading SConscript files.
scons: Building targets ...
Install file: "src/libffado.so" as "/usr/lib/libffado.so"
building 'libffado.pc' from 'libffado.pc.in'
Install file: "libffado.pc" as "/usr/lib/pkgconfig/libffado.pc"
Install file: "libffado/ffado.h" as "/usr/include/libffado/ffado.h"
Install file: "configuration" as "/usr/share/libffado/configuration"
Install file: "support/mixer/ffado_regdialog.py" as "/usr/share/libffado/python-qt3/ffado_regdialog.py"
Install file: "support/mixer/ffado_regdialogui.py" as "/usr/share/libffado/python-qt3/ffado_regdialogui.py"
Install file: "support/mixer/ffado_registration.py" as "/usr/share/libffado/python-qt3/ffado_registration.py"
Install file: "support/mixer/ffadomixer_config.py" as "/usr/share/libffado/python-qt3/ffadomixer_config.py"
Install file: "support/mixer/mixer_audiofire.py" as "/usr/share/libffado/python-qt3/mixer_audiofire.py"
Install file: "support/mixer/mixer_audiofire_settingsui.py" as "/usr/share/libffado/python-qt3/mixer_audiofire_settingsui.py"
Install file: "support/mixer/mixer_audiofire_stripui.py" as "/usr/share/libffado/python-qt3/mixer_audiofire_stripui.py"
Install file: "support/mixer/mixer_bcoaudio5.py" as "/usr/share/libffado/python-qt3/mixer_bcoaudio5.py"
Install file: "support/mixer/mixer_bcoaudio5ui.py" as "/usr/share/libffado/python-qt3/mixer_bcoaudio5ui.py"
Install file: "support/mixer/mixer_dummy.py" as "/usr/share/libffado/python-qt3/mixer_dummy.py"
Install file: "support/mixer/mixer_dummyui.py" as "/usr/share/libffado/python-qt3/mixer_dummyui.py"
Install file: "support/mixer/mixer_edirolfa101.py" as "/usr/share/libffado/python-qt3/mixer_edirolfa101.py"
Install file: "support/mixer/mixer_edirolfa101ui.py" as "/usr/share/libffado/python-qt3/mixer_edirolfa101ui.py"
Install file: "support/mixer/mixer_edirolfa66.py" as "/usr/share/libffado/python-qt3/mixer_edirolfa66.py"
Install file: "support/mixer/mixer_edirolfa66ui.py" as "/usr/share/libffado/python-qt3/mixer_edirolfa66ui.py"
Install file: "support/mixer/mixer_global.py" as "/usr/share/libffado/python-qt3/mixer_global.py"
Install file: "support/mixer/mixer_globalui.py" as "/usr/share/libffado/python-qt3/mixer_globalui.py"
Install file: "support/mixer/mixer_mackie_generic.py" as "/usr/share/libffado/python-qt3/mixer_mackie_generic.py"
Install file: "support/mixer/mixer_mackie_genericui.py" as "/usr/share/libffado/python-qt3/mixer_mackie_genericui.py"
Install file: "support/mixer/mixer_motu.py" as "/usr/share/libffado/python-qt3/mixer_motu.py"
Install file: "support/mixer/mixer_motuui.py" as "/usr/share/libffado/python-qt3/mixer_motuui.py"
Install file: "support/mixer/mixer_phase24.py" as "/usr/share/libffado/python-qt3/mixer_phase24.py"
Install file: "support/mixer/mixer_phase24ui.py" as "/usr/share/libffado/python-qt3/mixer_phase24ui.py"
Install file: "support/mixer/mixer_phase88.py" as "/usr/share/libffado/python-qt3/mixer_phase88.py"
Install file: "support/mixer/mixer_phase88ui.py" as "/usr/share/libffado/python-qt3/mixer_phase88ui.py"
Install file: "support/mixer/mixer_quatafire.py" as "/usr/share/libffado/python-qt3/mixer_quatafire.py"
Install file: "support/mixer/mixer_quatafireui.py" as "/usr/share/libffado/python-qt3/mixer_quatafireui.py"
Install file: "support/mixer/mixer_saffire.py" as "/usr/share/libffado/python-qt3/mixer_saffire.py"
Install file: "support/mixer/mixer_saffire_base.py" as "/usr/share/libffado/python-qt3/mixer_saffire_base.py"
Install file: "support/mixer/mixer_saffire_monoui.py" as "/usr/share/libffado/python-qt3/mixer_saffire_monoui.py"
Install file: "support/mixer/mixer_saffire_stereoui.py" as "/usr/share/libffado/python-qt3/mixer_saffire_stereoui.py"
Install file: "support/mixer/mixer_saffirele.py" as "/usr/share/libffado/python-qt3/mixer_saffirele.py"
Install file: "support/mixer/mixer_saffirelelargeui.py" as "/usr/share/libffado/python-qt3/mixer_saffirelelargeui.py"
Install file: "support/mixer/mixer_saffirelesmallui.py" as "/usr/share/libffado/python-qt3/mixer_saffirelesmallui.py"
Install file: "support/mixer/mixer_saffirepro.py" as "/usr/share/libffado/python-qt3/mixer_saffirepro.py"
Install file: "support/mixer/mixer_saffireprolargeui.py" as "/usr/share/libffado/python-qt3/mixer_saffireprolargeui.py"
Install file: "support/mixer/mixer_saffireprosmallui.py" as "/usr/share/libffado/python-qt3/mixer_saffireprosmallui.py"
Install file: "support/firmware/ffado-bridgeco-downloader" as "/usr/bin/ffado-bridgeco-downloader"
Install file: "support/dbus/ffado-dbus-server" as "/usr/bin/ffado-dbus-server"
Install file: "support/tools/ffado-diag" as "/usr/bin/ffado-diag"
Install file: "support/firmware/ffado-fireworks-downloader" as "/usr/bin/ffado-fireworks-downloader"
Install file: "support/mixer/ffado-mixer-qt3" as "/usr/bin/ffado-mixer-qt3"
Install file: "tests/ffado-test" as "/usr/bin/ffado-test"
Install file: "tests/systemtests/ffado-test-isorecv" as "/usr/bin/ffado-test-isorecv"
Install file: "tests/systemtests/ffado-test-isoxmit" as "/usr/bin/ffado-test-isoxmit"
Install file: "tests/streaming/ffado-test-streaming" as "/usr/bin/ffado-test-streaming"
scons: *** DirNodeInfo instance has no attribute 'csig'
scons: building terminated because of errors.