Ia have the same problems with new kernel;
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/usr/bin/install -c -m 644 Navigation.py NavigationInstance.py RecordTimer.py ServiceReference.py keyids.py keymapparser.py mytest.py skin.py timer.py GlobalActions.py e2reactor.py '/usr/local/e2/lib/enigma2/python'
Byte-compiling python modules...
Navigation.pyNavigationInstance.pyRecordTimer.pyServiceReference.pykeyids.pykeymapparser.pymytest.pyskin.pytimer.pyGlobalActions.pye2reactor.py
Byte-compiling python modules (optimized versions) ...
Navigation.pyNavigationInstance.pyRecordTimer.pyServiceReference.pykeyids.pykeymapparser.pymytest.pyskin.pytimer.pyGlobalActions.pye2reactor.py
/bin/mkdir -p '/usr/local/e2/share/meta'
/usr/bin/install -c -m 644 index-enigma2.xml '/usr/local/e2/share/meta'
/bin/mkdir -p '/usr/local/e2/lib/pkgconfig'
/usr/bin/install -c -m 644 enigma2.pc '/usr/local/e2/lib/pkgconfig'
make[2]: Leaving directory '/usr/src/enigma2pc-RC1/enigma2'
make[1]: Leaving directory '/usr/src/enigma2pc-RC1/enigma2'
modprobe: FATAL: Module dvbsoftwareca not found.
rm: cannot remove '/dev/dvb/adapter0/dvr1': No such file or directory
rm: cannot remove '/dev/dvb/adapter0/demux1': No such file or directory
make -C /lib/modules/4.8.0-56-generic/build SUBDIRS=/usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca modules
make[1]: Entering directory '/usr/src/linux-headers-4.8.0-56-generic'
CC [M] /usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca/dvb_softwareca.o
/usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca/dvb_softwareca.c: In function ‘dvblb_init’:
/usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca/dvb_softwareca.c:239:21: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
dvb_class->devnode = dvb_devnode;
^
cc1: some warnings being treated as errors
scripts/Makefile.build:289: recipe for target '/usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca/dvb_softwareca.o' failed
make[2]: *** [/usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca/dvb_softwareca.o] Error 1
Makefile:1491: recipe for target '_module_/usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca' failed
make[1]: *** [_module_/usr/src/enigma2pc-RC1/enigma2/dvbsoftwareca] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.8.0-56-generic'
Makefile:7: recipe for target 'default' failed
make: *** [default] Error 2
An error occured while building OpenPliPC - section dvbsoftwareca
john@ubuntu:/usr/src/enigma2pc-RC1$ uname -a
Linux desktop 4.8.0-56-generic #61~16.04.1-Ubuntu SMP Wed Jun 14 11:58:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
With old kernel (4.4.x) I dont have this error.