Hello Hans! > linux-4.9.91-x86_64: ERRORS > /home/hans/work/build/media_build/v4l/dw9807.c:321:3: error The build works in my tree ... ?!? I can't find the file in media_tree: find . -name "*9807*" Can you please check if there is something wrong with your media_tree version which is used for the daily build. I have 8ed8bba70b43 as top commit. And another thing: ./prepare_kernel.sh 3.2 x86_64 fails with fatal error: linux/compiler-gcc8.h: No such file or directory this leads to a build error in the daily build also. BR, Jasmin