/srv/irclogs.ubuntu.com/2021/12/03/#ubuntu-kernel.txt

sub526Hi all, while building the Ubuntu 20.04 kernel source , I noticed "Makefile:179: recipe for target 'sub-make' failed", full log is here: https://pastebin.com/fbbzauBf09:14
sub526Any suggestions?09:14
juerghsub526, there's probably an error somewhere further up in the log.09:28
sub526juergh: I am trying to build Ubuntu 20.04 kernel source from Ubuntu 16.04 PC with gcc version 5.4.0, is it possible? or do i need to update the gcc version?09:30
juerghsub526, dunno. what is the build error? what you pastebin'ed is just the end result but not the real built error.09:33
juerghsub526, you might just create a 20.04 chroot on your machine and build in there. but without seeing the real error it's impossible to tell if this is a gcc version issue.09:35
sub526juergh: is there a file which holds the complete build log?09:36
juerghsub526, no. you'd have build with something like '<your_build_command> 2>&1 | tee build.log'09:37
sub526juergh: build failed because "/bin/sh: 1: lz4c: not found"10:13
sub526sudo apt-get install liblz4-tool10:14

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