FTBFS: missing MODULE_LICENSE()

[gordan-bobic]

This looks a lot like #9755 but EL8 already uses gcc8 and switching to gcc9 doesn't help.

System information

Type	Version/Name
Distribution Name	CentOS
Distribution Version	8
Linux Kernel	5.4.x
Architecture	aarch64
ZFS Version	0.8.4
SPL Version	0.8.4

Describe the problem you're observing

./configure fails to build an empty module. Build log shows:
missing MODULE_LICENSE() in /home/hutter/zfs/build/conftest/conftest.o

Describe how to reproduce the problem

Build and install latest 5.4.x mainline kernel from source.
Install ZoL 0.8.4 and run ./autogen.sh; ./configure

./configure will fail when testing whether an empty module can be built.

It builds fine against 4.19.132, 4.14.188 and 4.9.230

[gordan-bobic]

I am not sure what happened to make this go away - I think it was the missing moudle.lds from the kernel build, but I am not 100% sure. I have it working now with no actual code changes on the ZoL side, so closing this.