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compile kernel module to many distros and versions best practices

Hi all,
I maintain a device driver (VFS).

For each kernel/distro we support, we compile our sources for that specific kernel/distro.
This means, If i want to support latest redhat 7 3.10.0-1062
I get a redhat machine (or use existing), I download my desired packages, kernel-headers/devel/sources for 3.10.0-1062
Then I compile my code using these headers/sources, if there are changes in kernel headers/sources, I get compilation errors and solve them.

I maintain Suse/Redhat/Ubunto and more different distro and different versions (Suse 11.4, 12.2, 12.3 etc..)
Is there a generic approach to my problem ?

E.g make 1 global machine that can contains all headers/sources for my target kernels ?
Or 1 machine per distro, at the moment I have same Suse 11.4 that contains all kernels that are available for 11.4, but it still require me to have Suse 11.4, 12.2,12.3 machines. Redhat 6, Redhat7.



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