Hello Victor, I think you missed something ;-) On 2017-03-22 10:51 +0000, O Mahony, Billy wrote: > However when I compile the first example in this LWN article > https://lwn.net/Articles/691932/ > with gcc-6 C compiler, it fails with error: redefinition of 'foo'... On 30/03/2017 02:10, Victor Rodriguez wrote: > You can also read this LWN article: > > https://lwn.net/Articles/691932/ Regards.