Created attachment 590058 [details] virtualbox-modules-6.0.12-r1.ebuild to build against kernel 5.3 virtualbox-modules-6.0.12 doesn't compile against kernel 5.3 because of changes in APIs. I've made an ebuild and adapted a patch from upstream mailing list (https://www.virtualbox.org/pipermail/vbox-dev/2019-July/015297.html) in order to convice it to build against kernel 5.3.
Created attachment 590060 [details, diff] virtaulbox-modules-kernel-5.3.patch to be placed in files/ subfolder of ebuild. Companion to virtualbox-modules-6.0.12-r1.ebuild.
*** This bug has been marked as a duplicate of bug 694560 ***