I'm analyzing different PKGBUILDs to learn creating packages for Arch. I saw in a lot of them, that they do make on sources, and then manually copy files in the different places with the install command, instead of running make install. Is there a reason for it?
Examples:
Well for one, these are dkms packages, and the actual make/etc is handled via dkms at install time, not make time.
For another reason, perhaps the Makefile itself is rather shoddy itself and would not work/could not be made to work with arch linux's packaging standards.
If you check out more repo PKGBUILDs you may find more that actually do use
make install DESTDIR=${pkgdir}, where ${pkgdir} resolves to the root directory
that is tar'd up under fakeroot to set proper permissions during the package()
function of the PKGBUILD