I played with the system yesterday and find Yocto to be great. Being a Gentoo
user, I love the approach taken and see lots of enhancements made. The biggest
one is that fact that some packages, like the kernel and glibc got break down
in a set of feature that can be better controlled than manually setting their
configuration. But, this added flexibility create a new level of
inter-dependencies, which I think Yocto would gain to add support for. Here is
an example, if I add system to poky-tiny, it won't compile, and once I fix
that, it won't boot. The reason is that systemd package depends not only on
other user-space package, but also on kernel features as well as glibc feature
just to compile. There is also other dependency at runtime for certain
functionality as well.
Yocto already has a package dependency mechanism with DEPEND and RDEPEND, it
would be great if we could somehow tie this with feature as well:
DEPENDS="package:feature"
RDEPENDS="package:feature"
This would allow to provide better error indication to the Yocto end-user when
playing with distro/image and new combination. I could see system dependency
added like this:
DEPENDS="linux-yocto-tiny:fhandle,autofs4,ipv6?,devtmpfs,libc:ftraverse,posix-clang-wchar,spawn,utmpx"
Etc... Disregard the syntax as it is simply an idea/example and not intended
as a specification.
Anyway, I am just sharing because I feel this system is really well done, and
see this as an opportunity to get it to another level.
--
Yannick Koehler
--
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