[Starlingx-discuss] Understanding package building order

[Cordoba Malibran, Erich]

Hi all, 

I'm trying to understand how the build system decides what to build on
specific scenarios. Let's say we have a complete build and then we run:

$ build-pkgs bash

This will rebuild the bash package, but also the build system decides to
delete and rebuild a set of packages that I don't understand why are
being rebuild, for example:

iptables-1.4.21-18.0.1.el7.tis.3.x86_64.rpm
kernel-3.10.0-862.6.3.el7.35.tis.x86_64.rpm
qemu-kvm-common-ev-2.10.0-0.tis.0.x86_64.rpm
sm-common-libs-1.0.0-19.tis.x86_64.rpm

and a big list of packages. So, the main question here is why the build system
decides to rebuild a kernel (taking an example) in order to rebuild bash.

Thank you, 

-Erich