Hi Xiao,

May I know the package names? and arch of them?

Btw, there is a way to analyse circular dependent packages. [1]

Debian wiki has leff info about circular build but [2] has something.

In case of installation of fedora/centos/rhel, rpm -Uvh a.rpm b.rpm will solve the problem.

[1] https://wiki.debian.org/CircularBuildDependencies

[2] https://www.debian.org/doc/debian-policy/ch-relationships.html#binary-dependencies-depends-recommends-suggests-enhances-pre-depends

Regards,

Danishka

On Sat, Sep 18, 2021 at 12:24 PM Zhang, Xiao <xiao.zhang@windriver.com> wrote:

  Hi，


We are trying to construct basic environment for porting starlingX on
Debian. While when I dealing with the build order of user space
packages, the loop dependent problem blocked me.

The easiest example: source package A build depend on B while B is also
build depend on A. We can just build A, B, A, B and only use the later
result.

A fairly complex example: A depends on B and C, B depends on D, C
depends on F, D depends on A and F. In this case there will be three
cycles as below:

A->B->D->A, A->B->D->F->A, A->C->F->A . Even more, if in some cases we
needn't B or D, then we have only one cycle: ACFA

I tried to find a method to deal with it but failed.

So I wonder how did we deal with such loop dependent before, on CentOS.
Any advises about it?


Thanks a lot

Xiao


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