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Re: [scl.org] rh-python36 SPEC file question (circular dependency)



On Mon, Jun 4, 2018 at 9:38 PM Joshua Kramer <joskra42 list gmail com> wrote:
>
> Hello,
>
> I am trying to compile rh-python36 to use with CentOS on a Raspberry Pi.
>
> On line 192 of the SPEC file are these lines:
> %if 0%{?with_rewheel}
> BuildRequires: %{?scl_prefix}python-setuptools
> BuildRequires: %{?scl_prefix}python-pip
> %endif
>
> What is this supposed to do?  It prevents the package from building,
> because there is a circular dependency- if I try to build python36, it
> complains that python36-setuptools and python36-pip are not
> installed... but I can't install those without having Python installed
> first.  If I comment those lines out I get no error and the build
> almost completes.  (It then fails the "multiprocessing" test, but
> that's beside the point.)  However, I don't want to break something by
> commenting them out... so is there a better or "right" way to get rid
> of the circular dependency?
>

Python is a two-cycle build. You build the first time with rewheel
disabled (that removes those BRs), then after that's successfully
built, you use those artifacts to build again with rewheel enabled.


-- 
真実はいつも一つ!/ Always, there's only one truth!


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