[Buildroot] Python for host?

[Buildroot] Python for host?

[Kennedy, Andy Collins via buildroot]

Hi all!

I'm in need of Python 3 and supporting libraries for the host.  I do not
want to build Python3 and the libraries for my limited storage embedded
system, but I do have requirements on it for the host.  One of the
libraries I need is python-pylibfdt.  It seems that I can only select to
build the host version of this package if I have selected packages ->
Python3, then choose the external package at that time.  Given that I
have a build need for this tool (a support package from a vendor that
needs that library and I'm working on a super old Ubuntu distro and
am unable to update) I would really like to select and build the host
package.  I can go through and add in a Config.in.host for this
particular package and dup the .mk file as HOST (removing the
$(eval host-python-package) into the host-...mk file but I feel like
this is the wrong way.

Anyone else in the WORLD having to run BR on a 20yo system and need
Python host?  Anyone have a clue an easy solution?  Am I just being
dumb?  <<<<  I HOPE that is the easy answer.

Thanks,
Andy
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Re: [Buildroot] Python for host?

[Baruch Siach via buildroot]

Hi Andy,

On Fri, Oct 18 2024, Kennedy, Andy Collins via buildroot wrote:
> I'm in need of Python 3 and supporting libraries for the host.  I do not
> want to build Python3 and the libraries for my limited storage embedded
> system, but I do have requirements on it for the host.  One of the
> libraries I need is python-pylibfdt.  It seems that I can only select to
> build the host version of this package if I have selected packages ->
> Python3, then choose the external package at that time.  Given that I
> have a build need for this tool (a support package from a vendor that
> needs that library and I'm working on a super old Ubuntu distro and
> am unable to update) I would really like to select and build the host
> package.  I can go through and add in a Config.in.host for this
> particular package and dup the .mk file as HOST (removing the
> $(eval host-python-package) into the host-...mk file but I feel like
> this is the wrong way.
>
> Anyone else in the WORLD having to run BR on a 20yo system and need
> Python host?  Anyone have a clue an easy solution?  Am I just being
> dumb?  <<<<  I HOPE that is the easy answer.

Adding host-python-pylibfdt to the list of your target package
<PKG>_DEPENDENCIES should be enough. No need for Config.in.host
file. See for example boot/ti-k3-r5-loader/ti-k3-r5-loader.mk, and
boot/uboot/uboot.mk, that both use host-python-pylibfdt.

Hope this helps,
baruch

-- 
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