Re: [ptxdist] Sharing host-* tools

[Michael Olbrich <m.olbrich@pengutronix.de>]

Hi,

On Thu, Sep 06, 2018 at 10:42:19PM +0200, Erwin Rol wrote:
> I am still trying to figure out a better way to share prebuild ptxdist
> projects, some ideas here on the mailing list where interesting but I
> have problems understanding how to apply them to my usecases.
> 
> Already just sharing the host-* tools/libs would be useful, and I do
> not see how I can do that. 
> 
> First lets assume I have 3 projects (A, B and C) and for this example
> they all use the same ptxdist version, but for the rest they have not
> much in common.
> 
> To build those 3 projects I will have to do "ptxdist images" in all 3
> project directories.
> 
> This will cause all host-* tools (like cmake, autoconf, fakeroot, etc)
> to be build 3 times, taking up a lot of time. 
> 
> Is there are way to prebuild all host-* tools and lets the projects
> A,B, and C use those prebuild host tools. A bit like the toolchain, 
> wich is also not build with every ptxdist project. 

For most host-tools dev packages/prebuild archives[1] should work.
Not all packages create such an archive because they need to be relocatable
for this to work. Autotools for example.

And you need to be carefull when you use this. The filename depends on the
version and kconfig options. And since ptxdist-2018.08.0 on the content of
the make and in files.
If you have other differences (e.g. patches) then this will break.

There is also the architecture string (I should remove that for host
packages). You could rename/symlink the files if necessary.


Michael

[1] https://www.ptxdist.org/doc/daily_work_section.html#using-pre-built-archives

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