Re: [ptxdist] lndir'ing sysroot-target

[Erwin Rol <mailinglists@erwinrol.com>]

On 5-11-2011 12:23, Michael Olbrich wrote:
> Hi,
>
> On Fri, Nov 04, 2011 at 08:46:41PM +0100, Erwin Rol wrote:
>> in my search to find a way to split ptxdist into an OS build and
>> application build process I tried the following.
>>
>> 1) create and build an ptxdist project with everything the OS needs
>> like glib, gtk, dbus, cairo, etc.
>> 2) create an ptxdist project with applications. And don't have any
>> "select"s to OS parts like gtk or cairo in the .in files of the
>> applications.
>> 3) lndir sysroot-target from the OS build into the sysroot-target of
>> the application build.
>> 4) build the application images.
>>
>>
>> That way I was able to build my applications apart from the OS, but
>> still use ptxdist to build.
>>
>> Would this be a feature that others are interested in ?
>>
>> And any ideas or warnings on what could go wrong ?
>
> Something like that already exists. With "build type" == "production" you
> can put the build in some global location. Then with "use pre-built
> production release" reuse it and add packages without dependencies on the
> core system like you suggested.
> Both sources are then used to create the images. I think it's even possible
> to combine that with collections.
> "built on top of another platform" is a variation of this where you use a
> different local platform in the same BSP build, e.g. a generic ARMv5 core
> platform + several variants with extra local packages.
>
> This works well enough if the base platform is stable. However, because of
> the missing dependencies you should rebuilt everything when it changes.
>

Is that really the same. When I understand you correctly the Production 
build only builds part of the system and the "use pre-built" creates the 
final images out of the two parts.

That is not the same as generating an OS image that runs and works fine. 
And than use a second ptxdist project to create applications that you 
can be installed on that OS.

Or did I misunderstand something?

- Erwin

PS: is there any documentation on how those mentioned feature should 
work, cause the "Help" in ptxdist isn't really helpful.






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