Try out new org.freedesktop.Platform

[jjardon]

Hi,

First of all congrats for the project, it looks really cool

I noticed you are still using the 1.6 org.freedesktop.Platform, I wonder if you would like to try the new version we are working on (future 1.8); It would be of great help to us to find any regression / problem

The only thing you should have to do is to add the new repository and change "1.6" to "master" at : https://github.com/winepak/winepak-sdk-images/blob/master/org.winepak.Sdk.yml#L8 and rebuild, as explained here: https://gitlab.com/freedesktop-sdk/freedesktop-sdk/blob/master/README.md#usage

[julianrichen]

It would be interesting to test 1.8, when I get a chance I'll try to build our Sdk & Platform with it. Always good to help upstream test.

One reason I'm excited for 1.8 was I saw mention of better Compat32 support? I haven't looked into it but does 1.8 offer better support from cross-arch building at the same time. Currently winepak requires each 64bit app that needs WoW64 to include:

• org.winepak.Platform/x86_64/3.0
• org.winepak.Platform.Compat32/x86_64/3.0

for a basic app plus:

• org.winepak.Platform.Wine/x86_64/3.xx-staging
• org.winepak.Platform.Wine.Compat32/x86_64/3.xx-staging

If we need a specific version of wine staging. It would be nice to compile the Compat32 extension directly into the runtime.

[valentindavid]

.Compat32 has been renamed as .Compat.${arch}.

You can see an example of use on my fork of Steam: https://github.com/valentindavid/com.valvesoftware.Steam/tree/manual-rewrite

However we still do not provide cross compilers or multilib. You still need to build separately the 32 bits and 64bits runtimes.

Make sure to put everything you need from 32bits into 64bits within /usr/lib/i386-linux-gnu. That probably includes some executables. Have them in /usr/lib/i386-linux-gnu/wine for example. You can replace them in the original place by a symbolic link to the new place. Then make a .Compat.i386 extension out of this directory, like we do for org.freedesktop.Platform.Compat.i386.

On 64bits, /usr/lib/i386-linux-gnu is a symbolic link to /app/lib/i386-linux-gnu. So applications need to bind the extension there. --extension=org.freedesktop.Platform.Compat.i386=directory=lib/i386-linux-gnu

Also, use a recent version of flatpak-builder to make sure it installs libraries automatically in /usr/lib/i386-linux-gnu when using 1.8.

For context, the "better Compat32 support" is mainly about not having to fix RPATH/RUNPATH, or paths to plugins/modules/drivers (like dri drivers). Files are where they are expected to be. Apps also do not have to override lots of environment variables.

[julianrichen]

So you no longer need to copy the ld-linux.so.2, that's nice.

With the new fd.o//1.8 would it be possible to mount org.winepak.Platform.Compat.i386 in the x86_64 runtime so apps don't need to include it? Nearly 0 windows apps can run without WoW64 support so it's need almost all the time :/

That or create a org.winepak.Sdk.Compat.i386 and mount that as an SDK extension so we could copy the pre-built i386 wine files we need during the x86_64 build?

[valentindavid]

Yes. You can make org.winepak.Platform.Compat.i386 to bind automatically. Replace the symbolic link /usr/lib/i386-linux-gnu by an empty directory. Then add it as an extension to the runtime.

You can also copy the files. This is also possible.

[valentindavid]

I have started a branch in order to test the new Freedesktop SDK.
https://github.com/valentindavid/winepak-sdk-images/tree/sdk-1.8

[valentindavid]

Note that /usr/libexec/freedesktop-post.sh should be run also on 1.8. It has nothing to do with ld-*.so* links. It is done to regenerate information that needs to collect information on the final state. Mostly it is to update cache data. Because the script is automatically generated in 1.8, there are actually more commands.

[valentindavid]

I have updated the branch to now build i386 extension to be used directly by runtime. There is still some work to be done for .Sdk.Compat.i386 extensions. And also for i386 extension to .Wine extensions. But the principle is the same.

[valentindavid]

You need to run sh compat.sh 3.0 to generate this extension.

[jjardon]

Only as a reference, upstream issue here: https://gitlab.com/freedesktop-sdk/freedesktop-sdk/issues/348

[julianrichen]

Moving to Buildstream in #45 which will target the latest, close as there's no point in keeping this open.