manually merge the opensl_stream fix to the libpd module

[Ant1r]

Even if the fix hasn't been merged yet into libpd's master branch, it appears that, since a PR has been sent to the libpd repo (libpd/libpd#410), the commit libpd/libpd@d7d1e1e is already available to amend our own libpd state.

So no need to wait :-)

[joebowbeer]

Can you PR to my branch #147 ?

The build won't work without the changes I'm making in #147 (which of course include some of your changes)

I want to get a working build in CI before we merge

My branch pins ubuntu-22.04:

// ndkVersion must be one of those provided by the ubuntu-22.04 runner
// https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md
//
// Full list of NDK versions:
// https://developer.android.com/ndk/downloads

[Ant1r]

Actually I'm working on my side, and I now have a working state (currently on my fork master); the CI build obviously stops at publish stage, because I'm not authorized, but artifact is published in the github/actions.

I'm now building with a 27.2 ndk and recent tools.
I've found a working solution for the "externals" issues, like #127 and #75.

I'm not sure when I can work on this again, so I guess it's a good idea to make a PR with my working state, so you can cherry-pick as you wish (and hopefully we can have a working state as a basis!)

[joebowbeer]

Can you demonstrate that your opensl_stream commit fixes the build issue of #147 ?

It would be great to get this build in CI working (#147) and the only thing blocking it AFAIK is opensl_stream

In this PR, the build failure is due to what I explained above

> NDK is not installed

[Ant1r]

Actually I can't target to your PR I think, only to a branch (here jeobowbeer-patch-2). So some commits seem missing...

OTOH my PR #150 builds!

[Ant1r]

libpd/libpd@d7d1e1e has been merged to libpd:master so this PR is obsolete.
Updating libpd submodule to libpd:master is enough.