Ok, this was introduced upstream somewhere between 2.36.0 (jammy
release) and 2.44.0 (jammy-updates). webkit2gtk now detects whether
gbm_bo_create_with_modifiers2 exists at build time; if so, it uses them.

This is not a problem for the main archive, as the libgbm that mesa
provides includes those symbols, but some proprietary drivers include
their own libgbm (notably, here, the ARM MALI drivers) and this change
has accidentally and silently broken the effective driver ABI for Ubuntu
22.04.

In this case here it seems like it will be easy enough to patch the code
to dynamically resolve gbm_bo_create_with_modifiers2 - the upstream code
already has an implementation for where this is not available at build
time.

That's not an archive-wide solution, though. It's not *entirely* obvious
to me whether this should be considered an SRU regression - I'm inclined
to think so, but I don't hold that opinion strongly. I'll take the
temperature of the SRU team on this.

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https://bugs.launchpad.net/bugs/2063476

Title:
  libwebkit2gtk-4.0.so.37: undefined symbol:
  gbm_bo_create_with_modifiers2

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