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Message #116111
[Bug 725434] Re: Nvidia drivers lead to extra memory usage for each process using libGL
Summary of what was discussed and tested:
* shipping a libcairo2-gl which would conflicts,replaces,provides libcairo2 wouldn't work since provides are not versioned and that wouldn't satisfy the dependencies of most of binaries dependy currently on libcairo2
-> we need a new binary installable at the same time as libcairo2 and tweak ld paths
* the rules was updated to add a "gl" build flavor, it means cairo get
built without gl and and an extra time with gl
* copying the gl build library in a new directory, that would work for runtime but is not enough for builds since the .pc and the .so don't point to the right variant, building with gl also creates some new cairo-gl.pc which need to be installed
-> we need a libcairo-gl-dev binary, the binary needs to be installable at the same time than libcairo-dev due to the same reason than the library (the provides are not versioned which would mean it can't be installed as a replacement)
* installing only the extra .pc in a different path wouldn't work since that would lead to inconsistencies in the cairo installation
-> the standard path needs to be used for those .pc
* If the .pc don't point to the right directory to build with gl it
would mean wayland softwares that need cairo-gl would need hacks to
point to the right directory
* The libcairo-gobject library should build with the correct variant to
avoid have 2 different libcairo be loaded by libcairo-gobject users so
we would probably need a libcairo-gobject-gl as well
The work starts being non trivial from there and it will lead to a
solution that need hacks in softwares that want to use cairo-gl, does
anybody has a better suggestion on what to do next?
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https://bugs.launchpad.net/bugs/725434
Title:
Nvidia drivers lead to extra memory usage for each process using libGL
References