x11-wm/plasma5-kwin: add option PIPEWIRE to allow build without pipewire

[vvd]

Summary

Add option PIPEWIRE to allow build without pipewire.
Default ON - same as was before.

Tested on 13.2 amd64 in poudriere and live system.

P.S. Without patches it build and work fine if pipewire is not installed in system.

[vvd]

ping

[arrowd]

Can't this be done via CMAKE_DISABLE_FIND_PACKAGE... too?

[vvd]

In D41863#959445, @arrowd wrote:

Can't this be done via CMAKE_DISABLE_FIND_PACKAGE... too?

Tried:

PEWIRE_CMAKE_BOOL_OFF= CMAKE_DISABLE_FIND_PACKAGE_PipeWire CMAKE_DISABLE_FIND_PACKAGE_libpipewire CMAKE_DISABLE_FIND_PACKAGE_libpipewire-0.3

But it still search libpipewire during make configure:

-- Checking for module 'libpipewire-0.3>=0.3.29'
--   Package 'libpipewire-0.3', required by 'virtual:world', not found

So plasma5-kwin will grab libpipewire silently during build if it installed even if user turn off option PIPEWIRE.

[arrowd]

Does just passing -DPipeWire_FOUND=NO to CMake work?

[vvd]

In D41863#964975, @arrowd wrote:

Does just passing -DPipeWire_FOUND=NO to CMake work?

Added:
CMAKE_ARGS= -DPipeWire_FOUND=NO
make configure:

<cut>
-- Checking for module 'libpipewire-0.3>=0.3.29'
--   Package 'libpipewire-0.3', required by 'virtual:world', not found
<cut>
-- The following features have been disabled:

 * SCHED_RESET_ON_FORK, Required for running kwin_wayland with real-time scheduling
 * PipeWire, Required for Wayland screencasting
<cut>

[vvd]

ping

[arrowd]

If the -DPipeWire_FOUND=NO approach worked, update the diff

[vvd]

In D41863#982973, @arrowd wrote:

If the -DPipeWire_FOUND=NO approach worked, update the diff

Not worked - it still search for pipewire and grab it silently if find.

Patch for CMakeLists.txt is for prevent silently grab pipewire if in installed, but user don't want use it (turned off option PIPEWIRE).