[Bug 256654] x11-wm/plasma5-kwin: trim overlinking via -Wl,--as-needed

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256654

            Bug ID: 256654
           Summary: x11-wm/plasma5-kwin: trim overlinking via
                    -Wl,--as-needed
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Keywords: patch
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: kde@FreeBSD.org
          Reporter: jbeich@FreeBSD.org
          Assignee: kde@FreeBSD.org
             Flags: maintainer-feedback?(kde@FreeBSD.org)

Created attachment 225866
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=225866&action=edit
v0 (draft: direct LDFLAGS, _DEPENDS not adjusted)

-Wl,--as-needed is opt-out in Meson (-Db_asneeded=false) but opt-in CMake
(-DCMAKE_LINK_WHAT_YOU_USE=ON). When subpackaging (review D16457) arrives
kwin_x11 and kwin_wayland can be in separate packages but for now
-Wl,--as-needed shaves unused libraries.

--- kwin_x11    before
+++ kwin_x11    after
@@ -1,63 +1,17 @@
  0x0000000000000001 NEEDED               Shared library: [libkwin.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libkwin4_effect_builtins.so.1]
- 0x0000000000000001 NEEDED               Shared library:
[libkwineffects.so.13]
- 0x0000000000000001 NEEDED               Shared library:
[libkwinglutils.so.13]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5GlobalAccelPrivate.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libKF5Plasma.so.5]
  0x0000000000000001 NEEDED               Shared library:
[libKF5QuickAddons.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libQt5Quick.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libQt5QmlModels.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libQt5Qml.so.5]
  0x0000000000000001 NEEDED               Shared library: [libKF5Crash.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libKF5Service.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5WaylandClient.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libkdecorations2.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libkdecorations2private.so.8]
- 0x0000000000000001 NEEDED               Shared library:
[libKScreenLocker.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5Notifications.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libKF5Package.so.5]
  0x0000000000000001 NEEDED               Shared library:
[libKF5WindowSystem.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5GlobalAccel.so.5]
  0x0000000000000001 NEEDED               Shared library:
[libQt5X11Extras.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5ConfigWidgets.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libKF5Codecs.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5ConfigGui.so.5]
  0x0000000000000001 NEEDED               Shared library:
[libKF5ConfigCore.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libQt5Xml.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libKF5Auth.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libKF5AuthCore.so.5]
  0x0000000000000001 NEEDED               Shared library:
[libKF5CoreAddons.so.5]
  0x0000000000000001 NEEDED               Shared library: [libKF5I18n.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5WidgetsAddons.so.5]
  0x0000000000000001 NEEDED               Shared library: [libQt5Widgets.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libQt5Network.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libQt5Concurrent.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libKWaylandServer.so.5]
- 0x0000000000000001 NEEDED               Shared library:
[libwayland-server.so.0]
- 0x0000000000000001 NEEDED               Shared library:
[libxcb-composite.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-damage.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-glx.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-icccm.so.4]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-keysyms.so.1]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-randr.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-shm.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-sync.so.1]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-xfixes.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-render.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxcb-shape.so.0]
  0x0000000000000001 NEEDED               Shared library: [libxcb.so.1]
- 0x0000000000000001 NEEDED               Shared library: [libinput.so.10]
- 0x0000000000000001 NEEDED               Shared library: [libudev.so.0]
- 0x0000000000000001 NEEDED               Shared library: [libxkbcommon.so.0]
  0x0000000000000001 NEEDED               Shared library: [libQt5Gui.so.5]
  0x0000000000000001 NEEDED               Shared library: [libQt5Core.so.5]
- 0x0000000000000001 NEEDED               Shared library: [libGL.so.1]
- 0x0000000000000001 NEEDED               Shared library: [libepoxy.so.0]
- 0x0000000000000001 NEEDED               Shared library: [liblcms2.so.2]
- 0x0000000000000001 NEEDED               Shared library:
[libKF5Activities.so.5]
  0x0000000000000001 NEEDED               Shared library: [libQt5DBus.so.5]
  0x0000000000000001 NEEDED               Shared library: [libc++.so.1]
  0x0000000000000001 NEEDED               Shared library: [libcxxrt.so.1]
- 0x0000000000000001 NEEDED               Shared library: [libm.so.5]
  0x0000000000000001 NEEDED               Shared library: [libthr.so.3]
  0x0000000000000001 NEEDED               Shared library: [libc.so.7]

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