D24465: Use ECMGenerateExportHeader to manage deprecated API better

[Friedrich W. H. Kossebau]

kossebau created this revision.
kossebau added reviewers: Frameworks, KWin, dfaure, zzag.
Herald added a project: Frameworks.
Herald added a subscriber: kde-frameworks-devel.
kossebau requested review of this revision.

REVISION SUMMARY
  Allows
  
  - projects linking to KWindowSystem to hide deprecated API up to a given version or silence deprecation warnings after a given version, using
    - -DKWINDOWSYSTEM_DISABLE_DEPRECATED_BEFORE_AND_AT
    - -DKWINDOWSYSTEM_NO_DEPRECATED
    - -DKWINDOWSYSTEM_DEPRECATED_WARNINGS_SINCE
    - -DKWINDOWSYSTEM_NO_DEPRECATED_WARNINGS
  
      or
    - -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT
    - -DKF_NO_DEPRECATED
    - -DKF_DEPRECATED_WARNINGS_SINCE
    - -DKF_NO_DEPRECATED_WARNINGS
  - to build KWindowSystem optionally with deprecated API excluded from the build, using "EXCLUDE_DEPRECATED_BEFORE_AND_AT" cmake argument.
  
  Setting KWINDOWSYSTEM_NO_WIDGETS ensures EXCLUDE_DEPRECATED_BEFORE_AND_AT
  is at least at the version where QWidgets API was deprecated.

TEST PLAN
  Builds with EXCLUDE_DEPRECATED_BEFORE_AND_AT set to 0, 5.0.0, 5.18.0,
  5.38.0, 5.62.0, CURRENT as well as KWINDOWSYSTEM_NO_WIDGETS ON/OFF

REPOSITORY
  R278 KWindowSystem

BRANCH
  useECMGenerateExportHeader

REVISION DETAIL
  https://phabricator.kde.org/D24465

AFFECTED FILES
  CMakeLists.txt
  autotests/kstartupinfo_unittest.cpp
  autotests/kwindowinfox11test.cpp
  autotests/kwindowsystemx11test.cpp
  autotests/kxmessages_unittest.cpp
  autotests/netwininfotestclient.cpp
  src/CMakeLists.txt
  src/kstartupinfo.cpp
  src/kstartupinfo.h
  src/kwindoweffects.cpp
  src/kwindoweffects.h
  src/kwindowsystem.cpp
  src/kwindowsystem.h
  src/kwindowsystem_dummy_p.h
  src/kwindowsystem_p.h
  src/netwm_def.h
  src/platforms/osx/kwindowsystem.cpp
  src/platforms/wayland/kwindowsystem.cpp
  src/platforms/wayland/kwindowsystem_p_wayland.h
  src/platforms/windows/kwindowsystem.cpp
  src/platforms/xcb/kkeyserver.cpp
  src/platforms/xcb/kkeyserver_x11.h
  src/platforms/xcb/kwindowsystem.cpp
  src/platforms/xcb/kwindowsystem_p_x11.h
  src/platforms/xcb/kxmessages.cpp
  src/platforms/xcb/kxmessages.h
  src/platforms/xcb/netwm.cpp
  src/platforms/xcb/netwm.h

To: kossebau, #frameworks, #kwin, dfaure, zzag
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns
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