Can not build on Kwin 5.21

[hillwoodroc]

/mocs_compilation.cpp:7:
[ 132s] /home/abuild/rpmbuild/BUILD/ukui-kwin-274ca9a227dfbdf43625d02e054de8240740586c/build/kcmkwin/kwindecoration/declarative-plugin/kdecorationprivatedeclarative_autogen/EWIEGA46WW/../../../../../../kcmkwin/kwindecoration/declarative-plugin/previewclient.h:110:10: error: 'void KDecoration2::Preview::PreviewClient::requestShowWindowMenu()' marked 'override', but does not override
[ 132s] 110 | void requestShowWindowMenu() override;
[ 132s] | ^~~~~~~~~~~~~~~~~~~~~
[ 132s] make[2]: *** [kcmkwin/kwindecoration/declarative-plugin/CMakeFiles/kdecorationprivatedeclarative.dir/build.make:82: kcmkwin/kwindecoration/declarative-plugin/CMakeFiles/kdecorationprivatedeclarative.dir/kdecorationprivatedeclarative_autogen/mocs_compilation.cpp.o] Error 1
[ 132s] make[2]: Leaving directory '/home/abuild/rpmbuild

/BUILD/ukui-kwin-274ca9a227dfbdf43625d02e054de8240740586c/build'
[ 132s] make[1]: *** [CMakeFiles/Makefile2:2793: kcmkwin/kwindecoration/declarative-plugin/CMakeFiles/kdecorationprivatedeclarative.dir/all] Error 2
[ 132s] make[1]: *** Waiting for unfinished jobs....

[OriPoin]

我也遇到了同样的错误，请看下这次commit。
5.20.90后完善了requestShowWindowMenu函数，导致ukui-kwin在override这个函数的时候输入不一致

[OriPoin]

可以使用这个patch