$ dpkg -l|grep g++
ii g++ 4:9.2.1-3.1ubuntu1 amd64 GNU C++ compiler
ii g++-9 9.2.1-9ubuntu2 amd64 GNU C++ compiler
$ dpkg -l|grep extra-cmake-modules
ii extra-cmake-modules 5.67.0-0ubuntu1~ubuntu19.10~ppa1 amd64 Extra modules and scripts for CMake
$ dpkg -l|grep qtbase5-dev
ii qtbase5-dev:amd64 5.12.4+dfsg-4ubuntu1.1 amd64 Qt 5 base development files
ii qtbase5-dev-tools 5.12.4+dfsg-4ubuntu1.1 amd64 Qt 5 base development programs
$ dpkg -l|grep qtdeclarative5-dev
ii qtdeclarative5-dev:amd64 5.12.4-1 amd64 Qt 5 declarative development files
ii qtdeclarative5-dev-tools 5.12.4-1 amd64 Qt 5 declarative development programs
dpkg -l|grep libkf5declarative-dev
ii libkf5declarative-dev 5.67.0-0ubuntu1~ubuntu19.10~ppa1 amd64 development files for kdeclarative
$ dpkg -l|grep libkf5plasma-dev
ii libkf5plasma-dev 5.67.0-0ubuntu1~ubuntu19.10~ppa2 amd64 development files for plasma-framework
$ dpkg -l|grep libkdecorations2-dev
ii libkdecorations2-dev 4:5.18.0-0ubuntu1~ubuntu19.10~ppa1 amd64 library to create window decorations - development files
$ dpkg -l|grep gettext
ii gettext 0.19.8.1-9 amd64 GNU Internationalization utilities
ii gettext-base 0.19.8.1-9 amd64 GNU Internationalization utilities for the base system
Build error:
$ ./install.sh
-- Found KF5: success (found suitable version "5.67.0", minimum required is "5.38.0") found components: CoreAddons Declarative Plasma PlasmaQuick
-- KDECORATION2 VERSION MINOR : 18
-- Could not set up the appstream test. appstreamcli is missing.
-- Found KF5: success (found suitable version "5.67.0", minimum required is "5.26.0") found components: Plasma WindowSystem I18n Service ConfigWidgets
-- Configuring done
-- Generating done
-- Build files have been written to: /home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/build
[ 9%] Automatic MOC for target appletdecorationplugin
[ 9%] Built target appletdecorationplugin_autogen
[ 9%] Building CXX object libappletdecoration/CMakeFiles/appletdecorationplugin.dir/previewbridge.cpp.o
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp: In member function ‘virtual std::unique_ptr<KDecoration2::DecoratedClientPrivate> Decoration::Applet::PreviewBridge::createClient(KDecoration2::DecoratedClient*, KDecoration2::Decoration*)’:
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:75:83: error: invalid new-expression of abstract class type ‘Decoration::Applet::PreviewClient’
75 | auto ptr = std::unique_ptr<PreviewClient>(new PreviewClient(client, decoration));
| ^
In file included from /home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:27:
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewclient.h:40:7: note: because the following virtual functions are pure within ‘Decoration::Applet::PreviewClient’:
40 | class PreviewClient : public QObject, public KDecoration2::ApplicationMenuEnabledDecoratedClientPrivate
| ^~~~~~~~~~~~~
In file included from /usr/include/KDecoration2/KDecoration2/Private/DecoratedClientPrivate:1,
from /home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewclient.h:31,
from /home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:27:
/usr/include/KDecoration2/kdecoration2/private/decoratedclientprivate.h:76:19: note: ‘virtual QSize KDecoration2::DecoratedClientPrivate::size() const’
76 | virtual QSize size() const = 0;
| ^~~~
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp: In member function ‘virtual std::unique_ptr<KDecoration2::DecorationSettingsPrivate> Decoration::Applet::PreviewBridge::settings(KDecoration2::DecorationSettings*)’:
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:97:21: warning: redundant move in return statement [-Wredundant-move]
97 | return std::move(ptr);
| ~~~~~~~~~^~~~~
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:97:21: note: remove ‘std::move’ call
make[2]: *** [libappletdecoration/CMakeFiles/appletdecorationplugin.dir/build.make:180: libappletdecoration/CMakeFiles/appletdecorationplugin.dir/previewbridge.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:481: libappletdecoration/CMakeFiles/appletdecorationplugin.dir/all] Error 2
make: *** [Makefile:141: all] Error 2
[ 4%] Automatic MOC for target appletdecorationplugin
[ 4%] Built target appletdecorationplugin_autogen
[ 9%] Building CXX object libappletdecoration/CMakeFiles/appletdecorationplugin.dir/previewbridge.cpp.o
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp: In member function ‘virtual std::unique_ptr<KDecoration2::DecoratedClientPrivate> Decoration::Applet::PreviewBridge::createClient(KDecoration2::DecoratedClient*, KDecoration2::Decoration*)’:
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:75:83: error: invalid new-expression of abstract class type ‘Decoration::Applet::PreviewClient’
75 | auto ptr = std::unique_ptr<PreviewClient>(new PreviewClient(client, decoration));
| ^
In file included from /home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:27:
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewclient.h:40:7: note: because the following virtual functions are pure within ‘Decoration::Applet::PreviewClient’:
40 | class PreviewClient : public QObject, public KDecoration2::ApplicationMenuEnabledDecoratedClientPrivate
| ^~~~~~~~~~~~~
In file included from /usr/include/KDecoration2/KDecoration2/Private/DecoratedClientPrivate:1,
from /home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewclient.h:31,
from /home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:27:
/usr/include/KDecoration2/kdecoration2/private/decoratedclientprivate.h:76:19: note: ‘virtual QSize KDecoration2::DecoratedClientPrivate::size() const’
76 | virtual QSize size() const = 0;
| ^~~~
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp: In member function ‘virtual std::unique_ptr<KDecoration2::DecorationSettingsPrivate> Decoration::Applet::PreviewBridge::settings(KDecoration2::DecorationSettings*)’:
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:97:21: warning: redundant move in return statement [-Wredundant-move]
97 | return std::move(ptr);
| ~~~~~~~~~^~~~~
/home/nixway/.src/window-buttons/0.8/plasma-applet-window-buttons-0.8.0/libappletdecoration/previewbridge.cpp:97:21: note: remove ‘std::move’ call
make[2]: *** [libappletdecoration/CMakeFiles/appletdecorationplugin.dir/build.make:180: libappletdecoration/CMakeFiles/appletdecorationplugin.dir/previewbridge.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:481: libappletdecoration/CMakeFiles/appletdecorationplugin.dir/all] Error 2
make: *** [Makefile:141: all] Error 2
OS: Kubuntu 19.10 + KDE Plasma 5.18 (Kubuntu Backports PPA) Deppends:
Build error: