Is xfce4-alsa-plugin broken with panel 4.15?

[Jose Luis]

As said in the subject I try to compile the alsa plugin and it won't 
compile with this error.

<---

+ ninja -C build install
ninja: Entering directory `build'
[2/10] Compiling Vala source ../src/alsamanager.vala 
../src/set...ton.vala ../src/volumepopup.vala ../src/xfce4-alsa-plugin.vala.
FAILED: alsa at sha/src/alsamanager.c alsa at sha/src/settings.c 
alsa at sha/src/settingsdialog.c alsa at sha/src/volumebutton.c 
alsa at sha/src/volumepopup.c alsa at sha/src/xfce4-alsa-plugin.c alsa.h 
alsa.vapi
valac -C --debug --debug --vapidir 
/home/pkgmk/work/xfce4-alsa-plugin/src/xfce4-alsa-plugin-0.2.1/src/vapi 
--define=GTK3 --define=XFCE4_13 --pkg gtk+-3.0 --pkg libxfce4panel-2.0 
/home/pkgmk/work/xfce4-alsa-plugin/src/xfce4-alsa-plugin-0.2.1/src/vapi/config.vapi 
/home/pkgmk/work/xfce4-alsa-plugin/src/xfce4-alsa-plugin-0.2.1/src/vapi/gdkkeysyms-2.0.vapi 
--pkg alsa --color=always --directory alsa at sha --basedir ../ --library 
alsa --header alsa.h --vapi ../alsa.vapi ../src/alsamanager.vala 
../src/settings.vala ../src/settingsdialog.vala ../src/volumebutton.vala 
../src/volumepopup.vala ../src/xfce4-alsa-plugin.vala
libxfce4panel-2.0.vapi:124.3-124.41: error: overriding method 
`Xfce.PanelPlugin.remote_event' is incompatible with base method `bool 
Xfce.PanelPluginProvider.remote_event (string, GLib.Value, uint)': too 
few parameters.
         public virtual signal bool remote_event (string name, 
GLib.Value value);
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Compilation failed: 1 error(s), 0 warning(s)
ninja: build stopped: subcommand failed.
--->

I think the error is for xfcpanel.

Anyone knows?

Thanks!

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