Slackware current: SlackBuild ( ponce ) vala-panel-appemenu failed

Hiya,

I've had some issues to build bamf, but the problem is solved now.

https://bugs.debian.org/cgi-bin/bugr...cgi?bug=940164

Next, I need some help to build the vala-panel-appemenu Slackbuild.

Code:[ 40%] Built target appmenu-gtk3-module
[ 43%] Generating item.c;proxy.c;client.c;property-store.c;gtk/client.c;gtk/main-item.c;gtk/separator-item.c;gtk/item-iface.c;gtk/scale-item.c;vala-dbusmenu.vapi;vala-dbusmenu.h
gio-addons-2.0.vapi:24.9-24.38: error: `GLib.SignalHandler' already contains a definition for `disconnect_by_data'
public void disconnect_by_data(Object instance, void* data);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
gobject-2.0.vapi:40.3-40.39: note: previous definition of `disconnect_by_data' was here
public static uint disconnect_by_data (void* instance, void* data);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Command-line option `--thread` is deprecated and will be ignored
Compilation failed: 1 error(s), 0 warning(s)
make[2]: *** [dbusmenu/CMakeFiles/vala-dbusmenu-o.dir/build.make:103: dbusmenu/vala-dbusmenu_valac.stamp] Error 1
make[1]: *** [CMakeFiles/Makefile2:654: dbusmenu/CMakeFiles/vala-dbusmenu-o.dir/all] Error 2
make: *** [Makefile:163: all] Error 2

vala-panel-appmenu:
Would you like to continue processing the rest of the
queue or would you like to abort? If this failed
package is a dependency of another package in the queue
then it may not make sense to continue.

(Y)es to continue, (N)o to abort, (R)etry the build?:Thanks Lancs