Comment 2 for bug 1730947

doesn't work, the build then fails with

In file included from /usr/include/alsa/asoundlib.h:56:0,
                 from /home/ubuntu/libscan/failed-cairo-dock-plug-ins/cairo-dock-plug-ins-3.4.1/alsaMixer/src/applet-struct.h:24,
                 from /home/ubuntu/libscan/failed-cairo-dock-plug-ins/cairo-dock-plug-ins-3.4.1/alsaMixer/src/applet-init.c:20:
/usr/include/alsa/timer.h:108:19: error: field 'tstamp' has incomplete type
  snd_htimestamp_t tstamp; /**< Time stamp of each event */
                   ^~~~~~
alsaMixer/src/CMakeFiles/cd-AlsaMixer.dir/build.make:65: recipe for target 'alsaMixer/src/CMakeFiles/cd-AlsaMixer.dir/applet-init.c.o' failed
make[3]: *** [alsaMixer/src/CMakeFiles/cd-AlsaMixer.dir/applet-init.c.o] Error 1