+@ifhtml
+@macro contactUsAbout{topic}
+
+@divClass{heading-center}
+@divClass{contactBox}
+If you are aware of any other \topic\ which could be listed here,
+please let us know by writing a message to the bug-lilypond
+mailing list. If you're not subscribed yet you can do so on the list's
+@uref{https://lists.gnu.org/mailman/listinfo/bug-lilypond,info page}
+or post directly through the
+@uref{http://post.gmane.org/post.php?group=gmane.comp.gnu.lilypond.bugs,
+gmane lilypond.bugs web interface}.
+
+@divEnd
+@divEnd
+
+@end macro
+@end ifhtml
+
+@ifnothtml
+@macro contactUsAbout{topic}
+@cartouche
+If you are aware of any other \topic\ which could be listed here,
+please let us know by following the instructions on
+@ref{Bug reports}.
+
+@end cartouche
+
+@end macro
+@end ifnothtml
+