Adding files to make

[Carl Sorensen]

I'm trying to create a Fret_diagram_engraver.  To do so, I am creating
the file fret-diagram-engraver.cc.

How do I get the .cc file added to the make file?

I'm not familiar with autoconf. I have grep'ed around looking for the
names of existing engravers.  The only place I find chord-name-engraver
is in out/chord-name-engraver.dep.  I know that out/*.dep is
automatically generated during the make process.  Something must control
the process and cause out/chord-name-engraver.dep to be created, but I
have not been able to find what this thing is.

Thanks,

Carl Sorensen