Michael, I don't think there's anything about your library that suggests a dynamic dependency; as a user, I would be more surprised by a long pause for a planet install during operation than by a slightly longer installation when I first download the package. I suggest you require the rsound package directly, and either split your package in two to reduce dependencies or just live with a possibly unnecessary dependency. I guess it depends on whether clements/rsound is significantly bigger or slower to install than your package or not. Personally, as a Planet user, if I downloaded an Ogg Vorbis library, I would not begrudge it a dependency on an extra sound library for potential conversions. Carl Eastlund <div class="gmail_quote">On Fri, Jan 27, 2012 at 8:47 PM, Michael W <<a href="mailto:mwilber@uccs.edu">mwilber@uccs.edu</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hello everyone! I'm making an Ogg Vorbis library for racket, and it's convenient to also be able to convert Ogg files to rsounds for (planet clements/rsound). To this end, I have an rsound-compat module in my package. Not everyone who uses my package will want to pull down (planet clements/rsound) as a dependency when they install my package, but they might want it when they use rsound-compat. Is there a way of asking a planet _not_ to pull down that dependency when users install this package, but _do_ install that dependency when they try to use rsound-compat? Or should I just bite the bullet and split rsound-compat into its own mini-planet package? As a workaround, I have this at the top of my rsound-compat module, which is just enough to trick raco make but I feel icky after typing it: (define mono-signal->rsound (dynamic-require '(planet clements/rsound) 'mono-signal->rsound)) (define signals->rsound (dynamic-require '(planet clements/rsound) 'signals->rsound)) (define s16max/i (dynamic-require '(planet clements/rsound) 's16max/i)) (define default-sample-rate (dynamic-require '(planet clements/rsound) 'default-sample-rate)) ;; And whatever other bindings I need Is this the preferred way of doing it? Am I missing something obvious? Does such abuse go against PLaneT's philosophy or something? -- Reclined in a defunct and truly obese satellite dish, _mike ____________________ Racket Users list: <a href="http://lists.racket-lang.org/users" target="_blank">http://lists.racket-lang.org/users</a> </blockquote></div>