[R-pkg-devel] Warning: replacing previous import ...

Dear list,

I'm maintainer of the fpc package and got an email that I need to 
replace a warning that has come up. The warning is:

"Warning: replacing previous import ?mclust::dmvnorm? by 
?mvtnorm::dmvnorm? when loading ?fpc?"

Back story: A few month ago I was contacted by the maintainer of mclust 
that they now incorporate their own dmvnorm function. As dmvnorm is used 
in my package, he suggested to replace all dmvnorm by mvtnorm::dmvnorm, 
which I did. Initially this was accepted without warning by CRAN.

I don't really understand what I should do about the warning. Isn't 
mvtnorm::dmvnorm the way to do this, if I want to go on using mvtnorm's 
dmvnorm function? All "dmvnorm" occurrences in my package are now 
mvtnorm::dmvnorm as intended and requested. Both mclust and mvtnorm are 
imported. The only (probably somewhat stupid) idea I have is to list the 
import of? mvtnorm before mclust in NAMESPACE (currently mclust is 
imported forst), but this seems silly to me - what if I wanted to use 
both mvtnorm::dmvnorm and mclust::dmvnorm?

Any hint?

Thanks,

Christian