[Bioc-devel] library checking: question on require/depends

[Sean Davis]

On Tue, Jul 29, 2008 at 1:51 PM, mattia pelizzola
<mattia.pelizzola at gmail.com> wrote:
> Hi,
>
> I'm working on a new package. The 'build' is ok, but when running
> 'check' I get a warning that I'm not sure on how to eliminate it.
> The warning is :
>
> * checking for unstated dependencies in R code ... WARNING
> 'library' or 'require' calls not declared from:
>  BSgenome.Hsapiens.UCSC.hg17 BSgenome.Hsapiens.UCSC.hg18
>
> The reason of course is that I'm using the require function and I'm
> not adding these libraries in 'Depends' or 'Suggests'. The point is
> that I would not like to oblige users to install both hg17 and hg18
> libraries, since they are huge (800Mb). This is going to be even more
> important if I would support many other annotation libraries. The idea
> was then to use require to load only the one requested from the user
> (either hg17 or hg18).
>
> I'm going to submit this library to Bioconductor. Can I ignore this
> warning, should I add all the annotation libraries in 'Depends', or is
> there another way to fix this warning?

This is what "Suggests" is for.

Sean