[Going through some old and from what I see unanswered messages
No, you cannot have a cycle in Imports / Depends / LinkingTo
otherwise you will run into an "the chicken or the egg" problem:
That declaration means that the other packages must be loadable on
installation, for example.
You can try to declare "Depends" in one and to use "Suggests" in the one
with less strong dependencies. If the dependency is too strong: Why not
merge these essential parts of the functionality that depend on each
other into one package?
Best wishes,
Uwe Ligges
Joerg van den Hoff wrote:
I get the error
Error : evaluation nested too deeply: infinite recursion /
options(expressions=)?
during a 'R CMD check ...'
on one of my packages. The reason seems to be that this package is
mutually dependent on another one (i.e. the DESCRIPTION files of package
A lists package B under "Depends" and vice versa). this might be bad
design (having bits in both packages needed by the other), but I believe
prior to R 2.9. this did not cause trouble. now the log file of the
'check' is something like
Installing *source* package 'roiutils' ...
** R
** exec
** preparing package for lazy loading
Loading required package: roiutils
Loading required package: fzrutils
=======================CUT (many more of the same) ========================
Loading required package: roiutils
Loading required package: fzrutils
Loading required package: roiutils
Error : evaluation nested too deeply: infinite recursion /
options(expressions=)?
i.e. it seems that R loads both packages again and again.
what am I missing/doing wrong?
thanks in advance
joerg
PS:
platform powerpc-apple-darwin8.11.1
arch powerpc
os darwin8.11.1
system powerpc, darwin8.11.1
status
major 2
minor 9.2
year 2009
month 08
day 24
svn rev 49384
language R
version.string R version 2.9.2 (2009-08-24)
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