This option compiles R with --enable-strict-barrier. Doing so is
enables extra memory diagnostics in R that very useful for debugging
memory leak or memory protections issues in extensions to R written in
C, or for any apps embedding R (e.g. Haskell aps embedding R via
HaskellR).
These packages come with R, but if we install them as part of this build, then
we cannot update them without re-building R as well. Instead, we add those
packages to the R environment through the r-wrapper. This means that
recommended packages can be updated in cran-packgaes.nix, and those updates
have an effect on the installation without re-building R itself.
There are many more packages to fix, this is just a start.
Rules:
* Don't repeat the package name (not always that easy...)
* Start with capital letter
* Don't end with full stop
* Don't start with "The ..." or "A ..."
I've also added descriptions to some packages and rewritten others.
* Ensure that R can link blas, liblapack, and libgfortran at run-time.
* Ensure that R can run the Tcl/Tk interpreter.
* Add Java support.
* Install texinfo and PDF documentation.
