[Bug 221126] devel/R-cran-data.table: missing openMP support

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221126

            Bug ID: 221126
           Summary: devel/R-cran-data.table: missing openMP support
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: tota at FreeBSD.org
          Reporter: rs.os at t-online.de
          Assignee: tota at FreeBSD.org
             Flags: maintainer-feedback?(tota at FreeBSD.org)

Hello,

thanks for providing the great data.table package as a precompiled package!

Loading the package in R results in following message:
```
data.table 1.10.4
**********
This installation of data.table has not detected OpenMP support. It will still
work but in single-threaded mode. If this a Mac and you obtained the Mac binary
of data.table from CRAN, CRAN's Mac does not yet support OpenMP. In the
meantime please follow our Mac installation instructions on the data.table
homepage. If it works and you observe benefits from multiple threads as others
have reported, please convince Simon Ubanek by sending him evidence and ask him
to turn on OpenMP support when CRAN builds package binaries for Mac.
Alternatives are to install Ubuntu on your Mac (which I have done and works
well) or use Windows where OpenMP is supported and works well.
**********
  The fastest way to learn (by data.table authors):
https://www.datacamp.com/courses/data-analysis-the-data-table-way
  Documentation: ?data.table, example(data.table) and
browseVignettes("data.table")
  Release notes, videos and slides: http://r-datatable.com

```

Per default is R compiled without OpenMP support as it would require gcc. Maybe
it is possible to provide only the data.table package with OpenMP support (gcc
is already a dependency)?

Thanks for your efforts!

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