On 24 June 2018 at 03:22, Murray Efford wrote:
| The RcppParallel introduction at https://rcppcore.github.io/RcppParallel/
| instructs package writers to include a Makevars file with
|
| PKG_LIBS += $(shell ${R_HOME}/bin/Rscript -e
"RcppParallel::RcppParallelLibs()")
|
| However, R CMD check in R 3.5.0 generates a warning apparently because +=
| and $(shell are non-portable GNU extensions. As a Windows user I'm not
| familiar with makefiles and am not confident to work around this. Am I
| missing something, or is there a simple solution? An update to the
| introduction would be welcome.
Two things:
i) _Every_ R package which needs a Makevars _on Windows_ uses
src/Makevars.win -- see "Writing R Extensions"
ii) If one needs GNU make, one can declare the dependency in DESCRIPTION via
SystemRequirements: -- again, see "Writing R Extensions"
And we have just that:
SystemRequirements: GNU make, Windows: cmd.exe and cscript.exe, Solaris:
g++ is required
Does that answer your question? If not, did you look at user reverse-depends
of RcppParallel and examine what they do? One can often copy working
solution s from other packages...
Dirk
--
http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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