[R-pkg-devel] C++11 requirements for package dependencies
I think that C++11 isn't a requirement of RcppArmadillo, it's an option that is used if available. (Assuming you are using the CRAN version, not an experimental/devel version.) A user of the header file can include #define ARMA_USE_CXX11 which would make it a system requirement of whatever package did that, even though it isn't a system requirement for RcppArmadillo. But I could be wrong about this... Duncan Murdoch
On 30/11/2020 11:06 a.m., Mark Clements wrote:
[Apologies for cross-posting] A colleague uses a package I maintain (rstpm2) as a dependency in their package (rsimsum) with testing using GitHub Actions. They found that testing failed against R versions 3.3, 3.4 and 3.5 because recent versions of RcppArmadillo (which is a dependency in rstpm2) require C++11. As a dependency diagram: rsimsum --> rstpm2 --> RcppArmadillo Should I update rstpm2 to include "CXX_STD = CXX11" in the Makevars and Makevars.win files and add "SystemRequirements: C++11" to the DESCRIPTION, or is there a simple way in GitHub Actions to use C++11 for older versions of R? Moreover, as a principle, should a package need to change the Makevars and DESCRIPTION files to suit the most recent updates of their dependencies? I would have thought that such a need would break many packages. Sincerely, Mark. N?r du skickar e-post till Karolinska Institutet (KI) inneb?r detta att KI kommer att behandla dina personuppgifter. H?r finns information om hur KI behandlar personuppgifter<https://ki.se/medarbetare/integritetsskyddspolicy>. Sending email to Karolinska Institutet (KI) will result in KI processing your personal data. You can read more about KI?s processing of personal data here<https://ki.se/en/staff/data-protection-policy>.
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