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Remove obsolete CXX_STD = CXX11 to allow Armadillo 15.0.x migration#32

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Remove obsolete CXX_STD = CXX11 to allow Armadillo 15.0.x migration#32
eddelbuettel wants to merge 1 commit intoalexeckert:masterfrom
eddelbuettel:master

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@eddelbuettel
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Armadillo 15.0.* now makes C++14 the minimum compilation standard. For most packages, adapting to it can be very simple, and yours is one of them. In this PR we simply remove the declaration from the reference version of Makevars and Makevars.win as well as from DESCRIPTION -- and no other changes are needed.

Please see issues #475 and below for context, and notably #489 for this first wave of PRs. It would be terrific if you could make an upload to CRAN 'soon' to remove the reliance on C++11 which we needed in the past, but which is by now a hindrance. Please do not hesitate to reach out if I can assist in any way or clarify matters.

/cc @kurthornik

@alexeckert
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Thanks this was merged with #36 as workflow updates were needed

@alexeckert alexeckert closed this Sep 20, 2025
@eddelbuettel
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I can help you with git workflows if you want, one can also rebase, update another PR etc. I would also recommend against an Ubuntu update from focal to jammy when you could have picked noble which will help you longer.

Anyway, no hairs to split, I am very glad you made such a quick update and I look forward to seeing a new version at CRAN.

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