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Remove obsolete CXX_STD = CXX11 to allow Armadillo 15.0.x migration#3

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Remove obsolete CXX_STD = CXX11 to allow Armadillo 15.0.x migration#3
eddelbuettel wants to merge 1 commit intokisungyou:masterfrom
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@eddelbuettel
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@eddelbuettel eddelbuettel commented Sep 20, 2025

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 -- and no other changes are needed. (There is a minor warning on unused variables under -Wunused-variable you could address but that is more cosmetic.)

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

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dealt with added changes;

@kisungyou kisungyou closed this Sep 21, 2025
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