Requires g++ 4.6 about rcpparmadillo HOT 16 CLOSED

Indeed, the latest versions of armadillo + RcppArmadillo require a newer compiler, hence the configure warnings.

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Error, actually -- see here.

No point having a warning only to have the compilation die a minute later. This is a hard requirement (from upstream).

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You may need to alk to the NetDiff maintainers. Maybe you can just edit out the requirement from their DESCRIPTION. Not our package.

But a current (Rcpp)Armadillo requires a new-enough compiler. And g++ 4.4.6 on ancient RHEL or CentOs does not work. Sorry.

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[ The first name is 'Dirk' ]

That message does not come from us; I suspect you may just have used configure the wrong way.

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Why do you open an issue?

You need to install an older version of RcppArmadillo that is appropriately dated for your compiler. And you did. So what more is there to say, really?

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Any advice on which version to install?
https://cran.r-project.org/src/contrib/Archive/RcppArmadillo/

I am not quite sure on an efficient way to discover an old version compatible with a specific compiler.

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To a first approximation follow the Armadillo majors, so try the last 6.* release: 0.6.700.6.0. Then 0.5.600.2.0 and so on.

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Thanks. Picked Dec because holidays! Seems sufficient (wanted latest
Forecast package). Sorry for the hassle I should have tried a few before
posting.

On Mon, Aug 1, 2016 at 3:23 PM, Dirk Eddelbuettel [email protected]
wrote:

To a first approximation follow the Armadillo majors, so try the last 6.*
release: 0.6.700.6.0. Then 0.5.600.2.0 and so on.

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Hi, sorry to comment on this issue, but I cann't solve my question.

I have successfully installed latest Rcpp version 0.12.8 and RcppArmadillo version 0.6.100.0.0 with g++ 4.4.6, using the command "R CMD INSTALL".
But one of my wanted package "NetDiff" (https://gitlab.com/tt104/NetDiff) need the latest RcppArmadillo version 0.7.600.1.0. However, when I add the g++ version 4.9.2, I got the following error message:

checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... configure: error: in `/tmp/Rtmp5LKNdB/R.INSTALL6ffa4a2cc4a4/RcppArmadillo':
configure: error: cannot run C++ compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details
ERROR: configuration failed for package 'RcppArmadillo'

Is it possible to compile RcppArmadillo_0.7.600.1.0 with g++ 4.9.2 when I have compiled other package with g++ 4.4.6?

Thanks a lot and Happy New Year!
Pengcheng Yang

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Hi Eddelbuettel,

Thank you for your reply.

I have noticed that the error message says: "If you meant to cross compile, use `--host'." So, I wander if it possible compile RcppArmadillo_0.7.600.1.0 using "cross compile with --host". I have uncompressed the package, but don't know how to do "cross compile use --host".

Anyway, I will try to edit the DESCRIPTION file of NetDiff to use the older version of RcppArmadillo.

Thanks!

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Hi Dirk,

The installation was performed using the command "R CMD INSTALL", so I don't know how to configure, such as add "--host" parameter, when installing the R package. OK, I will search how to do this work.

I have contacted with the NetDiff maintainer. Thank you!

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I wanted to let everyone that I have installed version 0.5 RcppArmadillo to compile the forecast package successfully. No need to get a new GCC :)

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Hello majaidi, what are the steps you followed to install version 0.5 of RcppArmadillo without updating GCC ?

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Go to the archive page for RcppArmadillo and download the desired version. You can use the archive file stamp along with the NEWS file to guide. Download the tarball, install locally from source as usual.

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This is old, but FWIW, I was able to figure out which version of RcppArmadillo to get by checking which version of ubuntu was shipped with my version of g++ (v4.6). Trusty came out in April 2014, so I downloaded a version of RcppArmadillo from early 2014 (v0.4). It worked.

Any advice on which version to install?
https://cran.r-project.org/src/contrib/Archive/RcppArmadillo/

I am not quite sure on an efficient way to discover an old version compatible with a specific compiler.

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Even easier: install the r-cran-rcpparmadillo that came with your version of Ubuntu if you prefer to (or are forced to) run outdated code.

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