Information to compile packages

From a discussion in 

 I am attempting to build my package using devtools::build I have verified

that both Rcpp and RcppArmadillo are working properly.

However, when I build, I get the following error message

 Error: package or namespace load failed for ‘HACSim’ in dyn.load(file,

DLLpath = DLLpath, ...):

    unable to load shared object

'/private/var/folders/wv/4_z4h7ns57g7qvd600qgd__w0000gn/T/RtmpGe2Cqt/Rinst118e1e9f13a0/00LOCK-HACSim/00new/HACSim/libs/HACSim.so':

 dlopen(/private/var/folders/wv/4_z4h7ns57g7qvd600qgd__w0000gn/T/RtmpGe2Cqt/Rinst118e1e9f13a0/00LOCK-HACSim/00new/HACSim/libs/HACSim.so,

6): Symbol not found: ___addtf3

     Referenced from: /usr/local/lib/libquadmath.0.dylib

     Expected in: /usr/local/lib/libgcc_s_x86_64.1.dylib

    in /usr/local/lib/libquadmath.0.dylib

   Error: loading failed

   Execution halted

   ERROR: loading failed

─  removing

‘/private/var/folders/wv/4_z4h7ns57g7qvd600qgd__w0000gn/T/RtmpGe2Cqt/Rinst118e1e9f13a0/HACSim’

         -----------------------------------

   ERROR: package installation failed

Error in (function (command = NULL, args = character(), error_on_status =

TRUE,  :

  System command 'R' failed, exit status: 1, stdout + stderr (last 10

lines):

E>

dlopen(/private/var/folders/wv/4_z4h7ns57g7qvd600qgd__w0000gn/T/RtmpGe2Cqt/Rinst118e1e9f13a0/00LOCK-HACSim/00new/HACSim/libs/HACSim.so,

6): Symbol not found: ___addtf3

E>   Referenced from: /usr/local/lib/libquadmath.0.dylib

E>   Expected in: /usr/local/lib/libgcc_s_x86_64.1.dylib

E>  in /usr/local/lib/libquadmath.0.dylib

E> Error: loading failed

E> Execution halted

E> ERROR: loading failed

E> * removing

‘/private/var/folders/wv/4_z4h7ns57g7qvd600qgd__w0000gn/T/RtmpGe2Cqt/Rinst118e1e9f13a0/HACSim’

E>       -----------------------------------

E> ERROR: package installation failed

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Answers

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you seem to have some ancient compilers in /usr/local. In order to avoid issue, I would strongly recommend removing the content of /usr/local (or putting it aside - see below). You don't need any extra tools on Big Sur, only standard Apple Xcode or CLT are needed (see R documentation).

Also please note that your github repository (https://github.com/jphill01/HACSim.R) has binary files checked in which is a bad idea, so you may want to fix that problem first.

Cheers,

Simon

to remove all files from /usr/local:

sudo rm -rf /usr/local/*

to put them aside:

sudo -i

cd /usr/local

mkdir .bak

mv * .bak/

to restore  if needed:

sudo -i

cd /usr/local

mv .bak/* .

rmdir .bak

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Answer 2

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> you seem to have some ancient compilers in /usr/local. In order to avoid issue, I would strongly recommend removing the content of /usr/local (or putting it aside - see below). You don't need any extra tools on Big Sur, only standard Apple Xcode or CLT are needed (see R documentation).

Unless you need to compile Fortran code ... on x86_64 the manuals recommend installing gfortran in /usr/local/gfortran and using a complete path.

For some packages you need other tools such as pkg-config, and the Tcl/Tk support code is installed under /usr/local (as are some symlinks).  So I would nuance Simon's suggestion by adding that you should re-install R (preferably 4.1.2) once /usr/local/* has been moved aside.