* using log directory 'd:/Rcompile/CRANpkg/local/3.6/RcppSimdJson.Rcheck'
* using R version 3.6.3 (2020-02-29)
* using platform: x86_64-w64-mingw32 (64-bit)
* using session charset: ISO8859-1
* checking for file 'RcppSimdJson/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'RcppSimdJson' version '0.1.5'
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'RcppSimdJson' can be installed ... ERROR
Installation failed.
See 'd:/Rcompile/CRANpkg/local/3.6/RcppSimdJson.Rcheck/00install.out' for details.
* DONE
The installation logfile:
* installing *source* package 'RcppSimdJson' ...
** package 'RcppSimdJson' successfully unpacked and MD5 sums checked
** using staged installation

   **********************************************
   WARNING: this package has a configure script
         It probably needs manual configuration
   **********************************************


** libs

*** arch - i386
Error in .shlib_internal(args) : 
  C++17 standard requested but CXX17 is not defined
* removing 'd:/Rcompile/CRANpkg/lib/3.6/RcppSimdJson'