[Rd] Using Rtools with gcc 4.8.3

Duncan Murdoch murdoch.duncan at gmail.com
Sun Oct 5 14:29:19 CEST 2014

On 05/10/2014, 6:20 AM, Jeroen Ooms wrote:
> I started working on some R bindings for mongo-c-driver [1]. The C
> library compiles fine on Ubuntu Trusty (gcc 4.8.2) and osx (clang),
> however on my windows machine (gcc 4.6.3 from Rtools 3.1) it fails
> with:  'INIT_ONCE_STATIC_INIT' undeclared. Google suggests that this
> might be a problem in older versions of mingw-w64. So I grabbed a copy
> of mingw-w64 version 4.8.3 and indeed, here the library compiles
> without errors.
> Now I am unsure how to make mingw 4.8.3 work with Rtools. I extracted
> the contents of [2] into "C:\RBuildTools\3.1\gcc-4.8.3\" and my
> package Makevars contains
>   CC = "c:/RBuildTools/3.1/gcc-4.8.3/bin/gcc"
> However it seems like R still uses the old gcc 4.6.3 for R CMD
> INSTALL. What am I doing wrong? Is there a recommended setup for
> building packages on Windows using a Rtools but with another compiler?

No, but I'd like to update Rtools to use the new compiler.  Have you got
some time to help with that?

Duncan Murdoch

> In addition: will I be able to publish this package to CRAN, or do I
> have to wait for Rtools to get updated with a more recent gcc?
> [1] https://github.com/mongodb/mongo-c-driver
> [2] http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/mingw-builds/4.8.3/threads-posix/dwarf/

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