![]() Test that the tools are available by running which make gcc pdflatex tar Set environment variables as follows (update the MiKTeX installation directory in the commands below if needed, this one is “non-standard” from an automated installation described later below): export PATH=/x86_/bin:$PATHĮxport PATH=/c/Program\ Files/MiKTeX/miktex/bin/圆4:$PATH To automatically download always the current/latest version of the Tcl bundle, one can do e.g. this: wget -np -nd -r -l1 -A 'tcltk-*.zip' Īnd a similar trick can be used to obtain other files that always exist but and have changing version names. C:\Users\username).Īs a next step to install R from source, download and unpack the Tcl/Tk bundle from here, a file named such as tcltk-4983-4987.zip, then download the R sources. Like Rtools4, but unlike Msys2 default, the home directory in bash is the user profile (e.g. One should only be installing packages from “msys” sub-repository of Msys2, mixing other sub-repositories with the toolchain may cause trouble. List all available packages (not necessarily installed) using pacman -Sl. a package providing file unzip.exe by pacman -F unzip.exe. Install an index of available files using pacman -Fy and then get e.g. ![]() These pacman commands may also be useful: Run the Msys2 shell, update the Msys2 part and install two more package: pacman -Syuu One may also install additional Msys2 software using pacman, e.g. additional build tools. Building R from source using Rtools42Īs with Rtools4, one may run the Msys2 shell (“Rtools bash” from the startup menu, or run c:/rtools42/msys2.exe and run R from there). UCRT allows UTF-8 to be used as the native encoding. It is not possible to use static libraries compiled by previous versions of Rtools, which were built for MSVCRT, an older C runtime for Windows. R 4.2 on Windows uses UCRT as the C runtime and all native code is built for this runtime. No setting of PATH is necessary, Rtools42 will be found automatically by R. One can run the package check also from command-line, e.g. cmd.exe, as usual. Tools::Rcmd("check tiff_0.") # update file name as needed Which will build from source PKI and its dependency base64enc.Īs a harder and longer test, let’s try installing RcppCWB from github.įirst, install devtools (accept to build packages from source when offered, but most needed packages will be installed as binary): install.packages(devtools)Īnd then install RcppCWB from github as source: devtools::install_github("PolMine/RcppCWB")įinally, let’s check installing package tiff: download.packages("tiff", destdir=".") No further set up is needed to e.g.: install.packages("PKI", type="source") One only needs to install the R build (via the installer) and Rtools42 (as described above), in either order. Building packages from source using Rtools42 When done that way, Rtools42 may be used in the same R session which installed it or which was started before Rtools42 was installed.įrom the user perspective, Rtools42 works the same as Rtools4 and the installer is almost the same, but the installation is one step easier (one does not have to set PATH). It is recommended to use the defaults and install into c:/rtools42. The advantage is that this way it is easy to ensure that the toolchain and the libraries are always compatible, and to upgrade the toolchain and all libraries together. It is bigger than Rtools4 because it includes libraries needed by almost all CRAN packages, so that such libraries don’t have to and shouldn’t be downloaded from external sources (the CRAN Repository Policy has details on requirements on CRAN). The installer has currently about 400MB in size and about 3GB will be used after installation. Rtools42 is available via a standalone offline installer which contains all of these components and is available from here, as a file named like rtools42-4737-4741.exe, where 4737-4741 are version numbers. The compiler toolchain, headers and pre-compiled static libraries are built using MXE. R 4.2 uses Rtools42, where the build tools are from Msys2 and QPDF. R and packages are built using Rtools, which is a collection of build tools, a compiler toolchain, headers and pre-compiled static libraries. Not needed for the “recommended” packages, but some other contributed CRAN R packages may require additional external software to install or for the checks (more below). Inno Setup is needed to build the R installer. MikTeX (with basic packages and inconsolata) is needed to build package vignettes and documentation. External software for building from source Users only needing to build existing packages from source will need to read only the first two sections. This document is written as a tutorial intended to be read from the beginning until reaching the point with the required information. Howto: Building R 4.2 and packages on Windows Howto: Building R 4.2 and packages on Windows
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