This installer has been superceded by the {macrtools} R package, which automatically installs and configures the R toolchain for compiled code on macOS.

Please do not use the r-macos-clang installer package as it is notably out of date.

Installer Package for `clang4` R Binaries

The repository contains the scripts used to create a macOS installer package (.pkg) for the clang4 binaries. For those interested, the installer can be obtained on either the project's Release page.

The pre-built binaries this installer setups during the installation can be found at: http://r.research.att.com/libs/.

The scripts have the potential to be generalized further so that .pkg installers are available to be created for all binaries listed on http://r.research.att.com/libs/.

Financial support was provided to sign the installer by Professor Timothy Bates of the University of Edinburgh.

How do I use the installer?

Download it from the project's Release page, open the installer by right clicking to bring up menu and selecting "Open". From here, navigate through it like a normal macOS installer.

If you have yet to install Xcode Command Line Interface Tools ("Xcode CLI"), you will then need to open Terminal (Applications/Utilities/Terminal) and type:

xcode-select --install

That's it. Once installed, you can start using compiled code in R like normal with the added benefit of OpenMP.

If you want to see behind the curtain, continue reading...

What does the installer do?

The clang4-r installer performs two actions that require the users password to accomplish. These actions are:

unpack a set of pre-made binary files into the /usr/local/clang4 directory
establish the proper paths for CC, CXX, CXX**, and LDFLAGS in the ~/.R/Makevars file

In essence, it provides a graphical user interface installation guide, more secure path manipulation, and a smarter handling of a pre-existing ~/.R/Makevars when compared to the following pure bash approach:

# Download binary
curl -O http://r.research.att.com/libs/clang-4.0.0-darwin15.6-Release.tar.gz
# Extract binary onto root directory
tar fvxz clang-4.0.0-darwin15.6-Release.tar.gz -C /

# Overwrites ~/.R/Makevars file if present otherwise creates it
cat <<- EOF > ~/.R/Makevars
# The following statements are required to use the clang4 binary
CC=/usr/local/clang4/bin/clang
CXX=/usr/local/clang4/bin/clang++
CXX1X=/usr/local/clang4/bin/clang++
CXX98=/usr/local/clang4/bin/clang++
CXX11=/usr/local/clang4/bin/clang++
CXX14=/usr/local/clang4/bin/clang++
CXX17=/usr/local/clang4/bin/clang++
LDFLAGS=-L/usr/local/clang4/lib
# End clang4 inclusion statements
EOF

# Install Xcode CLI tools
xcode-select --install

Verify the Installer

Thanks to the financial support provided by Professor Timothy Bates of the University of Edinburgh to join the Apple Developer program. The installer is now signed using developer credentials.

As a result, the installer should have a "lock" icon in the upper right corner:

Clicking the lock icon will reveal the signed developer certificate:

With this being said, the code used to generate the installer has been made publically available under an open source license (GPL >= 2).

Overview of Files

Below is an abridged version of the actions of each file provided.

License

GPL (>= 2)

License

coatless-mac/r-macos-clang

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