david-cortes opened a new issue, #43546: URL: https://github.com/apache/arrow/issues/43546
### Describe the bug, including details regarding any error messages, version, and platform. Installing the R package for `arrow` using `install.packages` without a previous system `libarrow` installation will make it compile the core library on-the-fly, but compilation of said library ignores whatever compilation flags a user sets up for their R setup. As an example, in a linux system, if I create a file `~/.R/Makevars` like this: ``` MAKEFLAGS += -j$(nproc) ``` R packages compiled from source will be compiled in parallel using the number of threads in the system as returned by `nproc`, but installation of the core libarrow during `install.packages` will not add such flag and will thus compile single-threaded. Same for other flags used in `Makevars`, like `CXXFLAGS`. ### Component(s) R -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
