Apologies for naive question and failure to be able to parse the logs. When running check on the package dplR using linux, windows, macos, and macos-arm64 I get failure on the Mac flavors but not linux pr windows. And R CMD check --as-cran passes fine on the tarball locally on my Mac.

The job and logs are here:
https://github.com/OpenDendro/dplR/actions/runs/13044039594/job/36391482813

In the macos check the issues appears to pop up on line 141 when the linker (ld) is trying to find libraries that don't exist for gfortran. This happens on on line 142 for the arm64 check. Also, the arm64 check has another error on line 132 that relates to some C code being compiled.

I am aware of the array size warnings (e.g., line 112) but don't know if that is connected to the error. The linux compiler is not concerned with -fmax-stack-var-size nor is the windows compiler.

Any insights appreciated.