Hello, Some packages that use a configure test for OpenMP support now don't detect it when being compiled for macOS:
https://www.r-project.org/nosvn/R.check/r-release-macos-arm64/RcppArmadillo-00install.html https://www.r-project.org/nosvn/R.check/r-release-macos-x86_64/data.table-00install.html The test for working OpenMP support used by these two packages is PKG_CFLAGS='-Xclang -fopenmp' PKG_LIBS=-lomp R CMD SHLIB test.c ...completing with an exit status of 0. (Where test.c contains some valid OpenMP directives.) It's not ideal, but it's prone to false positives, not false negatives. The problem does not happen on the macOS builder. Could the CRAN builder be possibly missing some configuration pertaining to libomp.dylib? Is there anything I could do to help diagnose the problem? -- Best regards, Ivan _______________________________________________ R-SIG-Mac mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-mac
