Hi all, I have several packages (libopenexr/libimath/libdeflate) that use CMake on the CRAN that have recently been taken down for failing to compile on the extratest “blackswan” server. As part of the configure script, these packages pull the compiler `CC` and `CXX` variables to build a static library. The failure is occurring because the “blackswan” server is apparently using ccache in some sort of non-standard way: grepping the output of `R CMD config CC` in my configure script to detect ccache does not work, which leads me to believe there may be an custom alias set up on the server for invoking a compiler cache tool. You can see the failure logs here:
https://www.stats.ox.ac.uk/pub/bdr/donttest/libdeflate.log And my configure script here : https://github.com/tylermorganwall/libdeflate/blob/main/tools/config/configure.R Note that I've excluded the possibility of whitespace being the issue as CC is pulling `/usr/bin/ccache` and not an empty string. The only remaining reason for the failure I can think of is a custom alias. I have a workaround written and ready to be deployed if that’s indeed the case, but I don’t want to attempt a fix without confirming the root cause. Can someone with access to the blackswan server please provide the Makeconf configuration file or at the very least, clarify how ccache is invoked? Best regards, Tyler Morgan-Wall ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
