I don’t know how/when this problem arose, but as of a few days ago, I can’t build source packages any longer. I’ve been through quite a lot of resources looking for answers and no luck so far, so turning to the mercies of this list.
I have this problem with either R 4.1.1 or R 4.2.0 I’ve disabled .Rprofile and .cshrc files and the problem persists. Running BigSur 10.16 When I try for instance to install MASS (as an example, the problem occurs with any pkg needing compilation) I see this: [Abbott-2:~/Desktop] bryanhanson% R CMD INSTALL MASS * installing to library ‘/Library/Frameworks/R.framework/Versions/4.1/Resources/library’ * installing *source* package ‘MASS’ ... ** package ‘MASS’ successfully unpacked and MD5 sums checked ** using staged installation ** libs /usr/local/clang4/bin/clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/usr/local/include -fPIC -Wall -g -O2 -c MASS.c -o MASS.o MASS.c:18:10: fatal error: 'stdlib.h' file not found #include <stdlib.h> ^~~~~~~~~~ 1 error generated. make: *** [MASS.o] Error 1 ERROR: compilation failed for package ‘MASS’ * removing ‘/Library/Frameworks/R.framework/Versions/4.1/Resources/library/MASS’ * restoring previous ‘/Library/Frameworks/R.framework/Versions/4.1/Resources/library/MASS’ I think this feedback says the compiler is present and working. Most resources about "fatal error: 'stdlib.h' file not found” end up being cases of the headers are actually not installed. However I can see the “missing” headers in /Library/Developer/CommandLineTools/usr/include/c++/v1 but I’m not sure this is place R is looking (information on the web is sometimes dated, and Apple seems to have moved things around in recent versions). So my best guess is that R is looking elsewhere or doesn’t have a link to the correct location. R Installation and Administration doesn’t appear to spell the location or I missed it. I have carefully uninstalled Xcode (13) and re-installed it, and run Xcode-select —install (it thinks the CLTs are already installed). This does not make any difference, the problem persists. Restarting the machine after updates does not make a difference either. Thanks for any suggestions, as I’m really stuck... Bryan > sessionInfo() R version 4.1.1 Patched (2021-10-18 r81073) Platform: x86_64-apple-darwin17.0 (64-bit) Running under: macOS Big Sur 10.16 Matrix products: default BLAS: /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRblas.0.dylib LAPACK: /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRlapack.dylib Random number generation: RNG: Mersenne-Twister Normal: Inversion Sample: Rounding locale: [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] compiler_4.1.1 _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac