Kevin, I cannot replicate the problem. The libraries are as provided by LLVM so they do link both the system and clang 7 dylibs. Can you give details on exact versions? Also is does this happen in R or RStudio?
Thanks, Simon > On May 30, 2019, at 12:11 PM, Kevin Ushey <kevinus...@gmail.com> wrote: > > Hi, > > Some users have reported issues when attempting to load packages using > C++ code on El Capitan -- for example: > > Error: package or namespace load failed for ‘readr’ in dyn.load(file, > DLLpath = DLLpath, ...): > unable to load shared object > '/Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/libs/Rcpp.so': > dlopen(/Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/libs/Rcpp.so, > 6): Symbol not found: ___cxa_uncaught_exceptions > Referenced from: > /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libc++.1.dylib > Expected in: /usr/lib/libc++abi.dylib > in /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libc++.1.dylib > > The main thing that stands out to me is that /usr/lib/libc++abi.dylib > is being requested, rather than the libc++abi library that's > distributed with the macOS R binaries. I can confirm as much in my R > 3.6.0 installation: > > kevin@cdrv:/Library/Frameworks/R.framework/Resources/lib > $ otool -L libc++.1.dylib > libc++.1.dylib: > > /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libc++.1.dylib > (compatibility version 1.0.0, current version 1.0.0) > /usr/lib/libc++abi.dylib (compatibility version 1.0.0, current > version 400.17.0) > > /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libc++abi.1.dylib > (compatibility version 1.0.0, current version 1.0.0) > /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, > current version 1252.200.5) > > This can be changed with install_name_tool; e.g. > > install_name_tool -change \ > /usr/lib/libc++abi.dylib \ > /Library/Frameworks/R.framework/Resources/lib/libc++abi.1.dylib \ > /Library/Frameworks/R.framework/Resources/lib/libc++.1.dylib > > And this did fix the issue for one user > (https://community.rstudio.com/t/installing-packages-after-update-to-3-6-same-problem/31824) > > My question is: is the usage of the system's libc++abi intentional, or > should that be pointing to the bundled libc++abi? > > Thanks, > Kevin > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
