[Rcpp-devel] building shared library error with sourceCpp

[Simon Urbanek]

Fatima,

it means you don't have command line tools installed (they are independent of Xcode and Apple OS upgrades delete things, unfortunately) - try

sudo xcode-select —install

That should fix the error you see. However, Catalina broke more things so you may look at the links Dirk pointed out if you get new errors.

Cheers,
Simon



> On Dec 27, 2019, at 8:16 PM, Fatima Batool <gbatoolfatima at gmail.com> wrote:
> 
> Hi all, 
> 
> Could anyone please advice what is going on in the following error and how can I fix it?
> 
> sourceCpp("/Users/fatimabatool/documents/New/Rcodes/trial.cpp") 
> clang++ -std=gnu++11 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include" -I"/Users/fatimabatool/Documents/New/Rcodes" -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include  -fPIC  -Wall -g -O2  -c trial.cpp -o trial.o
> Error in sourceCpp("/Users/fatimabatool/documents/New/Rcodes/trial.cpp") : 
>   Error 1 occurred building shared library.
> clang: warning: no such sysroot directory: '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk' [-Wmissing-sysroot]
> In file included from trial.cpp:9:
> In file included from /Users/fatimabatool/Documents/New/Rcodes/trial.hpp:12:
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/stdio.h:108:15: fatal error: 'stdio.h' file not found
> #include_next <stdio.h>
>               ^~~~~~~~~
> 1 error generated.
> make: *** [trial.o] Error 1
> 
> 
> I was able to source all .cpp files before system updates. I have recently updated my MacOS to Catalina (10.15.2) and using Xcode 11.3. I am working in R Action of the Toe. Using version 1.0.3 of Rcpp. I have clang version 4.0.1. 
> 
> I have Library/Developer but no ../CommandLineTools/SDKs/MAcOSX.sdk subdirectories exist there. 
> 
> 
> 
> Best wishes, 
> Fatima
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