[llvm-dev] Build on macOS Catalina

[Luca Ciciriello via llvm-dev]

Hi all.

I’ve built and installed llvm+clang from git repository on macOS Catalina. My problem now is that I get the following error building my cpp file:

clang++ -std=c++17 testcpp.cpp -o test
In file included from testcpp.cpp:1:
In file included from /usr/local/clang_llvm/bin/../include/c++/v1/iostream:37:
In file included from /usr/local/clang_llvm/bin/../include/c++/v1/ios:214:
In file included from /usr/local/clang_llvm/bin/../include/c++/v1/iosfwd:95:
/usr/local/clang_llvm/bin/../include/c++/v1/wchar.h:118:15: fatal error: 'wchar.h' file not found
#include_next <wchar.h>
              ^~~~~~~~~
1 error generated.

I get this error only on macOS and not on Linux. I’ve followed the same procedure on Linux and MacOS

On macOS I’ve created the links:

ln -s /usr/local/clang_llvm/include/c++ /usr/local/include/c++

but this doesn’t solve the problem. Any idea?

Best regards

Luca Ciciriello

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