error: invalid argument '-std=c++14' not allowed with 'C'

[ryandesign]

What version of gRPC and what language are you using?

gRPC 1.48.0
Python

What operating system (Linux, Windows,...) and version?

OS X 10.9 but I don't think the issue is OS specific

What runtime / compiler are you using (e.g. python version or version of gcc)

Clang 16.0.6
Python 3.10.12

What did you do?

Build the grpcio python module

What did you expect to see?

Successful build

What did you see instead?

clang: warning: argument unused during compilation: '-stdlib=libc++' [-Wunused-command-line-argument]
error: invalid argument '-std=c++14' not allowed with 'C'

distutils.errors.CompileError: command '/opt/local/bin/clang-mp-16' failed with exit code 1

py310-grpcio.log

Anything else we should know about your project / environment?

I reported this to MacPorts > 2 years ago but nothing has happened so I'm reporting it to you now.

[XuanWang-Amos]

Hi, looks like we do have a check here which suppose to ensure that the correct -std= will be used. Since we don't have a similar environment to reproduce, can you help check why the check is not working correctly on your side?

[mascguy]

Since MacPorts is still at version 1.48.x, we didn't have the benefit of the following fix:

PR 26480 - Respect CC variable in grpcio python build

But with that in place, everything is good now.

So I think we can close this issue. @ryandesign ?

[gnossen]

@mascguy Thanks for confirming!