https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67187
--- Comment #5 from Jai <jai.sharma3521 at gmail dot com> --- (In reply to Marc Glisse from comment #3) > (In reply to Jai from comment #2) > > I am talking about this > > [snip wall of text with some warnings but no error as far as I can see] > > > How to remove this issue? > > Again, what issue? See the Config.log you can see the Clang error. ndefined symbols for architecture x86_64: "_main", referenced from: implicit entry/start for main executable ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)