Does anybody know how to use the g++ compiler in XCode IDE? I have a version of g++ on my local device but I can't seem to switch the compiler in XCode. When I look at build options only the default compiler is available and I can't switch it.

I'm trying to the <bits/stdc++.h> header and policy-based data structures so if anyone knows a way to do that without switching the compiler, that would be cool too.

Thanks!