Fixing Incomplete Type Error on struct addrinfo on VSCode

Hello macOS user again!

incomplete class type "struct addrinfo" is not allowed

I encountered this really annoying issue when I was writing a tiny socket program in C on VSCode. And the solution was mentioned on C/C++ VSCode extension issues on GitHub.

You can try either this:

"defines": [
    "_POSIX_C_SOURCE=200112L"
],

, or this.

Thanks for reading ✌️