By adding this compiler flag for a minimum supported MacOS version, the binary get's compiled so that it also runs on older MacOS versions.
Without this PR I compiled the repo and the resulting binary worked on MacOS Catalina, but not on Sierra.
With this PR the compiled binary also worked on MacOS Sierra.
I have not tested other MacOS versions.
By adding this compiler flag for a minimum supported MacOS version, the binary get's compiled so that it also runs on older MacOS versions. Without this PR I compiled the repo and the resulting binary worked on MacOS Catalina, but not on Sierra. With this PR the compiled binary also worked on MacOS Sierra. I have not tested other MacOS versions.