Actually it doesn't.  It breaks some Makefiles and some languages like Go (with
cgo).

Instead, I've added a "cc" script to my PATH with the following:

--8<---------------cut here---------------start------------->8---
for i in /usr/local/bin/cc /usr/bin/cc /bin/cc clang gcc; do
	command -v $i >/dev/null 2>&1 && exec $i "$@"
done
--8<---------------cut here---------------end--------------->8---

-- 
Pierre Neidhardt
https://ambrevar.xyz/