Clang has a permissive license, GCC is (of course) GPL.
Which one is best for open source is debatable.
Permissive licenses make it easier for companies to make proprietary software, or even a closed source version of the original project.
Copyleft licenses (like GPL) are intended to promote free/open source software but they can be a legal headache, which can make users favor proprietary solutions.
On HN, I think that people tend to prefer permissive licenses (but complain when large companies "steal" their work, go figure...).
Which one is best for open source is debatable.
Permissive licenses make it easier for companies to make proprietary software, or even a closed source version of the original project.
Copyleft licenses (like GPL) are intended to promote free/open source software but they can be a legal headache, which can make users favor proprietary solutions.
On HN, I think that people tend to prefer permissive licenses (but complain when large companies "steal" their work, go figure...).