There's also interpretation that merely linking with compatible interface would ...

garaetjjte on Sept 10, 2021 | parent | context | favorite | on: 60x speed-up of Linux “perf”

There's also interpretation that merely linking with compatible interface would be infringing even without distributing two parts together (curiously, used by Stallman): https://news.ycombinator.com/item?id=26606328