> What is your list of name clashes that you experienced? How much real headaches did they give you? Or is it all a non-problem? Not a rhetorical question - I'm mostly working on smaller projects < 100KLOC.

I too refrained from using C for that large software so I don't have many examples either, but in one case I was using TweetNaCl where you have to supply `extern void randombytes(unsigned char*, unsigned long long)` for CSPRNG and I had to rename it for some reason I can no longer recall.