On Sun, 09 Feb 2020 19:05:28 +0100, Jan Stary wrote: > But the externs should be mentioned in the manpage, right? > That's the only place they are mentioned before being talked about > in the text; although I suspect that's why people keep declaring them > in source code - it's what SYNOPSIS said.
I don't think so, you don't copy the contents of the SYNOPSIS to your program. The reason we have code that declares these itself is that is what you needed to do in 4.3BSD (and probably System V where the API originated). - todd