[fpc-pascal] POpen en PClose

[Michael Van Canneyt]

On Mon, 20 Jul 2026, Adriaan van Os via fpc-pascal wrote:

>
> I am looking at the implementation of POpen and PClose in the runtime-library 
> for Darwin (or more general for UNIX). It seems like it doesn't call into 
> libc popen and pclose, but instead follows its own implementation in unix.pp 
> in POpen_internal. I am just curious to know the reason.

- Because on linux we're independent of libc.
- IIRC the libc version uses the C FILE type, which is not compatible with
   the file descriptor we use elsewhere. Introducing that would require lots
   of wiring to handle both paths.

Michael.