[fpc-pascal] Unbuffering I/O

[Mark Morgan Lloyd]

I think I've seen this question asked before, my apologies if this was 
recently.

I've got two programs intended to be functionally identical, one in Perl 
and the other in FPC. They read a unix-domain datagram, decode the 
message, and emit output; if this goes to a file then it's reasonable to 
monitor it using  tail -f

Perl has a variable that you can set to force output to be unbuffered, 
with the result that as soon as a message is output it's in the file in 
its entirety.

Is there an equivalent for Pascal, or should I be using something like 
fpSync(stdout) at opportune times?

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]