[fpc-pascal] hello world

[Mark Morgan Lloyd]

M Pulis wrote:
> Folks:
> 
> Apologies for the beginner nature of this query...
> 
> why won't this compile? It is the only open file and is saved, looks 
> like a main program to me.
> 
> program Hello;
> 
> begin
>   writeln ('Hello, world.');
>   readln
> end.
> 
> 
> getting:
> 
> No main program found in open files. Can not build.

What OS are you running, what compiler version, and what's the name of 
your file?

$ vi hello.pas
$ fpc hello.pas
Free Pascal Compiler version 3.0.0 [2016/05/04] for arm
Copyright (c) 1993-2015 by Florian Klaempfl and others
Target OS: Linux for ARMHF
Compiling hello.pas
Assembling hello
Linking hello

/usr/bin/ld: warning: link.res contains output sections; did you forget -T?
7 lines compiled, 0.7 sec
$ ./hello
Hello, world.

$

Above done on a Raspberry Pi running Debian. If you're not used to this 
environment, $ is the shell prompt.

Notes: Example program was pasted from your mail. Ignore the message 
about -T. I hit return after output to satisfy the ReadLn.

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

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