Using gpc version 19991030, based on 2.95.2 19991024 (release) output is:
HELLO yes
Hope this helps Russ russwhit@mind.net
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From: miller@otago.ac.nz To: gpc@gnu.de Cc: miller@psy.otago.ac.nz Subject: Cannot produce executable Date: Wednesday, March 01, 2000 2:55 PM
Greetings,
I have some statistical programs that I would like to release under GPL. They were originally written in Borland Pascal and Speed Pascal (the
latter
is a borland-like pascal for OS/2), and all the code compiles and runs
fine
using those two compilers. Now I am trying to get everything to compile and run under gpc, so that the code will be useful to more people. It looks like I'll have a lot of questions along the way, and I'd appreciate any help that can be provided.
I'm using a version of gpc that I installed as a binary from the file gpc-19990118_i386-pc-emx0_9d.zip
I can compile and run little test programs that use no units, or that use only type definitions from units, but I get "undefined
symbol"
messages if the main program refers to any variables or procedures defined in the interface part of the unit.
Here is a small example, adapted from one posted recently.
The file def.pas has the following unit:
UNIT modul; INTERFACE
TYPE CARDINAL = 0..65535; LONGBITSET = SET OF 0..63;
Var ModS : Integer;
PROCEDURE HELLO;
IMPLEMENTATION
PROCEDURE HELLO; BEGIN WRITELN('HELLO'); END;
END.
The file test.pas has this test program.
program test; USES modul; var i:CARDINAL; c:LONGBITSET; begin ModS := 0; Hello; c:=[1]; i:=1; if (i in c) then writeln('yes'); end.
gpc -c def.pas works fine, but gpc test.pas yields the messages d:\tcpip\tmp\ccc00799: Undefined symbol _Mods referenced from text
segment
d:\tcpip\tmp\ccc00799: Undefined symbol _Hello referenced from text
segment
d:\tcpip\tmp is my temp directory, and I noticed that running gpc leaves a lot lot of small files called cca000*.exe in the temp directory.
Can anyone tell me what I'm doing wrong?
Thank you for your time,
Jeff Miller Dept of Psychology University of Otago Dunedin, New Zealand miller@otago.ac.nz http://psy.otago.ac.nz/miller