From help-octave-request at bevo dot che dot wisc dot edu Thu Jan 15 12:12:07 2004
Subject: "why does dynamic linking work when octave_config_info says it 	shouldn't?"
From: "Henry F. Mollet" <mollet at pacbell dot net>
To: Joe Koski <jkoski11 at comcast dot net>,    Paul Kienzle <pkienzle@users.sourceforge.net>
CC: Octave_post <help-octave at bevo dot che dot wisc dot edu>
Date: Thu, 15 Jan 2004 10:09:08 -0800

After an off-list discussion and further checking, we've come to the
conclusion that Joe's Fink 2.1.46 and octave-forge installation and my Fink
2.1.46 installation both support dynamic linking and run oregonator.oct
*despite* the fact that both our systems allegedly *do not* support it:
octave:1> octave_config_info ("dld")
ans = 0
octave:2> octave_config_info ("ENABLE_DYNAMIC_LINKING")
ans = false

In my case, I had to make sure that I used a different name e.g.
myorgonator.cc, and then change to
DEFUN_DLD (myoregonator, args, ,
  "The `myoregonator'.\n\
before compiling as per P.K's suggestion. The name change was needed because
the directory containing  oregonator.m was in my path.
Henry

on 1/13/04 8:10 PM, Joe Koski at jkoski11 at comcast dot net wrote:

> For what it's worth, I was able to make oregonator.oct work on my Mac OS X
> 10.2.8 platform with Fink 2.1.46 and octave-forge. From previous posts, I
> think my configuration is similar to Henry's. And, yes, I did it in my
> Documents directory where I had all the permissions.
> 
> Joe Koski
> 
> on 1/13/04 8:52 PM, Paul Kienzle at pkienzle at users dot sourceforge dot net wrote:
> 
>> Is this possibly because you don't have write permission
>> for the directory you are in [/doc/octave/examples]?  The
>> C example works because you are in one of your own
>> directories [~/cando].
>> 
>> Copy the oregonator.cc example somewhere in your
>> local path and try again.
>> 
>> Paul Kienzle
>> pkienzle at users dot sf dot net
>> 
>> On Jan 13, 2004, at 9:54 PM, Henry F. Mollet wrote:
>> 
>>> To *use* an .oct file, I must have an Octave version which supports
>>> dynamic
>>> linkng, which I don't have yet. Presumably it also means that I cannot
>>> even
>>> *compile* a .cc source file (to make my .oct executable file) for
>>> practice
>>> purposes? In contrast I can compile and run my own hello.c.
>>> Henry
>>> 
>>> 
>>> [~] tcsh:17> cd ../../sw/share/doc/octave/examples
>>> [doc/octave/examples] tcsh:18> ls
>>> Makefile                  info-emacs-info           oregonator.cc
>>> Makefile.in               info-emacs-octave-help    oregonator.m
>>> hello.cc                  make_int.cc
>>> 
>>> [doc/octave/examples] tcsh:19> mkoctfile oregonator.cc
>>> /var/tmp//cc5GNwcZ.s:unknown:FATAL:can't create output file:
>>> oregonator.o
>>> 
>>> [doc/octave/examples] tcsh:31> mkoctfile hello.cc
>>> /var/tmp//cc9Bo7wZ.s:unknown:FATAL:can't create output file: hello.o
>>> 
>>> [~/cando] tcsh:36> gcc hello.c
>>> hello.c: In function `main':
>>> hello.c:3: warning: return type of `main' is not `int'
>>> [~/cando] tcsh:37> a.out
>>> Hello, World!
>>> [~/cando] tcsh:38> cat hello.c
>>> #include <stdio.h>
>>> void main()
>>> {
>>>         printf("Hello, World!\n");
>>> }
>>> 
>>> 
>>> 
>>> 
>>> 
>>> -------------------------------------------------------------
>>> Octave is freely available under the terms of the GNU GPL.
>>> 
>>> Octave's home on the web:  http://www.octave.org
>>> How to fund new projects:  http://www.octave.org/funding.html
>>> Subscription information:  http://www.octave.org/archive.html
>>> -------------------------------------------------------------
>>> 
>> 
>> 
>> 
>> -------------------------------------------------------------
>> Octave is freely available under the terms of the GNU GPL.
>> 
>> Octave's home on the web:  http://www.octave.org
>> How to fund new projects:  http://www.octave.org/funding.html
>> Subscription information:  http://www.octave.org/archive.html
>> -------------------------------------------------------------
>> 
> 
> 
> 
> -------------------------------------------------------------
> Octave is freely available under the terms of the GNU GPL.
> 
> Octave's home on the web:  http://www.octave.org
> How to fund new projects:  http://www.octave.org/funding.html
> Subscription information:  http://www.octave.org/archive.html
> -------------------------------------------------------------



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

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