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Re: How to combine several functions in a single oct-file? (2)

From: Lukas Reichlin
Subject: Re: How to combine several functions in a single oct-file? (2)
Date: Mon, 13 Feb 2012 00:01:11 +0100

On 12.02.2012, at 23:36, Lukas Reichlin wrote:

> On 12.02.2012, at 23:12, Michael Goffioul wrote:
>> On Fri, Feb 10, 2012 at 8:50 AM, Carlo de Falco <address@hidden> wrote:
>>> 2012/2/10 Lukas Reichlin <address@hidden>:
>>>> Dear Octave community,
>>>> I noticed that "which arrayfun" points to cellfun.oct (octave 3.6.0). This 
>>>> means that both arrayfun and cellfun are stored in a single oct-file. Now 
>>>> I wonder how octave knows that it finds arrayfun in cellfun.oct? Does 
>>>> octave load all oct-files on startup? I thought that a function "foo" has 
>>>> to be located in foo.m, foo.oct or in the same m-file as the calling 
>>>> function.
>>>> Background: My control package has dozens of oct-files and I like to 
>>>> combine them in just a few oct-files. They all use the SLICOT Fortran 
>>>> library and I compiled the required parts of it into every single 
>>>> oct-file. I think it would be better if the Fortran code would be stored 
>>>> in one big oct-file that offers all the user functions. Like cellfun.oct.
>>>> Thanks for any insights and best regards,
>>>> Lukas
>>> Have a look at the command "autoload", it should do what you ask,
>>> you can also look at the PKG_ADD commands in packages combinatorics
>>> and odepkg for inspiration.
>>> If you use this approach, be aware that it has some side effects:
>> There is (or used to be) the PKG_DEL counterpart to PKG_ADD. But
>> what's missing is autounload (such feature request makes sense imo).
>> The other possibility is to put all the common code into a single
>> shared library, then link all oct-files to that library.
>> Michael.
> Hi Michael,
> I like your idea of a single shared library very much. Is it possible to 
> create such a library out of SLICOT upon package installation? It would be 
> nice if I could link it the same way as the BLAS and LAPACK libraries.
> Best regards,
> Lukas

PS: I would like to include the archive slicot.tar.gz [1] in my package. Then, 
upon package installation, it should be unpacked and compiled to a library I 
can link to. Until now, I have to add all files by hand, which is quite ugly 


[1] SLICOT Library

[2] Makefile of the control package

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