From maintainers-request at octave dot org Wed Mar  1 11:21:11 2006
Subject: Re: Compiling octave-workshop
From: "Sebastien Loisel" <sloisel at gmail dot com>
To: "Quentin Spencer" <qspencer at ieee dot org>,         "octave maintainers mailing list" <maintainers@octave.org>
Date: Wed, 1 Mar 2006 18:19:32 +0100

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Hello,

Quentin stumbled onto a problem, which is actually the symptom of a deeper
problem. I don't know how to get compile and link options out of mkoctfile
(and I haven't found an octave-config script.) How do I find link and
compile options to create Octave binaries? If there is no way, looking
forward, can we get an octave-config like many other packages?

In the mean time, what's a good way of pulling the compile and link options
out of (say) mkoctfile?

Quentin, as a workaround, can you add these libraries to your LDFLAGS
environment variable?

Cheers,

S=E9bastien Loisel

On 3/1/06, Quentin Spencer <qspencer at ieee dot org> wrote:
>
> Hi Sebastien,
>
> I got a local installation of qt4 working and am trying to build
> octave-workshop, but I've hit my first snag:
>
> checking for liboctave compile options... ok
> checking whether we can build a liboctave program... configure: error:
> Cannot link against liboctave
>
> The problem appears to be missing linker flags. You probably didn't run
> into this because your copy of octave was not compiled with support for
> the ufsparse libraries. I was able to get the test to pass by adding
> "-lcholmod -lcolamd -lccolamd -lmetis" to the compile command. These are
> optional libraries that are required for sparse matrix support in 2.9.4
> and later releases.
>
> -Quentin
>
>

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Hello,<br><br>Quentin stumbled onto a problem, which is actually the sympto=
m of a deeper problem. I don't know how to get compile and link options out=
 of mkoctfile (and I haven't found an octave-config script.) How do I find =
link and compile options to create Octave binaries? If there is no way, loo=
king forward, can we get an octave-config like many other packages?
<br><br>In the mean time, what's a good way of pulling the compile and link=
 options out of (say) mkoctfile?<br><br>Quentin, as a workaround, can you a=
dd these libraries to your LDFLAGS environment variable?<br><br>Cheers,
<br><br>S=E9bastien Loisel<br><br><div><span class=3D"gmail_quote">On 3/1/0=
6, <b class=3D"gmail_sendername">Quentin Spencer</b> &lt;<a href=3D"mailto:=
qspencer at ieee dot org">qspencer@ieee dot org</a>&gt; wrote:</span><blockquote class=
=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, 204, 204); margin=
: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi Sebastien,<br><br>I got a local installation of qt4 working and am tryin=
g to build<br>octave-workshop, but I've hit my first snag:<br><br>checking =
for liboctave compile options... ok<br>checking whether we can build a libo=
ctave program... configure: error:
<br>Cannot link against liboctave<br><br>The problem appears to be missing =
linker flags. You probably didn't run<br>into this because your copy of oct=
ave was not compiled with support for<br>the ufsparse libraries. I was able=
 to get the test to pass by adding
<br>&quot;-lcholmod -lcolamd -lccolamd -lmetis&quot; to the compile command=
. These are<br>optional libraries that are required for sparse matrix suppo=
rt in 2.9.4<br>and later releases.<br><br>-Quentin<br><br></blockquote>
</div><br>

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