RE: Error: default graphics toolkit 'gnuplot' is not available!

[Crooks, Cynthia J]

Mike,

Thank you.  I built a newer gnuplot yesterday.  I will try rebuilding 
dynamically with the newer gnuplot and see how far I get.

I have built octave on SLES without a problem, but ....

Thanks again.

Cindy

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Mike Miller
Sent: Friday, January 17, 2014 9:57 AM
To: Octave Help List
Subject: Re: Error: default graphics toolkit 'gnuplot' is not available!

On Fri, Jan 17, 2014 at 14:12:20 -0000, Crooks, Cynthia J wrote:
> I have a user that needs to use octave on a “Red Hat Enterprise Linux 
> Server release 5.4 (Tikanga)” machine.  The octave distributed with 
> this OS release is too old (3.0.5)  for his needs.  He would like to 
> have a statically linked copy because he needs to use this for a class 
> he is going to teach in the UK on machines we don’t have admin rights.
>
> I have compiled octave 3.8.0.  It was configured with the following
> parameters:
>
> ./configure --prefix=/hpc/tstapps/src/octave/octave-3.8.0/build 
> --disable-dl --disable-shl \
>
>      --disable-shared --disable-dynamic --disable-docs LDFLAGS=-static
>
> The “make” command completed successfully.  The “make check” had 
> several failures with this error:
>
> default graphics toolkit 'gnuplot' is not available!
>
> I do have gnuplot installed on the system.  So I do not understand the 
> error.  I have researched similar problems on the web, but I don’t 
> seem to be able to find anything that looks like my issue.
>
> I have logs for the “configure”, “make” and “make check”, as well as 
> the test/fntests.log.  Let me know what you need.
>
> Any help would be greatly appreciated.  Thank you for your time.

Hi, unfortunately I think the error you are seeing is due to disabling the 
shared loading feature of Octave. I'm honestly not sure if the functions under 
libinterp/dldfcn are supposed to work with a static build or not. The 
__init_gnuplot__ function is one such function.
Whether it's supposed to work or not, it is definitely a less-used way to build 
Octave.

I have also built Octave 3.8.0 on a RHEL 5.2 system for which I have no admin 
privileges and building statically is not really required to do so. Someone 
else may have better advice if you really need to do a static build.

Also please note that the version of gnuplot that is shipped with RHEL 5.x (4.0 
patchlevel 0) is too old to work with features that Octave 3.6.x and 3.8.0 make 
use of, so you'll have to build and make available a newer version of gnuplot 
as well.

--
mike
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