Re: Building Octave from source

I found out the suitesparse version using
$ sudo ldconfig -v | grep libsuitesparse
sbin/ldconfig.real: /lib/x86_64-linux-gnu/ld-2.31.so is the dynamic linker,
ignoring

libsuitesparseconfig.so.5 -> libsuitesparseconfig.so.5.7.1
/sbin/ldconfig.real: /lib32/ld-2.31.so is the dynamic linker, ignoring

However the Sundials version was 3.1. So I updated it to sundials 5.1 which
I compiled from source code available from
here
<https://computing.llnl.gov/projects/sundials/sundials-software>
Now I get the following error while building from source.

configure: WARNING: SUNDIALS IDA library not configured with SUNLINSOL_KLU
or sunlinksol_klu.h is not usable.  The solvers ode15i and ode15s will not
support the sparse Jacobian feature.
The command I gave was :
./../configure --prefix=$HOME/my_octave

Even with the CPP flag like below, I get the same error:
./../configure --prefix=$HOME/my_octave
CPPFLAGS="-I/usr/include/suitesparse"

In the compile output,
checking for sunlinsol/sunlinsol_klu.h... no
checking for SUNKLU in -lsundials_sunlinsolklu... no
configure: WARNING: SUNDIALS IDA library not configured with SUNLINSOL_KLU
or sunlinksol_klu.h is not usable.  The solvers ode15i and ode15s will not
support the sparse Jacobian feature.

But in the /usr/include/sunlinsol...I could not find a sunlinsol_klu.h
library. Do I need to edit the configure.ac file in someway to make this
work?


On Tue, Dec 29, 2020 at 2:18 AM Markus Mützel <[email protected]> wrote:

> Am 28. Dezember 2020 um 18:32 Uhr schrieb "Sambeet Panigrahi":
> > Hi,
> > I have built Octave from source using the instructions from the Octave
> building website[http://wiki.octave.org/Building]. I used the debian
> maintainers site[
> https://salsa.debian.org/pkg-octave-team/octave/blob/master/debian/control]
> to get the debian packages that can be installed using apt. So after
> installing all the dependencies, I used the following code:
> > hg clone
> https://www.octave.org/hg/octave[https://www.octave.org/hg/octave] && \
> > cd octave                                  && \
> > ./bootstrap
> >
> > mkdir .build                            && \
> > cd    .build                            && \
> > ./../configure --prefix=$HOME/my_octave
> >
> > But using the above I get the following error: configure: WARNING:
> SUNDIALS IDA library not configured with SUNLINSOL_KLU or sunlinksol_klu.h
> is not usable.   The solvers ode15i and ode15s will not support the sparse
> Jacobian feature. I managed to build Octave using the command,
> ./../configure --prefix=$HOME/my_octave
> CPPFLAGS="-I/usr/include/suitesparse"
> >  Because I found the klu.h library inside suitesparse.How can I add this
> to the configure.ac[http://configure.ac]
> > so that next time I can just configure using: ./../configure
> --prefix=$HOME/my_octave
> > Can someone please help me out?
>
> Which version of SuiteSparse do you use?
>
> Might be related to https://savannah.gnu.org/bugs/?55937
> IIUC, SUNLINSOL_KLU should be working out of the box with SuiteSparse 4.1
> (and newer?).
>
> Markus
>
>
>