Sundials prevents install of Octave

[dershow]

Octave requires Sundials2, which conflicts with the Sundials port. Sundials (version 3) is required for some other ports. This was discussed in this thread: ​https://lists.macports.org/pipermail/macports-users/2018-June/045227.html

The thread included a proposed patch that would add a variant to octave of -sundials2 I was able to locally build it that way, and it worked for me with octave 4.4.0_5, but the patch would need a change due to the upgrade to octave 4.4.0_6. I would encourage that this variant be added to octave to allow it to coexist with Sundials.

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In b20ddd5fc31b0f53e42dbc310586856390643175/macports-ports (master):

octave: make SUNDIALS support optional

Fixes #56989

[lpn25]

Similar problem when trying to update octave from 6.2.0_0 to 6.2.0_1:

Error: Can't install sundials because conflicting ports are active: sundials2

To fix it, I had to explicitly put -sundials (somehow it was on when octave was installed but wasn't causing issues until now)

[Schamschula (Marius Schamschula)]

It's telling you that you have to deactivate sundials2 before upgrading octave.

The reason it worked before its that though octave found sundials2, sundials did not provide there required symbols, and, thus, octave was build w/o sundials support.

[mascguy (Christopher Nielsen)]

The various sundials ports are now segregated, eliminating these headaches. Fixed per issue:63631