Add Graphviz and Calculix as dependencies with options to not install

[bblacey]

FreeCAD uses both Graphviz and Calculix. We should add them to the FreeCAD formula dependencies to ensure proper configuration of FreeCAD.

[luzpaz]

Reference forum thread: https://forum.freecadweb.org/viewtopic.php?f=21&t=21094#p163309
Bugtracker: https://freecadweb.org/tracker/view.php?id=2951

[luzpaz]

http://brewformulas.org/graphviz

Will you make them optional ?
depends_on "graphviz" => :optional

[luzpaz]

CalculiX-ccx 2.13 PR: https://github.com/Homebrew/homebrew-science/pull/6417

[luzpaz]

@peterlama just a follow up regarding this issue. Hopefully this can be done before 0.18 release.

[peterlama]

@luzpaz Ah yes, I forgot about it for the 0.17 release... :/

[luzpaz]

Also add gmsh https://github.com/Homebrew/homebrew-core/blob/master/Formula/gmsh.rb to this ticket, per luzpaz/FreeCAD-dependencies#20

[luzpaz]

ElmerFEM should be also added. Here is a tip on the ElmerFEM forum thread.

• CalculiX v2.15
• Graphviz v2.40 (exists in downstream Homebrew repo: link)
• Gmsh v4.2.2 (exists in downstream Homebrew repo: link)
• ElmerFEM v8.4

[luzpaz]

Updated the above post with relevant version numbers a links to pre-existing formulas in Homebrew

[vejmarie]

Did somebody ever worked on this ? I can give it a try if needed.

[vejmarie]

I have added Elmer and even created the associated formula which is laid down into our Formula's now. Got some users in Singapor who like it. Will close the current issue for the moment, and add calculix as a potneitl dependency.

[luzpaz]

@vejmarie what about graphviz and gmsh?