metis cannot compile on OSX (Xcode 7.3)

[RexFuzzle]

It seems something has changed in xcode from version 7.3 that causes metis not to compile when compiling omc from source. This problem has been fixed in the brew version of metis (​https://github.com/Homebrew/homebrew-science/issues/3461) but is not working in the 3rd party submodule.

[Martin Sjölund]

So it seems their "fix" is to not use clang as the compiler for metis because the compiler is bad. So don't install XCode 7.3 since it is broken (ideally, bug Apple for a service pack).

[RexFuzzle]

Thanks for that, but it is a bit tricky to reverse the xcode update and I am trying to get it submitted to be a homebrew recipe which is impossible if it does not work with the latest xcode.

[Martin Sjölund]

The usual way to deal with buggy compilers required for a particular package management system is to apply a patch to the sources. The way the metis package in homebrew dealt with it was to force the entire package to be compiled with gcc. Something you probably don't want to do for OMC (although it possibly works). And you can't really send the configure script two different compiler names.

[RexFuzzle]

Ok, thank you, will have to try something else.

[Martin Sjölund]

I found: ​https://gitlab.nektar.info/nektar/nektar/commit/aaf3f280277eaf77034d98eb78aab72ada90955a and made a smilar adaption for OM (the limit that patch sets did not work for me though):

​https://github.com/OpenModelica/OMCompiler-3rdParty/pull/6/files

[Adam Dershowitz]

The fix proposed in the link from the earlier bug
In the earlier ticket https://trac.openmodelica.org/OpenModelica/ticket/3803 there was a link to this ​https://github.com/Homebrew/homebrew-science/issues/3461 where the proposed fix was a change to reduce MAX_JBUFS but that is not something that I have worked with at all personally.

[Martin Sjölund]

Milestone deleted