[Dune-devel] Dune on MacOS

[Peter Bastian]

Dear all,

I am using Dune on MacOS for many years without any hassle.

I am using macports (https://www.macports.org/) as packet manager
and it provides all you need. As pointed out by Christoph, there
is also homebrew.
The compilers provided by Apple (with XCode) are usually too old, so I never
used them.

Best,

Peter

Am 07.07.21 um 22:41 schrieb Christoph Grüninger:
> Hi Simon,
>
> I never used a macOS myself, but I can share some insights:
>
>> Recently, some of my colleagues tried to install Dune (core modules +
>> some extensions) on their Mac. They used the default compiler on a MacOS
>>> = 10.13 and got several compiler errors, e.g. related to missing
>> std::optional.
> Is there really a default compiler? I think you need to install Xcode.
> You can have a look what LLVM is part of a Xcode:
>> https://en.wikipedia.org/wiki/Xcode#Xcode_11.x_-_13.x_(since_SwiftUI_framework)_2
>> Can anyone share their experience with MacOS since I myself do not own
>> any of these systems, i.e.
>>
>> - Which MacOS is supported with its default software?
> I think there is no default, you have to install it explicitly.
>
>> - Is there a minimal supported version for Apple-clang?
> See the list of Xcode version, newer version might required recent
> versions of macOS.
>
>> - Are there any other restrictions on a standard MacOS setup?
>> - What about external dependencies, like MPI, BLAS, LAPACK or
>> SuiteSparse? Are they available via package managers?
> Most of our users in the past relied on homebrew. MacPorts is an
> alternative. Both should provide all Dune dependencies.
>
>> - Is it possible to replace the default apple compiler easily by
>> something else?
> Setting the compiler when calling CMake should do the trick.
>
> I hope I did not confuse too much.
>
> Bye
> Christoph
>
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