Building Elixir from source segfaults on macOS on Apple Silicon while compiling

Related: ongoing compatibility table compiled by the Homebrew team: <a href="https:&#x2F;&#x2F;github.com&#x2F;Homebrew&#x2F;brew&#x2F;issues&#x2F;7857" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Homebrew&#x2F;brew&#x2F;issues&#x2F;7857</a>. (Please respect the team and refrain from polluting the thread. If in doubt check the comments marked off topic.)

The first comment on that thread is from the creator of Elixir:<p>&gt; Elixir doesn’t compile any native code. Therefore these errors mean that you were able to compile the Erlang VM but either the code or the compiler has bugs and the VM is seg faulting.

Why is this news? Thousands of projects are in this position where they are porting to a new platform. This is normal.

I tried to use clang to compile some NDK code on Android and the resulting binary segfaulted. I tracked it down to what appeared to be a bug with register spilling. The fix was to use gcc and hope the clang bug was eventually fixed.<p>These things happen.<p><a href="https:&#x2F;&#x2F;groups.google.com&#x2F;forum&#x2F;m&#x2F;#!topic&#x2F;google-breakpad-discuss&#x2F;uNjAGPCX1Fo" rel="nofollow">https:&#x2F;&#x2F;groups.google.com&#x2F;forum&#x2F;m&#x2F;#!topic&#x2F;google-breakpad-di...</a>

The elixir compiler runs jobs in parallel so it could be triggering a concurrency issue due to differences in the memory model between x86 and ARM. I’ve peered at the Erlang VM code and it looks like they are using primitives that are aware of the differences but they might not have covered everything.<p>Until recently there was a concurrency bug in the VM that would trigger on elixir compiles that would cause compilation to hang on both x86 and ARM.

Honest question, why go through this transition with macOS as a developer instead of Linux or Windows? Is there something that macOS provides developers that other operating systems don&#x27;t?

Stupid question time -<p>Where are these folks getting Apple silicon? Is there a dev MacOS distribution for iPad? Or is it likely they have preview hardware?

Are there any 4k page size expectations built into the VM? From wwdc the DTKs have 16k pages?

I expect that we&#x27;ll see a lot of this. At least it&#x27;s getting caught before it gets to consumers? But not entirely impressed with the work Apple is making developers shoulder.

&gt;a new architecture has some bugs OR &gt;turns out the person compiled the thing with BSD make instead of gmake

Always use gmake.