x86_64-netbsd-none

[lun-4]

• LLVM13's clang fails to build on NetBSD 9.0.
• The error was pinned down to NetBSD's libstdc++ not providing std::errc::state_not_recoverable.
  • https://github.com/llvm/llvm-project/blob/f4f9ad0f5d8e8994c677c3712dff7585bf8bd963/clang/lib/Interpreter/IncrementalParser.cpp#L56
• NetBSD 10 will have the relevant enum value.
• However, NetBSD 9 will still be supported for a long time, which means a patch to LLVM.

[alarixnia]

In my opinion, LLVM is using the wrong error code here.

POSIX sez "ENOTRECOVERABLE - State not recoverable. The state protected by a robust mutex is not recoverable."

The LLVM code in question is completely unrelated to mutexes.

If I had to use an errno code here, I'd use ENOTSUP (std::errc::not_supported).

[0-wiz-0]

I had already filed a bug report about this upstream - please provide your suggestion there. That'll also show that more than one person is interested in this :) Thanks.
https://bugs.llvm.org/show_bug.cgi?id=52587

[lun-4]

Making sure we can reference the correct upstream issue after LLVM's Bugzilla migration: llvm/llvm-project#51929

[alexrp]

Is this still a problem?

[lun-4]

got around to upgrading my development VM to netbsd10, and llvm-host now builds without issue! (netbsd9 is still supported by netbsd but I think we can leave that out of the zig support tier matrix..) problem now is that build-zig-host's process segfaults. will have to investigate further later, but here's the stack from lldb

Process 15831 launched: '/home/luna/zig-bootstrap/out/build-zig-host/zig2' (x86_64)
Process 15831 stopped
* thread #1, stop reason = signal SIGSEGV: address not mapped to object (fault address: 0x7f7fff10eff8)
    frame #0: 0x000000000082ae80 zig2`InternPool_Local_List_28InternPool_Item_29_view__17671 + 50
zig2`InternPool_Local_List_28InternPool_Item_29_view__17671:
->  0x82ae80 <+50>: callq  0xc1d2bd                  ; InternPool_Local_List_28InternPool_Item_29_header__17670
    0x82ae85 <+55>: movq   %rax, -0x10(%rbp)
    0x82ae89 <+59>: movq   -0x10(%rbp), %rax
    0x82ae8d <+63>: movq   %rax, -0x18(%rbp)