libcxx, libtsan, libunwind: fix error reporting

CI: download tarball if not already present on macos runners

update CI tarballs for LLVM 18

libc++: patch tz impl to crash on windows instead of FTBFS

zig cc: -Wno-overriding-t-option was renamed

suppress C++ type-limits warnings

add M68kRTD to clang calling conventions

update detectAMDProcessor to detect znver4

add detect-cpu subcommand for debugging CPU features

libcxx: update to LLVM 18

libcxxabi: update to LLVM 18

libunwind: update to LLVM 18

LLVM 18 uses 16 byte alignment for x86_64 i128

LLVM 18 update: avoid passing vectors sometimes

zig cc: update clang CLI data to LLVM 18

add missing clang static library to the build

LLVM 18 std lib updates and fixes

update CPU features to LLVM 18

update zig_clang C++ API wrapper bindings to LLVM 18

update for LLVM 18 new target data

update C language headers to LLVM 18

llvm-ar patch: update main function

clang patch: update main function

update ar and clang C++ files to LLVM 18

update CMake files to LLVM 18

standalone: support relative cache path

Merge pull request #19826 from jacobly0/outdirarg

cmake: make static curses configurable

fs: handle `OBJECT_NAME_COLLISION` in `makeOpenPath`

InternPool: eliminate `var_args_param_type`

link: restore lost passthrough behavior

introduce std.process.raiseFileDescriptorLimit

add std.Thread.Pool.spawnWg

add std.zip and support zip files in build.zig.zon

Rename Dir.writeFile2 -> Dir.writeFile and update all callsites

Delete compile errors for deprecated decls

lld: use a response file on `NameTooLong`

std.StaticStringMap: bump eval branch quota

Build system: Allow specifying Win32 resource include paths using LazyPath

Change `std.os` to `std.posix` in error messages

LLVM: Fix panic when using tagged union backed by enum with negative values

Sema: Don't generate runtime instructions on zirSplat if dest_ty doesn't have runtime bits

std.tar: fix finding tar root_dir (#19829)

cbe: fix ub with integer `@abs`

std.Build.Step.CheckObject: fix parseDumpNames

C backend: avoid memcpy when len=0

NetBSD: avoid ldd error on executables. zig cc produce 4 PT_LOAD segments,

Merge pull request #19784 from tiehuis/simplify-hash-crc32

test/link/glibc_compat: fix incorrect strlcpy result

Sema+llvm: properly implement `Interrupt` callconv

std.crypto.hash.sha2: cleanup add add more docs (#19744)

Fix ELF alignment for freestanding targets (#19766)

std.posix.iovec: use .base and .len instead of .iov_base and .iov_len

LLVM: Remove deprecated or soon to be deprecated constant expressions

fix: object size error in archive

migrate langref documentation generation to the build system

Merge pull request #19698 from squeek502/windows-batbadbut

windows.GetFinalPathNameByHandle: Support volumes mounted as paths

Clarify the blocking behavior of `RwLock.lockShared()`. (#19752)

Update fmt.zig tests

std.zig.system: fix ELF file search

std.crypto: make ff.ct_unprotected.limbsCmpLt compile (#19741)

error on `undefined` end index

std.Build: Install Windows DLLs to `<prefix>/bin/` by default

std.meta: give TagPayloadByName unreachable a better @compileError message

ComptimeStringMap: return a regular struct and optimize

Fix WASI threads, again

x86_64: fix C abi for unions

link/macho: make --verbose-link represent the actual linker line

link/macho: introduce Atom extras for out-of-band data

Merge pull request #19714 from ziglang/elf-merge-strings

Merge pull request #19710 from jacobly0/elf-segment-align

Fix usage of `unexpectedErrno`

update list of missing features in no-LLVM built zig2

Rename der_encoded_max_length to der_encoded_length_max

std.fs.Dir.openDir: use wasi libc API when -lc

Revert "disable flaky std.fs test"

disable RISC-V CI testing due to LLVM's O(N^2) codegen

disable flaky std.fs test

start the 0.13.0 release cycle

Release 0.12.0

std: fix Thread.Pool.spawn

update .mailmap

llvm: fix debug info when running tests

define std.crypto.sha2.Sha512224 (#19697)

The Mach-O header flags gained two new members at some point, and these are missing in the Zig std library. This PR adds these.

std.fs.Dir.openFile: use wasi libc API when -lc

Merge pull request #19689 from nektro/nektro-patch-29794

Merge pull request #19649 from ziglang/x86_64-windows-ci

cmake: support setting the dynamic linker

std.Build: revert --host-target, --host-cpu, --host-dynamic-linker

Sema: cap depth of value printing in type names

Sema: correctly make inferred allocs constant

std.zig.system.linux: Use arm.zig detection for AArch64 CPU features

Merge pull request #19630 from mlugg/comptime-ptr-access-5

x86_64: fix miscompilation regression in package fetching code

Merge pull request #19654 from jacobly0/wasi-ver

Merge pull request #19655 from squeek502/windows-argv-post-2008

std: improve std.once tests

lib/std/Build/Step/CheckObject: dump section as string