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Merge bitcoin/bitcoin#33555: build: Bump clang minimum supported version to 17

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fa0fa0f700 refactor: Revert "disable self-assign warning for tests" (MarcoFalke)
faed118fb3 build: Bump clang minimum supported version to 17 (MarcoFalke)

Pull request description:

  Most supported operating systems ship with clang-17 (or later), so bump the minimum to that and allow new code to drop workarounds for previous clang bugs.

  (Apart from dropping the small workaround, this bump allows the `ci_native_nowallet_libbitcoinkernel` CI to run on riscv64 without running into an ICE with clang-16.)

  This patch will only be released in version 31.x, next year (2026).

  For reference:

  * https://packages.debian.org/bookworm/clang-19
  * https://packages.ubuntu.com/noble/clang (clang-18)
  * CentOS-like 8/9/10 ship clang-17 (and later) via Stream
  * FreeBSD 12/13 ship clang-17 (and later) via packages
  * OpenSuse Tumbleweed ships with https://software.opensuse.org/package/clang (clang21); No idea about OpenSuse Leap

  On operating systems where the clang version is not shipped by default, the user would have to use GCC, or install clang in a different way. For example:

  * https://packages.debian.org/bookworm/g++ (g++-12)
  * https://packages.ubuntu.com/jammy/g++ (g++-11)
  * https://apt.llvm.org/, or nix, or guix, or compile clang from source, ...

  *Ubuntu 22.04 LTS does not ship with clang-16 (the previous minimum required), nor with clang-17, so one of the above workarounds is needed there.*

  macOS 14 is unaffected, and the previous minimum requirement of Xcode15.0 remains, see also 919e6d01e9/depends/hosts/darwin.mk (L3-L4). (Modulo compiling the fuzz tests, which requires 919e6d01e9/.github/workflows/ci.yml (L149))

ACKs for top commit:
  janb84:
    Concept ACK fa0fa0f700
  l0rinc:
    Code review ACK fa0fa0f700
  hebasto:
    ACK fa0fa0f700.

Tree-SHA512: 5973cec39982f80b8b43e493cde012d9d1ab75a0362300b007d155db9f871c6341e7e209e5e63f0c3ca490136b684683de270136d62cb56f6b00b0ac0331dc36
This commit is contained in:
merge-script
2025-10-29 16:53:42 +00:00
parent 292ea0eb89 fa0fa0f700
commit 72511fd02e
6 changed files with 10 additions and 37 deletions
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2
doc/dependencies.md
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@@ -10,7 +10,7 @@ Bitcoin Core requires one of the following compilers.
| Dependency | Minimum required |
| --- | --- |
| [Clang](https://clang.llvm.org) | [16.0](https://github.com/bitcoin/bitcoin/pull/30263) |
| [Clang](https://clang.llvm.org) | [17.0](https://github.com/bitcoin/bitcoin/pull/33555) |
| [GCC](https://gcc.gnu.org) | [11.1](https://github.com/bitcoin/bitcoin/pull/29091) |
## Required

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doc/release-notes-33555.md Normal file
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@@ -0,0 +1,5 @@
Build System
------------
- The minimum supported Clang compiler version has been raised to 17.0
(#33555).