242b0ebb5c btcsignals: use a single shared_ptr for liveness and callback (Cory Fields)
b12f43a0a8 signals: remove boost::signals2 from depends and vcpkg (Cory Fields)
a4b1607983 signals: remove boost::signals2 mentions in linters and docs (Cory Fields)
375397ebd9 signals: remove boost includes where possible (Cory Fields)
091736a153 signals: re-add forward-declares to interface headers (Cory Fields)
9958f4fe49 Revert "signals: Temporarily add boost headers to bitcoind and bitcoin-node builds" (Cory Fields)
34eabd77a2 signals: remove boost compatibility guards (Cory Fields)
e60a0b9a22 signals: Add a simplified boost-compatible implementation (Cory Fields)
63c68e2a3f signals: add signals tests (Cory Fields)
edc2978058 signals: use an alias for the boost::signals2 namespace (Cory Fields)
9ade3929aa signals: remove forward-declare for signals (Cory Fields)
037e58b57b signals: use forwarding header for boost signals (Cory Fields)
2150153f37 signals: Temporarily add boost headers to bitcoind and bitcoin-node builds (Cory Fields)
fd5e9d9904 signals: Use a lambda to avoid connecting a signal to another signal (Cory Fields)
Pull request description:
This drops our dependency on `boost::signals2`, leaving `boost::multi_index` as the only remaining boost dependency for bitcoind.
`boost::signals2` is a complex beast, but we only use a small portion of it. Namely: it's a way for multiple subscribers to connect to the same event, and the ability to later disconnect individual subscribers from that event.
`btcsignals` adheres to the subset of the `boost::signals2` API that we currently use, and thus is a drop-in replacement. Rather than implementing a complex `slot` tracking class that we never used anyway (and which was much more useful in the days before std::function existed), callbacks are simply wrapped directly in `std::function`s.
The new tests work with either `boost::signals2` or the new `btcsignals` implementation. Reviewers can verify
functional equivalency by running the tests in the commit that introduces them against `boost::signals2`, then again with `btcsignals`.
The majority of the commits in this PR are preparation and cleanup. Once `boost::signals2` is no longer needed, it is removed from depends. Additionally, a few CMake targets no longer need boost includes as they were previously only required for signals.
I think this is actually pretty straightforward to review. I kept things simple, including keeping types unmovable/uncopyable where possible rather than trying to define those semantics. In doing so, the new implementation has even fewer type requirements than boost, which I believe is due to a boost bug. I've opened a PR upstream for that to attempt to maintain parity between the implementations.
See individual commits for more details.
Closes#26442.
ACKs for top commit:
fjahr:
Code review ACK 242b0ebb5c
maflcko:
re-review ACK 242b0ebb5c🎯
w0xlt:
reACK 242b0ebb5c
Tree-SHA512: 9a472afa4f655624fa44493774a63b57509ad30fb61bf1d89b6d0b52000cb9a1409a5b8d515a99c76e0b26b2437c30508206c29a7dd44ea96eb1979d572cd4d4
1. Use `build_os` instead of `host_os` for native packages.
2. `XCODE_VERSION` is available only for `darwin` hosts. Therefore,
simply disable the Xcode version check for `native_qt`.
0ebc6891e2 depends: delete Boost extra files (fanquake)
168997e9b5 depends: disable Qt sbom generation (fanquake)
Pull request description:
1 followup to #34650, to disable sbom generation.
1 commit to Boost, to cleanup `.natvis` files that end up in share.
ACKs for top commit:
hebasto:
ACK 0ebc6891e2, tested on Ubuntu 25.10.
Tree-SHA512: 728b51d798a30c54df915564446a7a8648eb4fc27adb8c18b8202df506e2ff61e74516cfe4d6af1af72279255fc75fe14cb43403632a978637781d59eb11fc0f
0a6724aaae doc: Update Windows build notes (Hennadii Stepanov)
473e5f8efc qt: Add patch to fix SFINAE warnings in QAnyStringView with gcc16 (Hennadii Stepanov)
3cb4d6066b qt: add patches to fix SFINAE errors/warnings with gcc16 (Cory Fields)
d7e972a90d qt: add patch to fix build with gcc16 (Cory Fields)
19693a8c91 depends: Update Qt to 6.8.3 (Hennadii Stepanov)
c55584575a cmake: Fix `FindQt` module (Hennadii Stepanov)
Pull request description:
This PR updates the `qt` package in depends to the latest open-source [6.8.3](https://www.qt.io/blog/qt-6.8.3-released) LTS release.
The update includes numerous bugfixes, which allows us to drop `qtbase_plugins_windows11style.patch`.
Additionally, it includes [patches](https://github.com/bitcoin/bitcoin/issues/34569#issuecomment-3892793262) for compatibility with GCC 16 (along with one extra patch), and incorporates a [commit](8f1b55d1d5) from https://github.com/bitcoin/bitcoin/pull/32709.
Closes https://github.com/bitcoin/bitcoin/issues/34569.
ACKs for top commit:
achow101:
ACK 0a6724aaae
sedited:
ACK 0a6724aaae
Tree-SHA512: b66fe6f75bae00fb5c525c5fad56d39273f53f6bfd58206da8a55c6e41d14533137c72fb03e9537ba3a3d0b3463b6dcbef6a88ac2f4559fa6e9abf045fe1beaa
41e657aacf guix: add bitcoin-qt runtime libs doc in symbol-check (fanquake)
ef4ce19a15 depends: freetype 2.11.1 (fanquake)
Pull request description:
Update freetype to `2.11.1`.
Updating fontconfig (currently `2.12.6`) to `2.13.1` requires what looks like a hard dep on gperf; leaving that as-is for now.
Document expectations in `symbol-check.py`.
Closes#29977 (changes are based on discussion there).
ACKs for top commit:
sedited:
ACK 41e657aacf
Tree-SHA512: 71c4ccc442df0b90bebc475003eb325564111b8312c42bc7d7a9c81a2fc166fdc0814c9ddde3cfe562c3c835556e7f97107458b02a07b981b1a199bf65d5ac1d
