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MarcoFalke 18cf1c5165
Merge bitcoin/bitcoin#21991: build: libevent 2.1.12-stable 
f152c1ac66 build: libevent 2.1.12-stable (fanquake)

Pull request description:

  Start using [libevent 2.1.12-stable](https://github.com/libevent/libevent/releases/tag/release-2.1.12-stable) in depends. Changelog is available here: https://raw.githubusercontent.com/libevent/libevent/release-2.1.12-stable/ChangeLog. This release basically only contains bug fixes.

  Upgrading will also prevent some oss-fuzz reports which are coming from libevent code, such as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34355 & https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34412.

  Guix builds:
  ```bash
  aa365feab851d2055c4c3cd787fc1db972a8f2efe1e7c75bc62b34594846a021  guix-build-f152c1ac66bf/output/aarch64-linux-gnu/bitcoin-f152c1ac66bf-aarch64-linux-gnu-debug.tar.gz
  80cf96c4618279f4420b3f15ce3d3331937506e7996d8c325ce741f4da431fad  guix-build-f152c1ac66bf/output/aarch64-linux-gnu/bitcoin-f152c1ac66bf-aarch64-linux-gnu.tar.gz
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/aarch64-linux-gnu/inputs.SHA256SUMS
  b6261b19ed8f55e655122d515a4f76a984e1f74f932630ce40ca34bb76fadfc6  guix-build-f152c1ac66bf/output/arm-linux-gnueabihf/bitcoin-f152c1ac66bf-arm-linux-gnueabihf-debug.tar.gz
  be1018237e5e739a742f777efdbdd28ff794cfc2faa39930d5da6dfcfa620da3  guix-build-f152c1ac66bf/output/arm-linux-gnueabihf/bitcoin-f152c1ac66bf-arm-linux-gnueabihf.tar.gz
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/arm-linux-gnueabihf/inputs.SHA256SUMS
  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  guix-build-f152c1ac66bf/output/dist-archive/SKIPATTEST.TAG
  52fa25961965b53e73319f5f8ba5a62f789b56ff3a07286ed5fe88771c2674bf  guix-build-f152c1ac66bf/output/dist-archive/bitcoin-f152c1ac66bf.tar.gz
  069dfc72b83527722552d12db86f3f7046be9a85d0ccc5168c71af0d38dbc9a9  guix-build-f152c1ac66bf/output/powerpc64-linux-gnu/bitcoin-f152c1ac66bf-powerpc64-linux-gnu-debug.tar.gz
  dba47d56dccdd4183762f888ab2e64bf8c074a6873dcf6dac663f88633932926  guix-build-f152c1ac66bf/output/powerpc64-linux-gnu/bitcoin-f152c1ac66bf-powerpc64-linux-gnu.tar.gz
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/powerpc64-linux-gnu/inputs.SHA256SUMS
  e43e2c631ed0dd587a52705b36e5e69e9e622d493eb6741d438976197a1416f2  guix-build-f152c1ac66bf/output/powerpc64le-linux-gnu/bitcoin-f152c1ac66bf-powerpc64le-linux-gnu-debug.tar.gz
  f47f006c68262e3cd30acc355478d4ea056bb1c055bc51c5adab56305c260725  guix-build-f152c1ac66bf/output/powerpc64le-linux-gnu/bitcoin-f152c1ac66bf-powerpc64le-linux-gnu.tar.gz
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/powerpc64le-linux-gnu/inputs.SHA256SUMS
  f62805fd8652e28d935da14b0328f62a583be24b5517a5c7f189970bdd3c6eb0  guix-build-f152c1ac66bf/output/riscv64-linux-gnu/bitcoin-f152c1ac66bf-riscv64-linux-gnu-debug.tar.gz
  db16cbddfc790798af8617213cc726002545f05cfb90ec00e462ba5d3aca10b1  guix-build-f152c1ac66bf/output/riscv64-linux-gnu/bitcoin-f152c1ac66bf-riscv64-linux-gnu.tar.gz
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/riscv64-linux-gnu/inputs.SHA256SUMS
  2c1afbc6ea44e5947ffcbdf031233f03f7a63b93ca08ddfec2c45c661c1666bc  guix-build-f152c1ac66bf/output/x86_64-apple-darwin18/bitcoin-f152c1ac66bf-osx-unsigned.dmg
  65cff5a1bc7eb411b1bb26eb407c2a944e5bf24b08cfcd7a9eeea47924106ac8  guix-build-f152c1ac66bf/output/x86_64-apple-darwin18/bitcoin-f152c1ac66bf-osx-unsigned.tar.gz
  98a5c002aed8a35912853cca5e5ffd7afc91eb839b81ca8bc73ddf010839e3ac  guix-build-f152c1ac66bf/output/x86_64-apple-darwin18/bitcoin-f152c1ac66bf-osx64.tar.gz
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/x86_64-apple-darwin18/inputs.SHA256SUMS
  84e3188d369aae01a459b477e1935a9466338bb9ea6d4beb93675275a5ac62fd  guix-build-f152c1ac66bf/output/x86_64-linux-gnu/bitcoin-f152c1ac66bf-x86_64-linux-gnu-debug.tar.gz
  ea3f4d928f82ea3d1079be3d4e020349e9d412c621149656ea409a61de906c4c  guix-build-f152c1ac66bf/output/x86_64-linux-gnu/bitcoin-f152c1ac66bf-x86_64-linux-gnu.tar.gz
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/x86_64-linux-gnu/inputs.SHA256SUMS
  6dc14c4e1d0b353b865a9f807dafe7ec56e829a8bc104a5ac6ef331bdc9bc726  guix-build-f152c1ac66bf/output/x86_64-w64-mingw32/bitcoin-f152c1ac66bf-win-unsigned.tar.gz
  bd382152587c2dc5816d615d71e36df80f54eac5b4913569148e44117b80517c  guix-build-f152c1ac66bf/output/x86_64-w64-mingw32/bitcoin-f152c1ac66bf-win64-debug.zip
  d2f38b52ea54e913ccadbda6c264a258ca9a55b40a8af96ab8123e8311170aef  guix-build-f152c1ac66bf/output/x86_64-w64-mingw32/bitcoin-f152c1ac66bf-win64-setup-unsigned.exe
  8846b6edcdb0b3c29bdbab08b3582ee13b4877724bf3811246360b14b73ae420  guix-build-f152c1ac66bf/output/x86_64-w64-mingw32/bitcoin-f152c1ac66bf-win64.zip
  53db9e6b78fa13e0753cab4a35da5e66156c54485020c6c49b1cd1ab406e978b  guix-build-f152c1ac66bf/output/x86_64-w64-mingw32/inputs.SHA256SUMS
  ```

  Gitian builds:
  ```bash
  # macOS:
  19401d11d0eda5cdcbab8c1353f7110963288e5223fd95d8cc3380107b66a7e4  bitcoin-f152c1ac66bf-osx-unsigned.dmg
  3eb2383c5af734a86eaf1895f261c1ba5fddc130d9682857eff08fa7d0599e93  bitcoin-f152c1ac66bf-osx-unsigned.tar.gz
  c2572b6f17613a380cf95417ed6a533d8f75fb1418428e234cb90cc0d3d5a655  bitcoin-f152c1ac66bf-osx64.tar.gz
  52fa25961965b53e73319f5f8ba5a62f789b56ff3a07286ed5fe88771c2674bf  src/bitcoin-f152c1ac66bf.tar.gz
  4bcf84076345c61736c63f33e6f9db57b626030c417c2a1b668752d5f87dab22  bitcoin-core-osx-22-res.yml

  # Windows:
  5857fda233fc9fdb04391bd1718522b774978d093912650d4dc6e49b70dde40b  bitcoin-f152c1ac66bf-win-unsigned.tar.gz
  beff745cde9f19d3d619c3c360a9eb37dbe94169cbc968ac7958e80521584787  bitcoin-f152c1ac66bf-win64-debug.zip
  e92010f76d8b286e291c4420349018029e72013ae8bf5b98eccfbf9f856a1490  bitcoin-f152c1ac66bf-win64-setup-unsigned.exe
  46c38498fb16e5353de24caffd11d00b23162ec92f126de57888b4f92f375d79  bitcoin-f152c1ac66bf-win64.zip
  52fa25961965b53e73319f5f8ba5a62f789b56ff3a07286ed5fe88771c2674bf  src/bitcoin-f152c1ac66bf.tar.gz
  851ebc1f3028ec421d733a15acf7514474a44837b75e2f94c1f80ab383b1a364  bitcoin-core-win-22-res.yml

  # Linux:
  4270014b016a309b6ccff39cf87b90f3b5a36a10eab5d2c41697b12b9eb5e63e  bitcoin-f152c1ac66bf-aarch64-linux-gnu-debug.tar.gz
  f226aaeb9cf7786fa5f4dc379611c8b1b3b580df503f79905158d0e2271c3862  bitcoin-f152c1ac66bf-aarch64-linux-gnu.tar.gz
  4cd6208dc30c15b71d80d9cd59d367aba676934609d59581c8f418f9e864994d  bitcoin-f152c1ac66bf-arm-linux-gnueabihf-debug.tar.gz
  21746b2bbf4fd6778ea0357271f569975029667dea2ad0000abb6751eeba8071  bitcoin-f152c1ac66bf-arm-linux-gnueabihf.tar.gz
  d73e6b2a779061037eaa3174615a7e5bb6082056ee4dc13de4026cc3ad21f3c5  bitcoin-f152c1ac66bf-powerpc64-linux-gnu-debug.tar.gz
  e6c5876dcdd30b8936b957afc8adb9341c64a1201ba8c4285f5f76bc37689c7c  bitcoin-f152c1ac66bf-powerpc64-linux-gnu.tar.gz
  fc0270f7c220519e91ecd27c37df7ec130e16db8508e51b52eb88eae1f0d05d2  bitcoin-f152c1ac66bf-powerpc64le-linux-gnu-debug.tar.gz
  3729a36717f704a6e30a0368a68d2356ec9af240b706a7a8c117f7ebcc5ebbca  bitcoin-f152c1ac66bf-powerpc64le-linux-gnu.tar.gz
  b661fc47dbf4a56cecfe02abfff78644524cd6d94aac51a38d83a4ba96a21b6e  bitcoin-f152c1ac66bf-riscv64-linux-gnu-debug.tar.gz
  8934ae4727e7908f626d2392877cad153696c6d8e832a9dbc0960e090f633ab4  bitcoin-f152c1ac66bf-riscv64-linux-gnu.tar.gz
  cc8511b71c89575f15cfbb360c18c0af298869fd4e8c4a27ef2c04b6bc0f0703  bitcoin-f152c1ac66bf-x86_64-linux-gnu-debug.tar.gz
  1cfb8cf750ca7af47cbab00d8eaee336fb11c22756a62b26b5c9a1263b5b0cd4  bitcoin-f152c1ac66bf-x86_64-linux-gnu.tar.gz
  52fa25961965b53e73319f5f8ba5a62f789b56ff3a07286ed5fe88771c2674bf  src/bitcoin-f152c1ac66bf.tar.gz
  3b5053c7392a1a6264f3d192136e50fc9db969834d9d3643d860a3f0e2f79535  bitcoin-core-linux-22-res.yml
  ```

ACKs for top commit:
  practicalswift:
    ~~cr ACK f152c1ac66: patch looks correct and this should resolve the OSS-Fuzz issues~~ ACK temporarily redacted while awaiting non-determinism fix
  MarcoFalke:
    Approach ACK f152c1ac66
  hebasto:
    ~ACK f152c1ac66bfe5c77d947d5c99ce5da3a88797fa~ [retracted due to non-reproducible builds](https://github.com/bitcoin/bitcoin/pull/21991#issuecomment-844005749)

Tree-SHA512: 43253131f6d7fadfcda541e00c13d5e2fd395555563bcc42218ba4657d8f94b09760cbad6b8f0a17e426eed817624b745464d2733f7d5ac00fbb92a6ffadab84
2021-05-21 08:12:35 +02:00
.github doc: Remove label from good first issue template 2020-08-24 09:31:24 +02:00
.tx qt: Bump transifex slug for 22.x 2021-04-21 13:46:41 +02:00
build-aux/m4 build: improve macro for testing -latomic requirement 2021-05-11 20:07:20 +02:00
build_msvc Merge bitcoin/bitcoin#21817: refactor: Replace &foo[0] with foo.data() 2021-05-05 18:24:09 +02:00
ci Merge bitcoin/bitcoin#21749: test: Bump shellcheck version 2021-05-10 13:49:50 +02:00
contrib Merge bitcoin/bitcoin#21889: macho: check for control flow instrumentation 2021-05-14 12:26:38 +02:00
depends build: libevent 2.1.12-stable 2021-05-18 10:19:10 +08:00
doc Merge bitcoin/bitcoin#21991: build: libevent 2.1.12-stable 2021-05-21 08:12:35 +02:00
share qt: Extract translations correctly from UTF-8 formatted source 2021-05-17 13:21:13 +02:00
src Merge bitcoin-core/gui#335: test: Use QSignalSpy instead of QEventLoop 2021-05-21 00:02:06 +03:00
test test: improve getnodeaddresses coverage, test by network 2021-05-19 13:06:04 +02:00
.appveyor.yml Update msvc build to use Qt5.12.10 binaries. 2021-04-19 16:41:50 +01:00
.cirrus.yml ci: Bump cirrus fuzz CPUs to avoid timeout 2021-05-12 18:26:37 +02:00
.editorconfig Add EditorConfig file. 2021-02-10 08:00:06 +01:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore build: add *~ to .gitignore 2021-05-12 18:10:47 +02:00
.python-version Bump minimum python version to 3.6 2020-11-09 17:53:47 +10:00
.style.yapf test: .style.yapf: Set column_limit=160 2019-03-04 18:28:13 -05:00
autogen.sh scripted-diff: Bump copyright of files changed in 2019 2019-12-30 10:42:20 +13:00
configure.ac fuzz: Remove unused --enable-danger-fuzz-link-all option 2021-05-08 09:32:45 +02:00
CONTRIBUTING.md doc: Clarify that squashing should happen before review 2021-02-22 09:53:01 +01:00
COPYING doc: Update license year range to 2021 2020-12-30 16:24:47 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am build: Remove spaces from variable-printing rules 2021-04-05 19:13:54 -04:00
README.md doc: Rework internal and external links 2021-02-17 09:18:46 +01:00
REVIEWERS script: update REVIEWERS 2021-05-03 13:16:43 +02:00
SECURITY.md doc: Remove explicit mention of version from SECURITY.md 2019-06-14 06:39:17 -04:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.

Further information about Bitcoin Core is available in the doc folder.

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information read the original Bitcoin whitepaper.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of Bitcoin Core.

The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.