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c90f6e51094a1ba4fb2aab35b78f23b6fda645d0 guix: Consistently use gcc-8 for $HOST (Carl Dong) Pull request description: Only non-base commit is the last commit:b5abb07d0dRight now, here's what we use in Gitian: - Linux: Focal's [`g++-8-<arch>-linux-gnu`](https://packages.ubuntu.com/focal/g++-8-aarch64-linux-gnu) (`8.4.0-3ubuntu1cross1`) - MinGW-w64: Focal's [`g++-mingw-w64`](https://packages.ubuntu.com/focal/g++-mingw-w64) (`9.3.0-7ubuntu1+22~exp1ubuntu4`) In Guix right now we use `gcc-9` across the board. I think it makes more sense to use `gcc-8` across the board, as it doesn't suffer from the `memcmp` bug, and is what debian buster (stable) does, meaning it will be well tested ([`g++-mingw-w64`](https://packages.debian.org/buster/g++-mingw-w64), [`g++-aarch64-linux-gnu`](https://packages.debian.org/buster/g++-aarch64-linux-gnu)). We can accomplish this somewhat easily using Guix as we have tighter control over the toolchain (see:b5abb07d0d). Let me know your thoughts! ACKs for top commit: MarcoFalke: Approach ACK c90f6e51094a1ba4fb2aab35b78f23b6fda645d0, haven't reviewed laanwj: Code review ACK c90f6e51094a1ba4fb2aab35b78f23b6fda645d0 hebasto: ACK c90f6e51094a1ba4fb2aab35b78f23b6fda645d0, I have reviewed the code and it looks OK, I agree it can be merged. Tree-SHA512: 3e5b9297305232273323aa745ec417ed1be2418ead0e432db7742f5d5f45efe6e4a2ed44328731512cff4bfde80e5f2dc350a131b8b8fb9207a2ef66bce27ed2
Bitcoin Core integration/staging tree
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.