2e1336dbfe
2f5dfe4a7fdepends: build qt in c++17 mode (fanquake)104e859c97builds: don't pass -silent to qt when building in debug mode (fanquake)e2c500636cdepends: build zeromq with -std=c++17 (fanquake)2374f2fbefdepends: build Boost with -std=c++17 (fanquake)2dde55702ddepends: build bdb with -std=c++17 (fanquake) Pull request description: In packages where we are passing `-std=c++11` switch to `-std=c++17`, or, `-std=c++1z` in the case of Qt. This PR also contains a [commit](104e859c97) that improves debug output when building Qt for debugging (`DEBUG=1`). Now we'll get output like this: ```bash g++ -c -pipe -ffunction-sections -O2 -fPIC -std=c++11 -fno-exceptions <lots more> ../../corelib/kernel/qcoreapplication.cpp ``` rather than just: ```bash compiling ../../corelib/kernel/qcoreapplication.cpp ``` Note that when you look at the DEBUG output for these changes when building Qt, you'll see objects being compiled with a mix of C++11 and C++17. The breakdown is roughly: 1. `qmake` built with `-std=c++11`: ```bash Creating qmake... make[1]: Entering directory '<trim>/qt/5.9.8-4110fa99945/qtbase/qmake' g++ -c -o project.o -std=c++11 -ffunction-sections -O2 -g <trim> <trim>/qt/5.9.8-4110fa99945/qtbase/qmake/project.cpp # when qmake, Qt also builds some of it's corelib, such as corelib/global/qmalloc.cpp g++ -c -o qmalloc.o -std=c++11 -ffunction-sections -O2 -g <trim> <trim>/qt/5.9.8-4110fa99945/qtbase/src/corelib/global/qmalloc.cpp ``` 2. `qmake` is run, and passed our build options, including `-c++std`: ```bash make[1]: Entering directory '<trim>/qt/5.9.8-4110fa99945/qtbase' <trim>qt/5.9.8-4110fa99945/qtbase/bin/qmake -o Makefile qtbase.pro -- -bindir <trim>/native/bin -c++std c++1z -confirm-license <trim> ``` 3. After some cleaning and configuring, we actually start to build Qt, as well as it's tools and internal libs: ```bash Building qt... make[1]: Entering directory '<trim>/qt/5.9.8-4110fa99945/qtbase/src' # build libpng, zlib etc gcc -c -m64 -pipe -pipe -O1 <trim> -o .obj/png.o png.c # build libQt5Bootstrap, using C++11, which again compiles qmalloc.cpp make[2]: Entering directory '<trim>/qt/5.9.8-4110fa99945/qtbase/src/tools/bootstrap' g++ -c -pipe -ffunction-sections -O2 -fPIC -std=c++11 <trim> -o .obj/qmalloc.o ../../corelib/global/qmalloc.cpp # build a bunch of tools like moc, rcc, uic, qfloat16-tables, qdbuscpp2xml, using C++11 g++ -c -pipe -O2 -std=c++11 -fno-exceptions -Wall -W <trim> -o .obj/rcc.o rcc.cpp # from here, Qt is compiled with -std=c++1z, including qmalloc.cpp, for the third and final time: g++ -c -include .pch/Qt5Core <trim> -g -Og -fPIC -std=c++1z -fvisibility=hidden <trim> -o .obj/qmalloc.o global/qmalloc.cpp ``` 4. Finally, build tools like `lrelease`, `lupdate`, etc, but back to using -std=c++11 ```bash make[1]: Entering directory '<trim>/qt/5.9.8-4110fa99945/qttools/src/linguist/lrelease' g++ -c -pipe -O2 -std=c++11 -fno-exceptions -Wall -W <trim> -o .obj/translator.o ../shared/translator.cpp ``` If you dump the debug info from the built Qt libs, they should also tell you that they were compiled with `C++17`: ```bash objdump -g bitcoin/depends/x86_64-pc-linux-gnu/lib/libQt5Core.a GNU C++17 9.3.0 -m64 -mtune=generic -march=x86-64 -g -O1 -Og -std=c++17 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -fasynchronous-unwind-tables -fstack-protector-strong -fstack-clash-protection -fcf-protection ``` ACKs for top commit: laanwj: Code review ACK2f5dfe4a7fpracticalswift: cr ACK2f5dfe4a7f: patch looks correct fjahr: Code review ACK2f5dfe4a7fhebasto: ACK2f5dfe4a7f, I have reviewed the code and it looks OK, I agree it can be merged. Tree-SHA512: fc5e9d7c7518c68349c8228fb1aead829850373efc960c9b8c079096a83d1dad19c62a9730fce5802322bf07e320960fd47851420d429eda0a87c307f4e8b03a
Bitcoin Core integration/staging tree
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, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original 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, that are run automatically on the build server.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The Travis CI system makes 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.
Translators should also subscribe to the mailing list.