We don't do this for any other dependency, and users are better looking
at the actual Boost site/docs. This isn't something we should need to
have in our build docs.
78e36700a0 doc: remove mention of system univalue (fanquake)
Pull request description:
Should have been part of #22646.
ACKs for top commit:
hebasto:
ACK 78e36700a0
Tree-SHA512: a5d54d73526033825ce4467cc3c57c26064739eef546556975a4c6f1f5bea84004640acd426734f90f98bc7a76ec837d716aa31167f2bdce7ee3887ad92e3152
This updates build-unix for the descriptor wallet, and prepares for
eventual legacy wallet deprecation.
- Move 'descriptor wallet' dependencies above legacy wallet deps both
for Debian and Fedora.
- Explicitly mention 'legacy wallet' where referring to the BerkeleyDB
wallet. Shorten BerkeleyDB instruction to a single paragraph.
This package is currently installed as a side-effect of installing our
other libboost-*-dev packages. However as those continue to dissapear,
it makes sense to install boost dev explicitly.
060a2a64d4 ci: remove boost thread installation (fanquake)
06e1d7d81d build: don't build or use Boost Thread (fanquake)
7097add83c refactor: replace Boost shared_mutex with std shared_mutex in sigcache (fanquake)
8e55981ef8 refactor: replace Boost shared_mutex with std shared_mutex in cuckoocache tests (fanquake)
Pull request description:
This replaces `boost::shared_mutex` and `boost::unique_lock` with [`std::shared_mutex`](https://en.cppreference.com/w/cpp/thread/shared_mutex) & [`std::unique_lock`](https://en.cppreference.com/w/cpp/thread/unique_lock).
Even though [some concerns were raised](https://github.com/bitcoin/bitcoin/issues/16684#issuecomment-726214696) in #16684 with regard to `std::shared_mutex` being unsafe to use across some glibc versions, I still think this change is an improvement. As I mentioned in #21022, I also think trying to restrict standard library feature usage based on bugs in glibc is not only hard to do, but it's not currently clear exactly how we do that in practice (does it also extend to patching out use in our dependencies, should we be implementing more runtime checks for features we are using, when do we consider an affected glibc "old enough" not to worry about? etc). If you take a look through the [glibc bug tracker](https://sourceware.org/bugzilla/describecomponents.cgi?product=glibc) you'll no doubt find plenty of (active) bug reports for standard library code we already using. Obviously not to say we shouldn't try and avoid buggy code where possible.
Two other points:
[Cory mentioned in #21022](https://github.com/bitcoin/bitcoin/pull/21022#issuecomment-769274179):
> It also seems reasonable to me to worry that boost hits the same underlying glibc bug, and we've just not happened to trigger the right conditions yet.
Moving away from Boost to the standard library also removes the potential for differences related to Boosts configuration. Boost has multiple versions of `shared_mutex`, and what you end up using, and what it's backed by depends on:
* The version of Boost.
* The platform you're building for.
* Which version of `BOOST_THREAD_VERSION` is defined: (2,3,4 or 5) default=2. (see [here](https://www.boost.org/doc/libs/1_70_0/doc/html/thread/build.html#thread.build.configuration) for some of the differences).
* Is `BOOST_THREAD_V2_SHARED_MUTEX` defined? (not by default). If so, you might get the ["less performant, but more robust"](https://github.com/boostorg/thread/issues/230#issuecomment-475937761) version of `shared_mutex`.
A lot of these factors are eliminated by our use of depends, but users will have varying configurations. It's also not inconceivable to think that a distro, or some package manager might start defining something like `BOOST_THREAD_VERSION=3`. Boost tried to change the default from 2 to 3 at one point.
With this change, we no longer use Boost Thread, so this PR also removes it from depends, the build system, CI etc.
Previous similar PRs were #19183 & #20922. The authors are included in the commits here.
Also related to #21022 - pthread sanity checking.
ACKs for top commit:
laanwj:
Code review ACK 060a2a64d4
vasild:
ACK 060a2a64d4
Tree-SHA512: 572d14d8c9de20bc434511f20d3f431836393ff915b2fe9de5a47a02dca76805ad5c3fc4cceecb4cd43f3ba939a0508178c4e60e62abdbaaa6b3e8db20b75b03
fa7789f731 doc: Mention other ways to conserve memory on compilation (MarcoFalke)
Pull request description:
Related to:
* Building requires >1GB memory #6658
ACKs for top commit:
instagibbs:
ACK fa7789f731
kristapsk:
ACK fa7789f731
Tree-SHA512: 828593de9cfa9f9027c6c8e97abe95e3fad9f2ff50e6512808a8950de4a1f9ea901e724edfb96d7119224c3e38a136e60cb798b34ef682c585a7951e02124a3a
fad95e8da6 doc: Split build linux dependencies (MarcoFalke)
0000009015 doc: Split depends installation instructions per arch (MarcoFalke)
Pull request description:
The current depends installation instructions fail on bionic with
```
E: Unable to locate package g++-4.8-aarch64-linux-gnu
E: Unable to locate package gcc-4.8-aarch64-linux-gnu
E: Unable to locate package g++-4.8-arm-linux-gnueabihf
E: Unable to locate package gcc-4.8-arm-linux-gnueabihf
```
Also, they fail due to missing dependencies `make automake cmake pkg-config python3`
Fix this by removing the explicit version and splitting them into common instructions and instructions per linux architecture.
Tree-SHA512: 25d5efa7450a0b1bbd569f431158f5a25bf4fe34f6adc32ebdfd6b6db9447ce083f555f20ff5b9f7c458864986c15d65219a31a1cd2b18bad9965ece2ea5e3be
af6ac3b677 doc: Remove mention of Qt4 from build docs (Wladimir J. van der Laan)
462c71f71b test: Update travis to not test Qt4 anymore (Wladimir J. van der Laan)
907f73bbc5 gui: Remove QT_VERSION fallbacks for Qt < 5 (Wladimir J. van der Laan)
bad068ad9f build: Build system changes to support only Qt5 (Wladimir J. van der Laan)
Pull request description:
Implements #8263.
Qt4.x has been EOL since 2015, and at least Gentoo has, or is going to drop support for it. I wouldn't be surprised if other Linux distributions follow.
This removes Qt4 detection from the build system, as well as removes all Qt4 fallbacks from the code. Turns out there's more than I expected: this is going to make maintenance of the GUI code, as well as adding new features significantly easier.
(I know there's still some references left to qt4 in RPM and Debian build script, but I don't have the knowledge how to fix them)
Tree-SHA512: d495924fd4dda6f6566ba44ee96be7cbe62e69ba1ca993b80a8449f78da852b7f1bd3e8200d57cfa1d72233c340eeff4596fb0032ecbddc715d99aea63817d3f
docs: Linked to the 'Building on FreeBSD' section of the Unix guide where it lists BSD specific guides.
Created a FreeBSD build guide (doc/build-freebsd.md).
Added in warning about the version of 'gdb' installed by default.
Removed the FreeBSD build instructions now that they have their own guide (doc/build-freebsd.md).
Updated the sentence to refer to the BSD guides in the 'doc' directory for more specific BSD build instructions.
Minor grammatical fix.
fanquake