Clarify that supported versions of GCC are not affected, and that Clang
prior to version 15 still requires the explicit -latomic linking, when
compiling for 32-bit.
Our usage of std::atomic is with it's own exchange function, not
std::atomic_exchange. So we should be looking specifically for that
function.
Additionally, -pthread and -lpthread have an effect on whether -latomic
will be needed, so the atomics check needs to use these flags as well.
This will make the flags in use better match what is actually used when
linking.
This removes the need for -latomic for riscv builds, which resolves a
guix cross architecture reproducibility issue.
Variables that are declared with AC_ARG_VAR macro are substituted via
AC_SUBST macro.
PKG_CHECK_MODULES macro already has AC_ARG_VAR(${PACKAGE}_CFLAGS) and
AC_ARG_VAR(${PACKAGE}_LIBS).
d796091b04 build: Bump AX_PTHREAD macro to the latest version (Hennadii Stepanov)
Pull request description:
This PR silents autoconf >2.69 (this [one](https://formulae.brew.sh/formula/autoconf), for instance) warnings about the obsolete `$as_echo`:
```
% ./autogen.sh
...
configure.ac:847: warning: $as_echo is obsolete; use AS_ECHO(["message"]) instead
lib/m4sugar/m4sh.m4:692: _AS_IF_ELSE is expanded from...
lib/m4sugar/m4sh.m4:699: AS_IF is expanded from...
./lib/autoconf/general.m4:2249: AC_CACHE_VAL is expanded from...
./lib/autoconf/general.m4:2270: AC_CACHE_CHECK is expanded from...
build-aux/m4/ax_pthread.m4:89: AX_PTHREAD is expanded from...
configure.ac:847: the top level
...
```
No other behavior changes.
ACKs for top commit:
fanquake:
ACK d796091b04 - matches upstream at serial 31.
Tree-SHA512: aa9b60698f453427221444a5a63420d833c4c5dd23f8b0c74e5bd4639daec9c6cff0907a5281c00103ccb030e394998cf05653be750d4a3bf0f37ca41ff6fbe1
Very old shells suffered from bugs which meant that prefixing variables
with an "x" to ensure that the lefthand side of a comparison always
started with an alphanumeric character was needed. Modern shells don't
suffer from this issue (i.e Bash was fixed in 1996).
In any case, we've already got unprefixed checks used in our codebase,
i.e https://github.com/bitcoin/bitcoin/blob/master/configure.ac#L292,
and have dependencies (in depends) that also use unprefixed comparisons.
I think it's time that we can consolidate on not using the x-prefix
workaround. At best it's mostly just confusing.
More info:
https://github.com/koalaman/shellcheck/wiki/SC2268https://www.vidarholen.net/contents/blog/?p=1035
Inline with moving to descriptor (sqlite) wallets by default for 0.23,
this adapts the build system so that a default `./configure` invocation
no-longer fails if BDB isn't present. Currently, if configure is run
with no options, and no BDB is present, we'll fail with:
```bash
checking for Berkeley DB C++ headers... no
configure: error: libdb_cxx headers missing, Bitcoin Core requires this library for BDB wallet support (--without-bdb to disable BDB wallet support)
```
If descriptor wallets are to be the default, this behaviour no longer
makes sense, as a builder should be able to configure and build, to use
a wallet, without BDB installed, and without passing additional
arguments, i.e `--without-bdb` or `--with-incompatible-bdb`, to
configure.
With this change, running configure will no-longer fail, and will
instead print:
```bash
checking for Berkeley DB C++ headers... no
configure: WARNING: libdb_cxx headers missing
configure: WARNING: Bitcoin Core requires this library for BDB (legacy) wallet support
configure: WARNING: Passing --without-bdb will suppress this warning
checking for sqlite3 >= 3.7.17... yes
checking whether to build wallet with support for sqlite... yes
```
e4c8bb62e4 build: Fix undefined reference to __mulodi4 (Hennadii Stepanov)
Pull request description:
When compiling with clang on 32-bit systems the `__mulodi4` symbol is defined in compiler-rt only.
Fixes#21294.
See more:
- https://bugs.llvm.org/show_bug.cgi?id=16404
- https://bugs.llvm.org/show_bug.cgi?id=28629
ACKs for top commit:
MarcoFalke:
tested-only ACK e4c8bb62e4
luke-jr:
utACK e4c8bb62e4
fanquake:
ACK e4c8bb62e4 - it's a bit of an awkward workaround to carry, but at-least it's contained to the fuzzers.
Tree-SHA512: 93edb4ed568027702b1b9aba953ad50889b834ef97fde3cb99d1ce70076d9c00aa13f95c86b12d6f59b24fa90108d93742f920e15119901a2848fb337ab859a1
ab86ac7739 build, qt: Make QWindowsVistaStylePlugin available again (regression) (Hennadii Stepanov)
Pull request description:
This PR is similar to 1be8e0f238, and, actually, it is a #21376 follow up.
Required as in Qt 5.12.x style plugins are separated.
Fixes#22132.
Fixes https://github.com/bitcoin-core/gui/issues/303.
**Note for reviewers**. Besides visual changes in the GUI, you could compare the first dozen of lines in the `debug.log` file.
---
#### Guix build:
```
$ HOSTS=x86_64-w64-mingw32 contrib/guix/guix-build
$ find guix-build-$(git rev-parse --short=12 HEAD)/output/ -type f -print0 | env LC_ALL=C sort -z | xargs -r0 sha256sum
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 guix-build-ab86ac7739b2/output/dist-archive/SKIPATTEST.TAG
d3f05888c95d6cf6f4a0bac952d4c0bf1e271f49cb7ab92b08080b753957e5e5 guix-build-ab86ac7739b2/output/dist-archive/bitcoin-ab86ac7739b2.tar.gz
113bb86ffd2854e08d3c0c5cd3f9728f2e4fe6c7a1813bc1c4b73eb48ad6597f guix-build-ab86ac7739b2/output/x86_64-w64-mingw32/bitcoin-ab86ac7739b2-win-unsigned.tar.gz
3fdc99754d6f26d9655a308c8847076d8fd4db8d61f4f18d8ef545894a42c10d guix-build-ab86ac7739b2/output/x86_64-w64-mingw32/bitcoin-ab86ac7739b2-win64-debug.zip
932bb69e3eb1a617f9e337b83220c9d6a277bec421f4d78e32dffde5643eb00c guix-build-ab86ac7739b2/output/x86_64-w64-mingw32/bitcoin-ab86ac7739b2-win64-setup-unsigned.exe
852f4c03ad049fcd6bb2ce25b3bcf4e18b90d34f7232660024b341bd7c8dd710 guix-build-ab86ac7739b2/output/x86_64-w64-mingw32/bitcoin-ab86ac7739b2-win64.zip
c6a33a193a6b128e665198dde94758acab3a5ab7fefe0c3c6617eb98ad01693d guix-build-ab86ac7739b2/output/x86_64-w64-mingw32/inputs.SHA256SUMS
```
ACKs for top commit:
laanwj:
Concept and code review ACK ab86ac7739
fanquake:
ACK ab86ac7739
Tree-SHA512: 9f5498480379fad41de616da48331e123daf5b2294ca79c33ffea2b113b314634be9a2a70bf060cb5be1392a48e9d047891e1d22c129f408f1d76a0bc888441f
9a0969585f build: Add /opt/homebrew to path to look for boost libraries (Fu Yong Quah)
Pull request description:
Following the instruction in https://github.com/bitcoin/bitcoin/blob/master/doc/build-osx.md for building on the M1 Macs don't work out of the box, because homebrew now defaults to /opt/homebrew instead of /usr/local. This PR fixes that.
ACKs for top commit:
jonasschnelli:
utACK 9a0969585f
promag:
Tested ACK 9a0969585f.
Tree-SHA512: 472568b97fbd8623481fe6fd43b0509fa32fe7f1c1d8090321a6a6a5bdc7343d4ad4122c10dcc7c9c93068db8a3f009a73befaf1ba11e4af54a66afd2c2dbe14
MarcoFalke