Merge branch 'qtumcore27' into core27

qtumproject · Aug 27, 2024 · 7009045 · 7009045
2 parents 7747b2b + 258457a
commit 7009045
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diff --git a/.cirrus.yml b/.cirrus.yml
@@ -22,7 +22,7 @@ env:  # Global defaults
 # - The ./ci/ depedencies (with cirrus-cli) should be installed:
 #
 #   ```
-#   apt update && apt install screen python3 bash podman-docker curl -y && curl -L -o cirrus "https://github.com/cirruslabs/cirrus-cli/releases/latest/download/cirrus-linux-$(dpkg --print-architecture)" && mv cirrus /usr/local/bin/cirrus && chmod +x /usr/local/bin/cirrus
+#   apt update && apt install git screen python3 bash podman-docker curl -y && curl -L -o cirrus "https://github.com/cirruslabs/cirrus-cli/releases/latest/download/cirrus-linux-$(dpkg --print-architecture)" && mv cirrus /usr/local/bin/cirrus && chmod +x /usr/local/bin/cirrus
 #   ```
 #
 # - There are no strict requirements on the hardware, because having less CPUs
@@ -55,7 +55,7 @@ base_template: &BASE_TEMPLATE
   << : *FILTER_TEMPLATE
   merge_base_script:
     # Unconditionally install git (used in fingerprint_script).
-    - bash -c "$PACKAGE_MANAGER_INSTALL git"
+    - git --version || bash -c "$PACKAGE_MANAGER_INSTALL git"
     - if [ "$CIRRUS_PR" = "" ]; then exit 0; fi
     - git fetch --depth=1 $CIRRUS_REPO_CLONE_URL "pull/${CIRRUS_PR}/merge"
     - git checkout FETCH_HEAD  # Use merged changes to detect silent merge conflicts
@@ -84,6 +84,9 @@ task:
     memory: 1G
   # For faster CI feedback, immediately schedule the linters
   << : *CREDITS_TEMPLATE
+  test_runner_cache:
+    folder: "/lint_test_runner"
+    fingerprint_script: echo $CIRRUS_TASK_NAME $(git rev-parse HEAD:test/lint/test_runner)
   python_cache:
     folder: "/python_build"
     fingerprint_script: cat .python-version /etc/os-release
@@ -111,7 +114,7 @@ task:
     FILE_ENV: "./ci/test/00_setup_env_arm.sh"
 
 task:
-  name: 'Win64, unit tests, no gui tests, no boost::process, no functional tests'
+  name: 'Win64, unit tests, no gui tests, no functional tests'
   << : *GLOBAL_TASK_TEMPLATE
   persistent_worker:
     labels:
@@ -129,13 +132,13 @@ task:
     FILE_ENV: "./ci/test/00_setup_env_i686_centos.sh"
 
 task:
-  name: 'previous releases, qt5 dev package and depends packages, DEBUG'
+  name: 'previous releases, depends DEBUG'
   << : *GLOBAL_TASK_TEMPLATE
   persistent_worker:
     labels:
       type: small
   env:
-    FILE_ENV: "./ci/test/00_setup_env_native_qt5.sh"
+    FILE_ENV: "./ci/test/00_setup_env_native_previous_releases.sh"
 
 task:
   name: 'TSan, depends, gui'
@@ -197,10 +200,10 @@ task:
     FILE_ENV: "./ci/test/00_setup_env_native_nowallet_libbitcoinkernel.sh"
 
 task:
-  name: 'macOS-cross 11.0, gui, no tests'
+  name: 'macOS-cross, gui, no tests'
   << : *GLOBAL_TASK_TEMPLATE
   persistent_worker:
     labels:
       type: small
   env:
-    FILE_ENV: "./ci/test/00_setup_env_mac.sh"
+    FILE_ENV: "./ci/test/00_setup_env_mac_cross.sh"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -63,18 +63,18 @@ jobs:
           echo "TEST_BASE=$(git rev-list -n$((${{ env.MAX_COUNT }} + 1)) --reverse HEAD ^$(git rev-list -n1 --merges HEAD)^@ | head -1)" >> "$GITHUB_ENV"
       - run: |
           sudo apt-get update
-          sudo apt-get install clang ccache build-essential libtool autotools-dev automake pkg-config bsdmainutils python3-zmq libevent-dev libboost-dev libsqlite3-dev libdb++-dev systemtap-sdt-dev libminiupnpc-dev libnatpmp-dev libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools qtwayland5 libqrencode-dev -y
+          sudo apt-get install clang-15 ccache build-essential libtool autotools-dev automake pkg-config bsdmainutils python3-zmq libevent-dev libboost-dev libsqlite3-dev libdb++-dev systemtap-sdt-dev libminiupnpc-dev libnatpmp-dev qtbase5-dev qttools5-dev qttools5-dev-tools qtwayland5 libqrencode-dev -y
       - name: Compile and run tests
         run: |
           # Run tests on commits after the last merge commit and before the PR head commit
           # Use clang++, because it is a bit faster and uses less memory than g++
-          git rebase --exec "echo Running test-one-commit on \$( git log -1 ) && ./autogen.sh && CC=clang CXX=clang++ ./configure && make clean && make -j $(nproc) check && ./test/functional/test_runner.py -j $(( $(nproc) * 2 ))" ${{ env.TEST_BASE }}
+          git rebase --exec "echo Running test-one-commit on \$( git log -1 ) && ./autogen.sh && CC=clang-15 CXX=clang++-15 ./configure && make clean && make -j $(nproc) check && ./test/functional/test_runner.py -j $(( $(nproc) * 2 ))" ${{ env.TEST_BASE }}
 
   macos-native-x86_64:
     name: 'macOS 13 native, x86_64, no depends, sqlite only, gui'
     # Use latest image, but hardcode version to avoid silent upgrades (and breaks).
     # See: https://github.com/actions/runner-images#available-images.
-    runs-on: macos-13  # Use M1 once available https://github.com/github/roadmap/issues/528
+    runs-on: macos-13
 
     # No need to run on the read-only mirror, unless it is a PR.
     if: github.repository != 'bitcoin-core/gui' || github.event_name == 'pull_request'
@@ -107,7 +107,7 @@ jobs:
 
       - name: Restore Ccache cache
         id: ccache-cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: ${{ env.CCACHE_DIR }}
           key: ${{ github.job }}-ccache-${{ github.run_id }}
@@ -117,7 +117,7 @@ jobs:
         run: ./ci/test_run_all.sh
 
       - name: Save Ccache cache
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         if: github.event_name != 'pull_request' && steps.ccache-cache.outputs.cache-hit != 'true'
         with:
           path: ${{ env.CCACHE_DIR }}
@@ -137,80 +137,34 @@ jobs:
       CCACHE_MAXSIZE: '200M'
       CI_CCACHE_VERSION: '4.7.5'
       CI_QT_CONF: '-release -silent -opensource -confirm-license -opengl desktop -static -static-runtime -mp -qt-zlib -qt-pcre -qt-libpng -nomake examples -nomake tests -nomake tools -no-angle -no-dbus -no-gif -no-gtk -no-ico -no-icu -no-libjpeg -no-libudev -no-sql-sqlite -no-sql-odbc -no-sqlite -no-vulkan -skip qt3d -skip qtactiveqt -skip qtandroidextras -skip qtcharts -skip qtconnectivity -skip qtdatavis3d -skip qtdeclarative -skip doc -skip qtdoc -skip qtgamepad -skip qtgraphicaleffects -skip qtimageformats -skip qtlocation -skip qtlottie -skip qtmacextras -skip qtmultimedia -skip qtnetworkauth -skip qtpurchasing -skip qtquick3d -skip qtquickcontrols -skip qtquickcontrols2 -skip qtquicktimeline -skip qtremoteobjects -skip qtscript -skip qtscxml -skip qtsensors -skip qtserialbus -skip qtserialport -skip qtspeech -skip qtsvg -skip qtvirtualkeyboard -skip qtwayland -skip qtwebchannel -skip qtwebengine -skip qtwebglplugin -skip qtwebsockets -skip qtwebview -skip qtx11extras -skip qtxmlpatterns -no-openssl -no-feature-bearermanagement -no-feature-printdialog -no-feature-printer -no-feature-printpreviewdialog -no-feature-printpreviewwidget -no-feature-sql -no-feature-sqlmodel -no-feature-textbrowser -no-feature-textmarkdownwriter -no-feature-textodfwriter -no-feature-xml'
-      CI_QT_DIR: 'qt-everywhere-src-5.15.10'
-      CI_QT_URL: 'https://download.qt.io/official_releases/qt/5.15/5.15.10/single/qt-everywhere-opensource-src-5.15.10.zip'
+      CI_QT_DIR: 'qt-everywhere-src-5.15.11'
+      CI_QT_URL: 'https://download.qt.io/official_releases/qt/5.15/5.15.11/single/qt-everywhere-opensource-src-5.15.11.zip'
       PYTHONUTF8: 1
       TEST_RUNNER_TIMEOUT_FACTOR: 40
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Fix Visual Studio installation
-        # Avoid toolset ambiguity that MSVC can't handle.
-        run: |
-          Set-Location "C:\Program Files (x86)\Microsoft Visual Studio\Installer\"
-          $InstallPath = "C:\Program Files\Microsoft Visual Studio\2022\Enterprise"
-          $componentsToRemove= @(
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ARM.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ARM"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ARM64.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ARM64"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ATL.ARM.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ATL.ARM"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ATL.ARM64.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ATL.ARM64"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ATL.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.ATL"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.MFC.ARM.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.MFC.ARM"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.MFC.ARM64.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.MFC.ARM64"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.MFC.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.MFC"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.x86.x64.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.37.17.7.x86.x64"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ARM"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ARM.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ARM64"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ARM64.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ATL"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ATL.ARM"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ATL.ARM.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ATL.ARM64"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ATL.ARM64.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.ATL.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.MFC"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.MFC.ARM"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.MFC.ARM.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.MFC.ARM64"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.MFC.ARM64.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.MFC.Spectre"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.x86.x64"
-            "Microsoft.VisualStudio.Component.VC.14.38.17.8.x86.x64.Spectre"
-          )
-          [string]$workloadArgs = $componentsToRemove | ForEach-Object {" --remove " +  $_}
-          $Arguments = ('/c', "vs_installer.exe", 'modify', '--installPath', "`"$InstallPath`"",$workloadArgs, '--quiet', '--norestart', '--nocache')
-          # should be run twice
-          $process = Start-Process -FilePath cmd.exe -ArgumentList $Arguments -Wait -PassThru -WindowStyle Hidden
-          $process = Start-Process -FilePath cmd.exe -ArgumentList $Arguments -Wait -PassThru -WindowStyle Hidden
-
       - name: Configure Developer Command Prompt for Microsoft Visual C++
         # Using microsoft/setup-msbuild is not enough.
         uses: ilammy/msvc-dev-cmd@v1
         with:
           arch: x64
 
-      - name: Check MSBuild and Qt
+      - name: Get tool information
         run: |
           msbuild -version | Out-File -FilePath "$env:GITHUB_WORKSPACE\msbuild_version"
           Get-Content -Path "$env:GITHUB_WORKSPACE\msbuild_version"
+          $env:VCToolsVersion | Out-File -FilePath "$env:GITHUB_WORKSPACE\toolset_version"
+          Write-Host "VCToolsVersion $(Get-Content -Path "$env:GITHUB_WORKSPACE\toolset_version")"
           $env:CI_QT_URL | Out-File -FilePath "$env:GITHUB_WORKSPACE\qt_url"
           $env:CI_QT_CONF | Out-File -FilePath "$env:GITHUB_WORKSPACE\qt_conf"
+          py -3 --version
 
       - name: Restore static Qt cache
         id: static-qt-cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: C:\Qt_static
           key: ${{ github.job }}-static-qt-${{ hashFiles('msbuild_version', 'qt_url', 'qt_conf') }}
@@ -253,14 +207,14 @@ jobs:
 
       - name: Save static Qt cache
         if: steps.static-qt-cache.outputs.cache-hit != 'true'
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         with:
           path: C:\Qt_static
           key: ${{ github.job }}-static-qt-${{ hashFiles('msbuild_version', 'qt_url', 'qt_conf') }}
 
       - name: Ccache installation cache
         id: ccache-installation-cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             C:\ProgramData\chocolatey\lib\ccache
@@ -277,7 +231,7 @@ jobs:
 
       - name: Restore Ccache cache
         id: ccache-cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: ~/AppData/Local/ccache
           key: ${{ github.job }}-ccache-${{ github.run_id }}
@@ -287,21 +241,22 @@ jobs:
         run: |
           Set-Location "$env:VCPKG_INSTALLATION_ROOT"
           Add-Content -Path "triplets\x64-windows-static.cmake" -Value "set(VCPKG_BUILD_TYPE release)"
-          vcpkg --vcpkg-root "$env:VCPKG_INSTALLATION_ROOT" integrate install
+          Add-Content -Path "triplets\x64-windows-static.cmake" -Value "set(VCPKG_PLATFORM_TOOLSET_VERSION $env:VCToolsVersion)"
+          .\vcpkg.exe --vcpkg-root "$env:VCPKG_INSTALLATION_ROOT" integrate install
           git rev-parse HEAD | Out-File -FilePath "$env:GITHUB_WORKSPACE\vcpkg_commit"
           Get-Content -Path "$env:GITHUB_WORKSPACE\vcpkg_commit"
 
       - name: vcpkg tools cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: C:/vcpkg/downloads/tools
           key: ${{ github.job }}-vcpkg-tools
 
       - name: vcpkg binary cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/AppData/Local/vcpkg/archives
-          key: ${{ github.job }}-vcpkg-binary-${{ hashFiles('vcpkg_commit', 'msbuild_version', 'build_msvc/vcpkg.json') }}
+          key: ${{ github.job }}-vcpkg-binary-${{ hashFiles('vcpkg_commit', 'msbuild_version', 'toolset_version', 'build_msvc/vcpkg.json') }}
 
       - name: Generate project files
         run: py -3 build_msvc\msvc-autogen.py
@@ -316,7 +271,7 @@ jobs:
         run: ccache --show-stats
 
       - name: Save Ccache cache
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         if: github.event_name != 'pull_request' && steps.ccache-cache.outputs.cache-hit != 'true'
         with:
           path: ~/AppData/Local/ccache
@@ -336,10 +291,7 @@ jobs:
         run: py -3 test\util\rpcauth-test.py
 
       - name: Run functional tests
-        # Don't run functional tests for pull requests.
-        # The test suit regularly fails to complete in windows native github
-        # actions as a child process stops making progress. The root cause has
-        # not yet been determined.
-        # Discussed in https://github.com/bitcoin/bitcoin/pull/28509
-        if: github.event_name != 'pull_request'
-        run: py -3 test\functional\test_runner.py --jobs $env:NUMBER_OF_PROCESSORS --ci --quiet --tmpdirprefix=$env:RUNNER_TEMP --combinedlogslen=99999999 --timeout-factor=$env:TEST_RUNNER_TIMEOUT_FACTOR --extended
+        env:
+          TEST_RUNNER_EXTRA: ${{ github.event_name != 'pull_request' && '--extended' || '' }}
+        shell: cmd
+        run: py -3 test\functional\test_runner.py --jobs %NUMBER_OF_PROCESSORS% --ci --quiet --tmpdirprefix=%RUNNER_TEMP% --combinedlogslen=99999999 --timeout-factor=%TEST_RUNNER_TIMEOUT_FACTOR% %TEST_RUNNER_EXTRA%
diff --git a/.python-version b/.python-version
@@ -1 +1 @@
-3.8.17
+3.9.18
diff --git a/.tx/config b/.tx/config
@@ -1,7 +1,7 @@
 [main]
 host = https://www.transifex.com
 
-[o:bitcoin:p:bitcoin:r:qt-translation-026x]
+[o:bitcoin:p:bitcoin:r:qt-translation-027x]
 file_filter = src/qt/locale/bitcoin_<lang>.xlf
 source_file = src/qt/locale/bitcoin_en.xlf
 source_lang = en
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -66,9 +66,10 @@ Discussion about codebase improvements happens in GitHub issues and pull
 requests.
 
 The developer
-[mailing list](https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev)
+[mailing list](https://groups.google.com/g/bitcoindev)
 should be used to discuss complicated or controversial consensus or P2P protocol changes before working on
 a patch set.
+Archives can be found on [https://gnusha.org/pi/bitcoindev/](https://gnusha.org/pi/bitcoindev/).
 
 
 Contributor Workflow

diff --git a/COPYING b/COPYING
@@ -1,7 +1,7 @@
 The MIT License (MIT)
 
-Copyright (c) 2009-2023 The Bitcoin Core developers
-Copyright (c) 2009-2023 Bitcoin Developers
+Copyright (c) 2009-2024 The Bitcoin Core developers
+Copyright (c) 2009-2024 Bitcoin Developers
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

diff --git a/Makefile.am b/Makefile.am
@@ -14,8 +14,6 @@ endif
 .PHONY: deploy FORCE
 .INTERMEDIATE: $(COVERAGE_INFO)
 
-export PYTHONPATH
-
 if BUILD_BITCOIN_LIBS
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libbitcoinconsensus.pc
@@ -192,7 +190,7 @@ $(COV_TOOL_WRAPPER):
 	@chmod +x $(COV_TOOL_WRAPPER)
 
 baseline.info: $(COV_TOOL_WRAPPER)
-	$(LCOV) -c -i -d $(abs_builddir)/src -o $@
+	$(LCOV) $(LCOV_OPTS) -c -i -d $(abs_builddir)/src -o $@
 
 baseline_filtered.info: baseline.info
 	$(abs_builddir)/contrib/filter-lcov.py $(LCOV_FILTER_PATTERN) $< $@
@@ -226,13 +224,13 @@ functional_test_filtered.info: functional_test.info
 	$(LCOV) -a $@ $(LCOV_OPTS) -o $@
 
 fuzz_coverage.info: fuzz_filtered.info
-	$(LCOV) -a $(LCOV_OPTS) baseline_filtered.info -a fuzz_filtered.info -o $@ | $(GREP) "\%" | $(AWK) '{ print substr($$3,2,50) "/" $$5 }' > coverage_percent.txt
+	$(LCOV) $(LCOV_OPTS) -a baseline_filtered.info -a fuzz_filtered.info -o $@ | $(GREP) "\%" | $(AWK) '{ print substr($$3,2,50) "/" $$5 }' > coverage_percent.txt
 
 test_bitcoin_coverage.info: baseline_filtered.info test_bitcoin_filtered.info
-	$(LCOV) -a $(LCOV_OPTS) baseline_filtered.info -a test_bitcoin_filtered.info -o $@
+	$(LCOV) $(LCOV_OPTS) -a baseline_filtered.info -a test_bitcoin_filtered.info -o $@
 
 total_coverage.info: test_bitcoin_filtered.info functional_test_filtered.info
-	$(LCOV) -a $(LCOV_OPTS) baseline_filtered.info -a test_bitcoin_filtered.info -a functional_test_filtered.info -o $@ | $(GREP) "\%" | $(AWK) '{ print substr($$3,2,50) "/" $$5 }' > coverage_percent.txt
+	$(LCOV) $(LCOV_OPTS) -a baseline_filtered.info -a test_bitcoin_filtered.info -a functional_test_filtered.info -o $@ | $(GREP) "\%" | $(AWK) '{ print substr($$3,2,50) "/" $$5 }' > coverage_percent.txt
 
 fuzz.coverage/.dirstamp: fuzz_coverage.info
 	$(GENHTML) -s $(LCOV_OPTS) $< -o $(@D)
@@ -315,6 +313,10 @@ EXTRA_DIST += \
     test/util/data/txcreatesignv1.hex \
     test/util/data/txcreatesignv1.json \
     test/util/data/txcreatesignv2.hex \
+    test/util/data/txreplace1.hex \
+    test/util/data/txreplacenoinputs.hex \
+    test/util/data/txreplaceomittedn.hex \
+    test/util/data/txreplacesingleinput.hex \
     test/util/rpcauth-test.py
 
 CLEANFILES = $(OSX_ZIP) $(BITCOIN_WIN_INSTALLER)

diff --git a/SECURITY.md b/SECURITY.md
@@ -15,6 +15,6 @@ The following keys may be used to communicate sensitive information to developer
 |------|-------------|
 | Pieter Wuille | 133E AC17 9436 F14A 5CF1  B794 860F EB80 4E66 9320 |
 | Michael Ford | E777 299F C265 DD04 7930  70EB 944D 35F9 AC3D B76A |
-| Andrew Chow | 1528 1230 0785 C964 44D3  334D 1756 5732 E08E 5E41 |
+| Ava Chow | 1528 1230 0785 C964 44D3  334D 1756 5732 E08E 5E41 |
 
 You can import a key by running the following command with that individual’s fingerprint: `gpg --keyserver hkps://keys.openpgp.org --recv-keys "<fingerprint>"` Ensure that you put quotes around fingerprints containing spaces.
diff --git a/build-aux/m4/ax_cxx_compile_stdcxx.m4 b/build-aux/m4/ax_cxx_compile_stdcxx.m4
@@ -983,7 +983,7 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_20], [[
 
 #error "This is not a C++ compiler"
 
-#elif __cplusplus < 202002L
+#elif __cplusplus < 201709L  // Temporary patch on top of upstream to allow g++-10
 
 #error "This is not a C++20 compiler"