8000 cmake: GUI build broken with `-stdlib=libc++` · Issue #32331 · bitcoin/bitcoin · GitHub
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cmake: GUI build broken with -stdlib=libc++ #32331

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fanquake opened this issue Apr 23, 2025 · 2 comments
Open

cmake: GUI build broken with -stdlib=libc++ #32331

fanquake opened this issue Apr 23, 2025 · 2 comments
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@fanquake
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master @ 9a4c92eb9ac29204df3d826f5ae526ab16b8ad65
clang version 20.1.2 (Fedora 20.1.2-3.fc42)
cmake -B build -DBUILD_GUI=ON -DAPPEND_CXXFLAGS="-stdlib=libc++" -DAPPEND_LDFLAGS="-stdlib=libc++"
cmake --build build
<snip>
cmake --build build -j17 --target bitcoin-qt
[  0%] Generating bitcoin-build-info.h
[  0%] Built target secp256k1_precomputed
[  0%] Built target crc32c
[  1%] Built target bitcoin_consensus
[  3%] Built target bitcoin_cli
[  4%] Built target univalue
[  7%] Built target minisketch
[  7%] Built target secp256k1
[ 12%] Built target bitcoin_crypto
[ 20%] Built target leveldb
[ 20%] Built target generate_build_info
[ 20%] Built target bitcoin_clientversion
[ 32%] Built target bitcoin_util
[ 32%] Built target bitcoin_wallet
[ 32%] Built target bitcoinqt_autogen_timestamp_deps
[ 43%] Built target bitcoin_common
[ 44%] Built target bitcoinqt_autogen
[ 63%] Built target bitcoin_node
[100%] Built target bitcoinqt
[100%] Built target bitcoin-qt_autogen_timestamp_deps
[100%] Built target bitcoin-qt_autogen
[100%] Linking CXX executable ../../bin/bitcoin-qt
/usr/bin/ld: CMakeFiles/bitcoin-qt.dir/main.cpp.o: in function `std::__1::__function::__func<$_0, std::__1::allocator<$_0>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > (char const*)>::operator()(char const*&&)':
/usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:1477:(.text+0x18f): undefined reference to `QByteArray::toStdString() const'
/usr/bin/ld: ../../lib/libbitcoinqt.a(bitcoin.cpp.o): in function `QString::toStdString() const':
/usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:1477:(.text+0x3b): undefined reference to `QByteArray::toStdString() const'
/usr/bin/ld: /usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:1477:(.text+0xe0): undefined reference to `QByteArray::toStdString() const'
/usr/bin/ld: ../../lib/libbitcoinqt.a(bitcoin.cpp.o): in function `BitcoinApplication::createOptionsModel(bool)':
/usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:1477:(.text+0xc86): undefined reference to `QByteArray::toStdString() const'
/usr/bin/ld: ../../lib/libbitcoinqt.a(bitcoin.cpp.o): in function `initTranslations(QTranslator&, QTranslator&, QTranslator&, QTranslator&)':
/usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:1477:(.text+0x5ab2): undefined reference to `QByteArray::toStdString() const'
/usr/bin/ld: ../../lib/libbitcoinqt.a(bitcoingui.cpp.o):/usr/include/x86_64-linux-gnu/qt6/QtCore/qstring.h:1477: more undefined references to `QByteArray::toStdString() const' follow
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
@hebasto
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hebasto commented Apr 23, 2025

Is it supposed to work without using depends built with -stdlib=libc++?

@maflcko
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maflcko commented Apr 23, 2025

IIRC it used to work with qt5, but it is unclear if that was intentional or by accident. I guess in any case this is an upstream issue that would need to be fixed in the distro or in qt6, if it is an issue at all?

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