[package] qt/6.7.3: host libb2 may be used

[fnadeau]

Description

If host has libb2 installed, build will go through but example will fail to link due to missing system lib in link command.

Note: shared build works but makes them less shareable since libb2 is not declared as dependency.

Package and Environment Details

• Package Name/Version: qt/6.7.3
• Operating System+version: Arch
• Compiler+version: GCC 14.2.1 20240910
• Docker image: archlinux/base-devel
• Conan version: conan 2.11.0
• Python version: Python 3.13.1

Conan profile

Host profile:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu20
compiler.libcxx=libstdc++11
compiler.version=14
os=Linux

Build profile:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu20
compiler.libcxx=libstdc++11
compiler.version=14
os=Linux

Steps to reproduce

docker run -it --rm archlinux/base-devel bash
pacman -Syu python-virtualenv libb2 git cmake ninja libglvnd xkeyboard-config
cd
python -m venv conan
source conan/bin/activate
pip install conan
git clone https://github.com/conan-io/conan-center-index.git
conan profile detect
conan create conan-center-index/recipes/qt/6.x.x/conanfile.py --version 6.7.3 --build=missing -c tools.system.package_manager:mode=install
conan create conan-center-index/recipes/qt/6.x.x/conanfile.py --version 6.7.3 --build=missing -c tools.system.package_manager:mode=install -o='qt/*:shared=True'

Logs

Fail when shared=False

qt/6.7.3 (test package): Running CMake.build()
qt/6.7.3 (test package): RUN: cmake --build "/root/conan-center-index/recipes/qt/6.x.x/test_package/build/gcc-14-x86_64-gnu17-release" -- -j8
[  0%] Built target test_package_autogen_timestamp_deps
[ 14%] Automatic MOC for target test_package
[ 14%] Built target test_package_autogen
[ 28%] Automatic RCC for example.qrc
[ 57%] Building CXX object CMakeFiles/test_package.dir/test_package_autogen/mocs_compilation.cpp.o
[ 71%] Building CXX object CMakeFiles/test_package.dir/test_package_autogen/EWIEGA46WW/qrc_example.cpp.o
[ 71%] Building CXX object CMakeFiles/test_package.dir/test_package.cpp.o
[ 85%] Linking CXX executable test_package
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHash::QCryptographicHash(QCryptographicHash::Algorithm)':
qcryptographichash.cpp:(.text._ZN18QCryptographicHashC2ENS_9AlgorithmE+0x1a7): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN18QCryptographicHashC2ENS_9AlgorithmE+0x1bf): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHash::reset()':
qcryptographichash.cpp:(.text._ZN18QCryptographicHash5resetEv+0x137): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN18QCryptographicHash5resetEv+0x14f): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHashPrivate::State::State(QCryptographicHash::Algorithm)':
qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5StateC2EN18QCryptographicHash9AlgorithmE+0x12c): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5StateC2EN18QCryptographicHash9AlgorithmE+0x144): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHashPrivate::reset()':
qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5resetEv+0x134): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5resetEv+0x14c): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHashPrivate::State::reset(QCryptographicHash::Algorithm)':
qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5State5resetEN18QCryptographicHash9AlgorithmE+0x12c): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5State5resetEN18QCryptographicHash9AlgorithmE+0x144): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHashPrivate::State::addData(QCryptographicHash::Algorithm, QByteArrayView)':
qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5State7addDataEN18QCryptographicHash9AlgorithmE14QByteArrayView+0x26c): undefined reference to `blake2s_update'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5State7addDataEN18QCryptographicHash9AlgorithmE14QByteArrayView+0x29c): undefined reference to `blake2b_update'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHashPrivate::State::finalizeUnchecked(QCryptographicHash::Algorithm, QSmallByteArray<64ul>&)':
qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5State17finalizeUncheckedEN18QCryptographicHash9AlgorithmER15QSmallByteArrayILm64EE+0x333): undefined reference to `blake2b_final'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN25QCryptographicHashPrivate5State17finalizeUncheckedEN18QCryptographicHash9AlgorithmER15QSmallByteArrayILm64EE+0x3ee): undefined reference to `blake2s_final'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QCryptographicHash::hash(QByteArrayView, QCryptographicHash::Algorithm)':
qcryptographichash.cpp:(.text._ZN18QCryptographicHash4hashE14QByteArrayViewNS_9AlgorithmE+0x122): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN18QCryptographicHash4hashE14QByteArrayViewNS_9AlgorithmE+0x1d2): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QMessageAuthenticationCode::QMessageAuthenticationCode(QCryptographicHash::Algorithm, QByteArrayView)':
qcryptographichash.cpp:(.text._ZN26QMessageAuthenticationCodeC2EN18QCryptographicHash9AlgorithmE14QByteArrayView+0x1f3): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN26QMessageAuthenticationCodeC2EN18QCryptographicHash9AlgorithmE14QByteArrayView+0x213): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QMessageAuthenticationCode::setKey(QByteArrayView)':
qcryptographichash.cpp:(.text._ZN26QMessageAuthenticationCode6setKeyE14QByteArrayView+0x1d3): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN26QMessageAuthenticationCode6setKeyE14QByteArrayView+0x1f3): undefined reference to `blake2s_init'
/usr/sbin/ld: /root/.conan2/p/b/qt43dd1400c7b5c/p/lib/libQt6Core.a(qcryptographichash.cpp.o): in function `QMessageAuthenticationCode::hash(QByteArrayView, QByteArrayView, QCryptographicHash::Algorithm)':
qcryptographichash.cpp:(.text._ZN26QMessageAuthenticationCode4hashE14QByteArrayViewS0_N18QCryptographicHash9AlgorithmE+0x14c): undefined reference to `blake2b_init'
/usr/sbin/ld: qcryptographichash.cpp:(.text._ZN26QMessageAuthenticationCode4hashE14QByteArrayViewS0_N18QCryptographicHash9AlgorithmE+0x214): undefined reference to `blake2s_init'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/test_package.dir/build.make:197: test_package] Error 1
make[1]: *** [CMakeFiles/Makefile2:90: CMakeFiles/test_package.dir/all] Error 2
make: *** [Makefile:91: all] Error 2

ERROR: qt/6.7.3 (test package): Error in build() method, line 37
        cmake.build()
        ConanException: Error 2 while executing

Link to system lib when using shared

qt/6.7.3 (test package): Running CMake.build()
qt/6.7.3 (test package): RUN: cmake --build "/root/conan-center-index/recipes/qt/6.x.x/test_package/build/gcc-14-x86_64-gnu17-release" -- -j8
[  0%] Built target test_package_autogen_timestamp_deps
[ 14%] Automatic MOC for target test_package
[ 14%] Built target test_package_autogen
[ 28%] Automatic RCC for example.qrc
[ 71%] Building CXX object CMakeFiles/test_package.dir/test_package_autogen/EWIEGA46WW/qrc_example.cpp.o
[ 71%] Building CXX object CMakeFiles/test_package.dir/test_package_autogen/mocs_compilation.cpp.o
[ 71%] Building CXX object CMakeFiles/test_package.dir/test_package.cpp.o
[ 85%] Linking CXX executable test_package
[100%] Built target test_package


======== Testing the package: Executing test ========
qt/6.7.3 (test package): Running test()
qt/6.7.3 (test package): RUN: ./test_package
Resource content: "Hello World From Resource\n"
"Hello World!"

(conan) [root@94a01ddae8eb ~]# cd conan-center-index/recipes/
(conan) [root@94a01ddae8eb recipes]# ldd qt/6.x.x/test_package/build/gcc-14-x86_64-gnu17-release/test_package | grep libb2
        libb2.so.1 => /usr/lib/libb2.so.1 (0x00007212d8aa7000)
(conan) [root@94a01ddae8eb recipes]#