This issue appears on jammy because /lib is a symbolic link, and the /lib/x86_64-linux-gnu entry in the loader search path is used to find libQt6Core. The cmake generated qconfig.cpp contains this line: #define QT_CONFIGURE_LIBLOCATION_TO_PREFIX_PATH "../../" So, prefixFromQtCoreLibraryHelper() computes prefixdir as /lib/x86_64-linux-gnu/../../ and returns /. Note if /usr/lib/x86_64-linux-gnu had been used to find libQt6Core by the loader, then prefixFromQtCoreLibraryHelper() would have computed prefixdir as /usr/lib/x86_64-linux-gnu/../../, and returned /usr, which would have worked.
Instead of messing with the loader search path, or messing with cmake to compute QT_CONFIGURE_LIBLOCATION_TO_PREFIX_PATH correctly given the loader search path, the attached patch just resolves any symbolic link so libdir becomes /usr/lib/x86_64-linux-gnu instead of /lib/x86_64-linux-gnu and prefixFromQtCoreLibraryHelper() returns /usr. ** Patch added: "qlibraryinfo_symlink.patch" https://bugs.launchpad.net/ubuntu/+source/qt6-base/+bug/1970057/+attachment/5583206/+files/qlibraryinfo_symlink.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970057 Title: Qt6 QLibraryInfo returns wrong paths To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qt6-base/+bug/1970057/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
