I encountered the same problem in luminance-hdr. It does not seem to
affect all packages that link qt5-qtwebengine. I would like to know the
root cause, but never figured it out. Instead, I was able to work around
it by disabling LTO in my own package. More details in the bugs below.
luminance-hdr: FTBFS in Fedora Rawhide
https://bugzilla.redhat.com/show_bug.cgi?id=2065272
Problems linking libQt5WebEngineCore.so.5.15.8
https://bugzilla.redhat.com/show_bug.cgi?id=2065758
On 3/23/22 15:10, José Abílio Matos wrote:
Hi,
in order to rebuild tellico, to fix a FTBFS bug, I get in the link
stage the following error:
/usr/bin/ld: /usr/lib64/libQt5WebEngineCore.so.5.15.8: undefined
reference to `std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_replace_aux(unsigned long, unsigned long,
unsigned long, char)@GLIBCXX_3.4.21'
/usr/bin/ld: /usr/lib64/libQt5WebEngineCore.so.5.15.8: undefined
reference to `std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_append(char const*, unsigned
long)@GLIBCXX_3.4.21'
/usr/bin/ld: /usr/lib64/libQt5WebEngineCore.so.5.15.8: undefined
reference to `std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_construct(unsigned long, char)@GLIBCXX_3.4.21'
/usr/bin/ld: /usr/lib64/libQt5WebEngineCore.so.5.15.8: undefined
reference to `std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_create(unsigned long&, unsigned
long)@GLIBCXX_3.4.21'
This fails in x86* and arm64 and succeeds in ppc64le and x390x:
https://koji.fedoraproject.org/koji/taskinfo?taskID=84590646
Is this related to LTO? Or is it something else?
Regards,
--
José Abílio
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