I have found Fedora weston depends on libunwind. There is a longterm plan to obsolete libunwind from Fedora by new elfutils unwinder. But xorg-x11-server does not even need any external (non-glibc) unwinder. You do only self-backtrace (called local unwinding by libunwind). glibc backtrace() can do the same. Libunwind only adds resolving of address -> symbol name there, IIUC. dladdr() only resolves .dynsym symbol while elfutils (and libunwind) resolve also .symtab, separate debug info (*-debuginfo.rpm) and minidebuginfo (.gnu_debugdata in the main binary). address -> symbol name resolving can be done with RH-supported elfutils package, a simple self-backtrace with symbol resolving is for example: http://people.redhat.com/jkratoch/backtracei.c
This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle. Changing version to '22'. More information and reason for this action is here: https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora22
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.