I cannot install or upgrade firefox if I have devel/libunwind installed. It seems that some files are not including <unwind.h> because firefox complains that it cannot find _Unwind_Backtrace.
- Uninstall libunwind
- Upgrade/install firefox
- reinstall libunwind
Over to maintainer (via the GNATS Auto Assign Tool)
The problem exists in 9.0-STABLE amd64.