Hello, I did an update @world with 'emerge -uDNav --with-bdeps=y --backtrack=100 @world --keep-going' . dev-libs/glib-2.80.5-r1 failed to build, when I searched in internet I found that glib and gobject-introspection may have circular dependency. So I removed USE=introspection and it did build/upgrade glib without any problem. But since I need introspection in my system I re-tried to build it with introspection and it did fail. The log error of the ebuild is in attachment and the main problem is that it has a problem with smack. So I removed smack temporarily in the kernel and then dev-libs/glib-2.80.5-r1 succeeded to build with introspection. I returned to a kernel with smack and completed the update @world without problems. Then I rebuilt dev-libs/glib-2.80.5-r1 with the kernel with smack and it worked. The issue can be considered solvable but people in IRC said me to report a bug if it require smack removed. I must add I have the kernel compiled with clang.
Please attach a build log and provide emerge --info. Then change the status back to UNCONFIRMED.