pkg_add: package `png-1.6.56' was already installed as dependency, now marked as installed manually
pkg_add: var_set: can't open temp file for '/usr/pkg/pkgdb/gcc8-libs-8.5.0nb3/+INSTALLED_INFO' for writing: No such file or directory
pkg_add: Just installed dependency gcc8-libs>=8.3.0 disappeared
pkg_add: Expected dependency gcc8-libs>=8.3.0 still missing
pkg_add: 1 package addition failed