a/aaa_base-14.2-arm-3.txz
If the system is running -current, append a “+” to /etc/slackware-version.
Identify the system as stable or current in /etc/os-release by setting
VERSION_CODENAME to either stable or current. In PRETTY_NAME, really
spell it out, e.g: PRETTY_NAME=“Slackware 14.2 (pre-15.0 -current)”

l/cairo-1.15.12-arm-1.txz