From /usr/ports/UPDATING
Code:
20080318:
AFFECTS: users of net/skype net/skype-devel
AUTHOR: beech@FreeBSD.org
For FreeBSD versions 7.0 and above:
It is required with both skype and skype-devel to update to linux_base-fc6.
Please do the following:
1. Make sure there are no running linux applications.
2. Unmount linprocfs (umount /compat/linux/proc)
3. Uninstall your current linux_base port
4. Set appropriate sysctl (sysctl compat.linux.osrelease=2.6.16)
5. Install emulators/linux_base-fc6
6 Remount linprocfs (mount /compat/linux/proc)
7. Add compat.linux.osrelease=2.6.16 to etc/sysctl.conf
8. Add OVERRIDE_LINUX_BASE_PORT=fc6 to /etc/make.conf
Note: These instructions also apply to linux_base-f8, please use the same
osrelease.