# emerge ieee80211
Calculating dependencies ...done!
>>> emerge (1 of 1) net-wireless/ieee80211-1.1.13-r1 to /
>>> md5 files ;-) ieee80211-1.1.13-r1.ebuild
>>> md5 files ;-) files/ieee80211-1.1.13-cflags.patch
>>> md5 files ;-) files/digest-ieee80211-1.1.13-r1
>>> md5 files ;-) files/remove-old
>>> md5 src_uri ;-) ieee80211-1.1.13.tgz
* Determining the location of the kernel source code
* Found kernel source directory:
* /usr/src/linux
* Found sources for kernel version:
* 2.6.16-gentoo-r9
* Checking for suitable kernel configuration options...
* ieee80211-1.1.13 requires the in-kernel version of the IEEE802.11 subsystem to be disabled (CONFIG_IEEE80211)
* Please check to make sure these options are set correctly.
* Failure to do so may cause unexpected problems.
* Once you have satisfied these options, please try merging
* this package again.
!!! ERROR: net-wireless/ieee80211-1.1.13-r1 failed.
!!! Function check_extra_config, Line 466, Exitcode 0
!!! Incorrect kernel configuration options
!!! If you need support, post the topmost build error, NOT this status message.