Someone

# emerge alsa-driver
Calculating dependencies... done!

>>> Emerging (1 of 1) media-sound/alsa-driver-1.0.14_rc1 to /
 * alsa-driver-1.0.14rc1.tar.bz2 MD5 ;-) ...                              [ ok ] * alsa-driver-1.0.14rc1.tar.bz2 RMD160 ;-) ...                           [ ok ] * alsa-driver-1.0.14rc1.tar.bz2 SHA1 ;-) ...                             [ ok ] * alsa-driver-1.0.14rc1.tar.bz2 SHA256 ;-) ...                           [ ok ] * alsa-driver-1.0.14rc1.tar.bz2 size ;-) ...                             [ ok ] * checking ebuild checksums ;-) ...                                      [ ok ] * checking auxfile checksums ;-) ...                                     [ ok ] * checking miscfile checksums ;-) ...                                    [ ok ] * checking alsa-driver-1.0.14rc1.tar.bz2 ;-) ...                         [ ok ] * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found sources for kernel version:
 *     2.6.19-gentoo-r5
 * Checking for suitable kernel configuration options...
 *   ALSA is already compiled into the kernel.
 * 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: media-sound/alsa-driver-1.0.14_rc1 failed.
Call stack:
  ebuild.sh, line 1630:   Called dyn_setup
  ebuild.sh, line 702:   Called qa_call 'pkg_setup'
  ebuild.sh, line 38:   Called pkg_setup
  alsa-driver-1.0.14_rc1.ebuild, line 91:   Called linux-mod_pkg_setup
  linux-mod.eclass, line 459:   Called linux-info_pkg_setup
  linux-info.eclass, line 572:   Called check_extra_config
  linux-info.eclass, line 471:   Called die

!!! Incorrect kernel configuration options
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/media-sound/alsa-driver-1.0.14_rc1/temp/build.log'.