localhost linux # emerge xorg-x11 --resume
*** Resuming merge...

>>> Emerging (1 of 5) x11-drivers/nvidia-drivers-1.0.8776 to /
 * NVIDIA-Linux-x86_64-1.0-8776-pkg2.run MD5 ;-) ...                                          [ ok ]
 * NVIDIA-Linux-x86_64-1.0-8776-pkg2.run RMD160 ;-) ...                                       [ ok ]
 * NVIDIA-Linux-x86_64-1.0-8776-pkg2.run SHA1 ;-) ...                                         [ ok ]
 * NVIDIA-Linux-x86_64-1.0-8776-pkg2.run SHA256 ;-) ...                                       [ ok ]
 * NVIDIA-Linux-x86_64-1.0-8776-pkg2.run size ;-) ...                                         [ ok ]
 * checking ebuild checksums ;-) ...                                                          [ ok ]
 * checking auxfile checksums ;-) ...                                                         [ ok ]
 * checking miscfile checksums ;-) ...                                                        [ ok ]
 * checking NVIDIA-Linux-x86_64-1.0-8776-pkg2.run ;-) ...                                     [ ok ]
 * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found sources for kernel version:
 *     2.6.17-gentoo-r8
 * These sources have not yet been prepared.
 * We cannot build against an unprepared tree.
 * To resolve this, please type the following:
 *
 * # cd /usr/src/linux
 * # make oldconfig
 * # make modules_prepare
 *
 * Then please try merging this module again.

!!! ERROR: x11-drivers/nvidia-drivers-1.0.8776 failed.
Call stack:
  ebuild.sh, line 1562:   Called dyn_setup
  ebuild.sh, line 665:   Called pkg_setup
  nvidia-drivers-1.0.8776.ebuild, line 106:   Called linux-mod_pkg_setup
  linux-mod.eclass, line 433:   Called check_kernel_built
  linux-info.eclass, line 368:   Called die

!!! Kernel sources need compiling first
!!! If you need support, post the topmost build error, and the call stack if relevant.

localhost linux #