>>> Unpacking source...
Creating directory NVIDIA-Linux-x86-100.14.09-pkg0
Verifying archive integrity... OK
Uncompressing NVIDIA Accelerated Graphics Driver for Linux-x86 100.14.09.............................................................................................................................
 * Applying NVIDIA_glx-defines.patch ...                                                                              [ ok ]
 * Applying NVIDIA_glx-glheader.patch ...                                                                             [ ok ]
 * Converting Makefile.kbuild to use M= instead of SUBDIRS= ...                                                       [ ok ]
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/x11-drivers/nvidia-drivers-100.14.09-r10/work/NVIDIA-Linux-x86-100.14.09-pkg0/usr/src/nv ...
 * Preparing nvidia module

NVIDIA: calling KBUILD...
make CC=i686-pc-linux-gnu-gcc  KBUILD_VERBOSE=1 -C /usr/src/linux M=/var/tmp/portage/x11-drivers/nvidia-drivers-100.14.09-r10/work/NVIDIA-Linux-x86-100.14.09-pkg0/usr/src/nv modules
make[2]: warning: jobserver unavailable: using -j1.  Add `+' to parent make rule.

  WARNING: Symbol version dump /usr/src/linux-2.6.21-sabayon-r2/Module.symvers
           is missing; modules will have no dependencies and modversions.

/bin/sh: scripts/genksyms/genksyms: No such file or directory
make[3]: *** [/var/tmp/portage/x11-drivers/nvidia-drivers-100.14.09-r10/work/NVIDIA-Linux-x86-100.14.09-pkg0/usr/src/nv/nv.o] Error 1
make[2]: *** [_module_/var/tmp/portage/x11-drivers/nvidia-drivers-100.14.09-r10/work/NVIDIA-Linux-x86-100.14.09-pkg0/usr/src/nv] Error 2
NVIDIA: left KBUILD.
nvidia.ko failed to build!
make[1]: *** [module] Error 1
make: *** [module] Error 2

!!! ERROR: x11-drivers/nvidia-drivers-100.14.09-r10 failed.
Call stack:
  ebuild.sh, line 1621:   Called dyn_compile
  ebuild.sh, line 973:   Called qa_call 'src_compile'
  ebuild.sh, line 44:   Called src_compile
  nvidia-drivers-100.14.09-r10.ebuild, line 180:   Called linux-mod_src_compile
  linux-mod.eclass, line 516:   Called die

!!! Unable to make  IGNORE_CC_MISMATCH=yes V=1 SYSSRC=/usr/src/linux SYSOUT=/usr/src/linux clean module.
!!! 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/x11-drivers/nvidia-drivers-100.14.09-r10/temp/build.log'.

!!! This ebuild is from an overlay: '/usr/portage/local/layman/sabayon'