* Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found kernel object directory:
 *     /lib/modules/2.6.23-gentoo-r3/build
 * Found sources for kernel version:
 *     2.6.23-gentoo-r3
 * Checking for MTRR support ...                                                                                        [ ok ]
 * ***** WARNING *****
 * 
 * You are currently installing a version of nvidia-drivers that is
 * known not to work with a video card you have installed on your
 * system. If this is intentional, please ignore this. If it is not
 * please perform the following steps:
 * 
 * Add the following mask entry to /etc/portage/package.mask by
 * echo ">=x11-drivers/nvidia-drivers-72.0.0
=x11-drivers/nvidia-1.0.9639" >> /etc/portage/package.mask
 * 
 * Failure to perform the steps above could result in a non-working
 * X setup.
 * 
 * For more information please read:
 * http://www.nvidia.com/object/IO_32667.html
>>> Unpacking source...
Creating directory NVIDIA-Linux-x86-100.14.19-pkg0
Verifying archive integrity... OK
Uncompressing NVIDIA Accelerated Graphics Driver for Linux-x86 100.14.19.............................................................................................................................
 * Applying NVIDIA_glx-defines.patch ...                                                                                [ ok ]
 * Applying NVIDIA_glx-glheader.patch ...                                                                               [ ok ]
 * Applying NVIDIA_i2c-hwmon.patch ...                                                                                  [ ok ]
 * Converting Makefile.kbuild to use M= instead of SUBDIRS= ...                                                         [ ok ]
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/x11-drivers/nvidia-drivers-100.14.19/work/NVIDIA-Linux-x86-100.14.19-pkg0/usr/src/nv ...
 * Preparing nvidia module
rm -f Makefile
sh ./conftest.sh "i686-pc-linux-gnu-gcc" "i686-pc-linux-gnu-gcc" /usr/src/linux /lib/modules/2.6.23-gentoo-r3/build cc_sanity_check full_output
sh ./conftest.sh "i686-pc-linux-gnu-gcc" "i686-pc-linux-gnu-gcc" /usr/src/linux /lib/modules/2.6.23-gentoo-r3/build select_makefile full_output
make --no-print-directory -f Makefile module
Your kernel was configured to include rivafb support!

The rivafb driver conflicts with the NVIDIA driver, please
reconfigure your kernel and *disable* rivafb support, then
try installing the NVIDIA kernel module again.

*** Failed rivafb sanity check. Bailing out! ***

make[1]: *** [rivafb-sanity-check] Error 1
make[1]: *** Waiting for unfinished jobs....
Your kernel was configured to include nvidiafb support!

The nvidiafb driver conflicts with the NVIDIA driver, please
reconfigure your kernel and *disable* nvidiafb support, then
try installing the NVIDIA kernel module again.

*** Failed nvidiafb sanity check. Bailing out! ***

make[1]: *** [nvidiafb-sanity-check] Error 1
make: *** [module] Error 2
 * 
 * ERROR: x11-drivers/nvidia-drivers-100.14.19 failed.
 * Call stack:
 *                         ebuild.sh, line 1701:  Called dyn_compile
 *                         ebuild.sh, line 1039:  Called qa_call 'src_compile'
 *                         ebuild.sh, line   44:  Called src_compile
 *   nvidia-drivers-100.14.19.ebuild, line  212:  Called linux-mod_src_compile
 *                  linux-mod.eclass, line  518:  Called die
 * The specific snippet of code:
 *                      emake HOSTCC="$(tc-getBUILD_CC)" CC="$(get-KERNEL_CC)" LDFLAGS="$(get_abi_LDFLAGS)" \
 *                                ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS} \
 *                              || die "Unable to make ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS}."
 *  The die message:
 *   Unable to make  IGNORE_CC_MISMATCH=yes V=1 SYSSRC=/usr/src/linux SYSOUT=/lib/modules/2.6.23-gentoo-r3/build 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-100.14.19/temp/build.log'.
 *