* Package:    media-video/v4l2loopback-0.8.0
 * Repository: gentoo
 * Maintainer: naota@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
 * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Could not find a Makefile in the kernel source directory.
 * Please ensure that /usr/src/linux points to a complete set of Linux sources
 * Unable to calculate Linux Kernel version for build, attempting to use running version
 * Could not find a usable .config in the kernel source directory.
 * Please ensure that /usr/src/linux points to a configured set of Linux sources.
 * If you are using KBUILD_OUTPUT, please set the environment var so that
 * it points to the necessary object directory so that it might find .config.
 * ERROR: media-video/v4l2loopback-0.8.0::gentoo failed (setup phase):
 *   Kernel not configured; no .config found in 
 * 
 * Call stack:
 *           ebuild.sh, line  93:  Called pkg_setup
 *           ebuild.sh, line 321:  Called linux-mod_pkg_setup
 *    linux-mod.eclass, line 569:  Called linux-info_pkg_setup
 *   linux-info.eclass, line 914:  Called check_extra_config
 *   linux-info.eclass, line 724:  Called require_configured_kernel
 *   linux-info.eclass, line 297:  Called die
 * The specific snippet of code:
 *   		die "Kernel not configured; no .config found in ${KV_OUT_DIR}"
 * 
 * If you need support, post the output of `emerge --info '=media-video/v4l2loopback-0.8.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=media-video/v4l2loopback-0.8.0::gentoo'`.
 * The complete build log is located at '/var/log/portage/media-video:v4l2loopback-0.8.0:20141109-214444.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/media-video/v4l2loopback-0.8.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/media-video/v4l2loopback-0.8.0/temp/die.env'.
 * Working directory: '/usr/lib64/python3.3/site-packages'
 * S: '/var/tmp/portage/media-video/v4l2loopback-0.8.0/work/v4l2loopback-0.8.0'