* Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * 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: app-mobilephone/gnokii-0.6.19 failed.
 * Call stack:
 *           ebuild.sh, line 1712:  Called dyn_setup
 *           ebuild.sh, line  763:  Called qa_call 'pkg_setup'
 *           ebuild.sh, line   44:  Called pkg_setup
 *           ebuild.sh, line 1378:  Called linux-info_pkg_setup
 *   linux-info.eclass, line  558:  Called die
 * The specific snippet of code:
 *      get_version || die "Unable to calculate Linux Kernel version"
 *  The die message:
 *   Unable to calculate Linux Kernel version
 * 
 * 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/app-mobilephone/gnokii-0.6.19/temp/build.log'.
 *