Calculating dependencies... done!
>>> Verifying ebuild Manifests...

>>> Emerging (1 of 1) net-wireless/ndiswrapper-1.50 to /
 * ndiswrapper-1.50.tar.gz RMD160 ;-) ...                                 [ ok ]
 * ndiswrapper-1.50.tar.gz SHA1 ;-) ...                                   [ ok ]
 * ndiswrapper-1.50.tar.gz SHA256 ;-) ...                                 [ ok ]
 * ndiswrapper-1.50.tar.gz size ;-) ...                                   [ ok ]
 * checking ebuild checksums ;-) ...                                      [ ok ]
 * checking auxfile checksums ;-) ...                                     [ ok ]
 * checking miscfile checksums ;-) ...                                    [ ok ]
 * checking ndiswrapper-1.50.tar.gz ;-) ...                               [ ok ]

 * See http://www.gentoo.org/doc/en/gentoo-kernel.xml
 * for a list of supported kernels.

 * 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: net-wireless/ndiswrapper-1.50 failed.
 * Call stack:
 *   ebuild.sh, line 1664:   Called dyn_setup
 *   ebuild.sh, line 719:   Called qa_call 'pkg_setup'
 *   ebuild.sh, line 44:   Called pkg_setup
 *   ndiswrapper-1.50.ebuild, line 39:   Called linux-mod_pkg_setup
 *   linux-mod.eclass, line 465:   Called linux-info_pkg_setup
 *   linux-info.eclass, line 558:   Called die
 *
 * 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/net-wireless/ndiswrapper-1.50/temp/build.log'.
 *

 * Messages for package net-wireless/ndiswrapper-1.50:

 * 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: net-wireless/ndiswrapper-1.50 failed.
 * Call stack:
 *   ebuild.sh, line 1664:   Called dyn_setup
 *   ebuild.sh, line 719:   Called qa_call 'pkg_setup'
 *   ebuild.sh, line 44:   Called pkg_setup
 *   ndiswrapper-1.50.ebuild, line 39:   Called linux-mod_pkg_setup
 *   linux-mod.eclass, line 465:   Called linux-info_pkg_setup
 *   linux-info.eclass, line 558:   Called die
 *
 * 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/net-wireless/ndiswrapper-1.50/temp/build.log'.