* Determining the location of the kernel source code
* Found kernel source directory:
* 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-sound/alsa-driver-1.0.11 failed.
!!! Function linux-info_pkg_setup, Line 537, Exitcode 1
!!! Unable to calculate Linux Kernel version
!!! If you need support, post the topmost build error, NOT this status message.