case $THIS_SUB_DEPENDS in
 NV|NOUVEAU) message "${SPELL_COLOR}libdrm${DEFAULT_COLOR}${MESSAGE_COLOR} requested with Nouveau KMS API${DEFAULT_COLOR}" &&
         LIBDRM_NV='y'
         ;;
  INTEL) message "${SPELL_COLOR}libdrm${DEFAULT_COLOR}${MESSAGE_COLOR} requested with Intel KMS API${DEFAULT_COLOR}" &&
         LIBDRM_INTEL='y'
         ;;
 RADEON) message "${SPELL_COLOR}libdrm${DEFAULT_COLOR}${MESSAGE_COLOR} requested with Radeon KMS API${DEFAULT_COLOR}" &&
         LIBDRM_RADEON='y'
         ;;
      *) message "${PROBLEM_COLOR}bogus sub_depends: $SPELL $THIS_SUB_DEPENDS${DEFAULT_COLOR}"
         return 1 ;;
esac

.