usage: ./build.sh [-a nt32|nt64]  [-b debug|release]    [-C dir[,..]]  [-D kind[,..]]

                  [-F ipv4|ipv6|offline]   [-h|--help] [-p jobs] [-P]   [-r ALL|LAST]

                  [-r [*[*[*]]]name[,..][:[^|<|<=|>|>=]step,..]] [-R] [-v[v[v]]] [-x]

                  [--as-needed]  [--debug-minipix] [--dump-on-abort]  [--reset-state]

                  [--roar]      [[=]<group>|<variable name>=<variable override>[ ..]]

        -h|--help         Show short/full help screen, respectively.

        -v[v[v]]          Be verbose; -vv: always print package logs; -vvv: logs fileops.

        -x                Set xtrace during package builds.

        <group>[ ..]      One of: dev_packages, dist, host_deps, host_deps_rpm,

                          host_toolchain, host_tools, minipix, native_packages,

                          native_runtime, native_toolchain, native_tools.

                          Prepend w/ `=' to inhibit group-group dependency expansion.

        <variable name>=<variable override>[ ..]

                          Override build or package variable.