minor, conditionalise on native
chore, use standard AC_PROG_CC
chore, perform clean in build-aux/
minor, check for __mmask64 type
minor, check for _mm512_cmp_epi8_mask() instead of non-existing _mm512_cmpeq_epi8
minor, follow-up, check for compatible routine _mm512_cmpeq_epi8_mask() as well
chore, deliver promise of native=yes|no flag
minor, actually wrap the native/xHost checks in $enable_native conditional
chore, turn native code on by default
chore, turn off native code by default :(
chore, zap to latest yuck
Merge branch 'bld/configure'

* bld/configure:
  chore, zap to latest yuck
  chore, turn off native code by default :(
  chore, turn native code on by default
  minor, actually wrap the native/xHost checks in $enable_native conditional
  chore, deliver promise of native=yes|no flag
  minor, follow-up, check for compatible routine _mm512_cmpeq_epi8_mask() as well
  minor, check for _mm512_cmp_epi8_mask() instead of non-existing _mm512_cmpeq_epi8
  minor, check for __mmask64 type
  chore, perform clean in build-aux/
  chore, use standard AC_PROG_CC
  minor, conditionalise on native
chore, use proper avx512bw intrinsics
minor, output routines/intrinsics dispatched upon glep --version|--help
Merge branch 'tool/glep'

* tool/glep:
  minor, output routines/intrinsics dispatched upon glep --version|--help
  chore, use proper avx512bw intrinsics