chore, move simd and intrin checking macros to sxe-compiler.m4
chore, check for Cilk+
minor, check for cilk support beforehand using -fcilkplus
Merge branch 'bld/dist'

* bld/dist:
  minor, check for cilk support beforehand using -fcilkplus
  chore, check for Cilk+
  chore, move simd and intrin checking macros to sxe-compiler.m4
fix, PEBKAC, only free compiled patterns if their respective slot is non-NULL
hygiene, remove unused vars

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, tentative, extend wu-manber's xlcase[] array to capture all uint8_t inputs
Revert "test, adapt glep regressions"

This reverts commit eafdd7cdfa4ec61c1e03ee44019c736e9e3c7bbc.

We're trying a new policy:
All matches occur in the same order as the original pattern file.
minor, write counts to original (unsplit) pattern positions

This might create pressure should we decide to parallelise the guts.
hygiene, perform increments in for-incr coru only in _decomp()

This is so we can (in the future) easily change to a _Cilk_for version
of the loop.
minor, replace intel's manual cpu-dispatcher (via __attribute__) by our own hand-crafted one
Merge branch 'tool/glep'

* tool/glep:
  minor, replace intel's manual cpu-dispatcher (via __attribute__) by our own hand-crafted one
  hygiene, perform increments in for-incr coru only in _decomp()
  minor, write counts to original (unsplit) pattern positions
  Revert "test, adapt glep regressions"
  fix, tentative, extend wu-manber's xlcase[] array to capture all uint8_t inputs
  hygiene, remove unused vars
  fix, PEBKAC, only free compiled patterns if their respective slot is non-NULL