chore, check for splicing features via SXE_CHECK_*_SPLICE

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, check for mex.h upon SXE_CHECK_MATLAB

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, turn Werror off before doing matlab check

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
hygiene, use matlab_CFLAGS instead of reinventing the wheel in cli/matlab's Makefile

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, refactor mod flags for gand_get_series() into make var MOD_LDFLAGS

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'bld/dist' into next

* bld/dist:
  chore, refactor mod flags for gand_get_series() into make var MOD_LDFLAGS
  hygiene, use matlab_CFLAGS instead of reinventing the wheel in cli/matlab's Makefile
  chore, turn Werror off before doing matlab check
  chore, check for mex.h upon SXE_CHECK_MATLAB
  chore, check for splicing features via SXE_CHECK_*_SPLICE
Merge branch 'next'

* next:
  chore, refactor mod flags for gand_get_series() into make var MOD_LDFLAGS
  hygiene, use matlab_CFLAGS instead of reinventing the wheel in cli/matlab's Makefile
  chore, turn Werror off before doing matlab check
  chore, check for mex.h upon SXE_CHECK_MATLAB
  chore, check for splicing features via SXE_CHECK_*_SPLICE