chore, update to named-pipe based clittool

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, also provide getopt_long() convenience for clittool ggo generated files

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, don't link clittool with libutil as we don't need pseudo ttys

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

* test/aix:
  chore, don't link clittool with libutil as we don't need pseudo ttys
  chore, also provide getopt_long() convenience for clittool ggo generated files
  chore, update to named-pipe based clittool
Merge branch 'next'

* next:
  chore, don't link clittool with libutil as we don't need pseudo ttys
  chore, also provide getopt_long() convenience for clittool ggo generated files
  chore, update to named-pipe based clittool
  minor, kick epoll dependency from clitoris
  minor, generate a stub getopt.h when none can be found during configure time
  fix, actually define all guards that are defined during the build in c.ac checks
  cosmetics, use sys/stdint.h where *INT??_MAX and friends are needed
  chore, check for sys/stdint.h
  chore, always include getopt_long() in gengetopt generated files
  chore, check for getopt.h
  chore, check if MAP_ANON needs _ALL_SOURCE and possibly define it