bldchn, AC_CONFIG_HEADER is obsolete since a long time

Conflicts:
	configure.ac
chore, follow Rudi's uterus changes: use LTDLINCL instead of INCLTDL and add LTDLDEPS

Signed-off-by: Sebastian Freundt <freundt@fresse.org>
Merge branch 'bld/cosmetics' into next

* bld/cosmetics:
  chore, follow Rudi's uterus changes: use LTDLINCL instead of INCLTDL and add LTDLDEPS
  bldchn, AC_CONFIG_HEADER is obsolete since a long time