chore, define PKG_CHECK_VAR_MSG() without using the latest and greatest autoconf macroes

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

* bld/dist:
  chore, define PKG_CHECK_VAR_MSG() without using the latest and greatest autoconf macroes
chore, kick uschi, umoc and the blood-mm example, too specific and unmaintained to be useful

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, kick ox-matchall, too trivial and experimental

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, sideline um-apfmon, keep the sources but don't build it

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

* bld/dist:
  chore, sideline um-apfmon, keep the sources but don't build it
  chore, kick ox-matchall, too trivial and experimental
  chore, kick uschi, umoc and the blood-mm example, too specific and unmaintained to be useful
hygiene, resort to bog-standard printf() for brag_uri printing in um-quosnp

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, update um-netdania's file headers and sort out includes

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, also check for netdb.h header in c.ac

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, don't leave fwrite() results unnoticed

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

* code/hygiene:
  chore, don't leave fwrite() results unnoticed
  chore, also check for netdb.h header in c.ac
  chore, update um-netdania's file headers and sort out includes
  hygiene, resort to bog-standard printf() for brag_uri printing in um-quosnp
Merge branch 'next'

* next:
  chore, don't leave fwrite() results unnoticed
  chore, also check for netdb.h header in c.ac
  chore, update um-netdania's file headers and sort out includes
  hygiene, resort to bog-standard printf() for brag_uri printing in um-quosnp
  chore, sideline um-apfmon, keep the sources but don't build it
  chore, kick ox-matchall, too trivial and experimental
  chore, kick uschi, umoc and the blood-mm example, too specific and unmaintained to be useful
  chore, define PKG_CHECK_VAR_MSG() without using the latest and greatest autoconf macroes