Consolidation with CDI-PIO (develop)

Generally, this is !11 (merged) rebased onto the develop branch.

This is the first develop-based version accepted by the Buildbot of ICON: https://buildbot.dkrz.de/grid?branch=m300488/cdi-pio-2-integration

contrib/08ltmain-parallel-printf-patch/ltmain-parallel-printf.patch

+--- a/config/ltmain.sh
++++ b/config/ltmain.sh
+@@ -310,6 +310,18 @@ test -z "$GREP" && {
+ # in the command search PATH.
+ 
+ : ${CP="cp -f"}
++# work around bug in libtool which raises an error when running in a
++# parallel make that should have been handled in printf internally
++printf()
++{
++  while ! builtin printf "$@" ; do
++    errcode=$?
++    # errcode might be EAGAIN=11 which means to simply try again
++    if [ $errcode != 11 ]; then
++      return $errcode
++    fi
++  done
++}
+ : ${ECHO="printf %s\n"}
+ : ${EGREP="$GREP -E"}
+ : ${FGREP="$GREP -F"}