I don't know about dada, but...
($CPP $INCLUDE $CPPARGS 2>/dev/null) | $PB $PBARGS
and
$CPP =
$INCLUDE = -I$/usr/local/lib/dada/include
$CPPARGS =
$PB = /usr/local/bin/pb
$PBARGS = depends on input flag (-o, -p, -r, -s, or -w) and command line args
Right away we see that it...