[daip] install issues

[Eric Greisen]

I have followed up on an enterprise system and find it amazing that
that symbol is not defined.  The string of logic present on our RH 9
machines is also present on the RH enterprise include files and that
symbol must be known.  There is something wrong with your OS
installation, but I guess you can ignore it for now.

Logic order:

ZACTV9 sets _POSIX_SOURCE

then from /usr/include
unistd.h  calls features.h which sets __USE_POSIX
limits.h  calls (if __USE_POSIX) bits/posix1_lim.h  which sets the
          symbol we use.

It works on our enterprise OS and we have not had this complain and
there are lots of enterprise systems out there by now.

Eric Greisen