The current netcdf daily snapshot (https://downloads.unidata.ucar.edu/netcdf/) contains a revised version of the dap support  for netcdf.  It is enabled using --enable-dap and requires libcurl.


For those brave enough to try it, I am specifically looking for the following:

  1. configuration failures
  2. execution failures (e.g. seg faults)
  3. inconsistencies with the libnc-dap implementation 
  4. performance problems vis-a-vis the libnc-dap implementation.

An important note. This version has a logging facility that can sometimes give important information. To turn it on in, say, the sh shell use: 

   OCLOGFILE="" ; export OCLOGFILE

which will turn on logging and send it to stderr. Alternatively use 

   OCLOGFILE="filename.log"; export OCLOGFILE

to append log output to a file named filename.log (or whatever you choose). If you report and error, it can sometimes help if you send along
this logfile output.