The results of several separate porting efforts are stored here:

xdrlib.o and cdflib.o

  The XDR and netCDF libraries for PowerMac in MacBinary II format, as built
  by Chuck Denham (USGS).

netcdflibs-2.3.2.tar.Z

  A compressed tar file containing a port of the XDR library and netcdf
  library from version 2.3.2 (June 1993), but not ncdump or ncgen.  THINK C
  was used for this port, and the compressed tar file contains the modified
  sources as well as the object libraries in StuffIt form.

HOWTOMAC.DOC, *.make

  Makefiles and notes from from Chuck Denham on how to port netCDF version
  2.02 (December 1991) under MPW.

netcdf-2.02.tar.Z

  Another port of netCDF version 2.02 (December 1991) from an anonymous
  developer who wishes not to be contacted for questions about the port,
  stored as a compressed tar file (netCDF-2.02.tar.Z).

Unidata has not tested any of these ports.