SPHInX

When I try to compile sphinx 3.1 as is, it fails with errors like

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/opt/local/sphinx/install/netcdf/include/netcdf_par.h:52:5: error: ‘EXTERNL’ does not name a type
   52 |     EXTERNL int
      |     ^~~~~~~
/opt/local/sphinx/install/netcdf/include/netcdf_par.h:52:5: note: the macro ‘EXTERNL’ had not yet been defined
/opt/local/sphinx/install/netcdf/include/netcdf.h:571: note: it was later defined here
  571 | #define EXTERNL MSC_EXTRA extern /**< Needed for DLL build. */
      | 
SxBinIO.cpp: In member function ‘void SxBinIO::open(const SxString&, Mode)’:
SxBinIO.cpp:209:38: error: ‘nc_create_par’ was not declared in this scope; did you mean ‘nc_rename_var’?
  209 |                                err = nc_create_par (filename.ascii(),
      |                                      ^~~~~~~~~~~~~
      |                                      nc_rename_var
make[5]: *** [Makefile:844: SxBinIO.lo] Error 1
make[5]: Leaving directory '/opt/local/sphinx/source/sphinx-3.1/src/io2'
make[4]: *** [Makefile:884: all-recursive] Error 1
make[4]: Leaving directory '/opt/local/sphinx/source/sphinx-3.1/src/io2'
make[3]: *** [Makefile:698: all] Error 2
make[3]: Leaving directory '/opt/local/sphinx/source/sphinx-3.1/src/io2'
make[2]: *** [Makefile:545: all-recursive] Error 1
make[2]: Leaving directory '/opt/local/sphinx/source/sphinx-3.1/src'
make[1]: *** [Makefile:480: all] Error 2
make[1]: Leaving directory '/opt/local/sphinx/source/sphinx-3.1/src'
make: *** [Makefile:344: all-recursive] Error 1

If I switch the order that `netcdf.h` and `netcdf_par.h` are included in `src/io2/SxBinIO.cpp`, so `netcdf.h` is included first, it works. I've been doing this for several versions now, so you may want to make that change unless it breaks something for you. I'm currently using netcdf 4.9.3, pnetcdf 1.14.0, and hdf5 1.14.6, but I had to do it for slightly earlier versions as well