Reference to NETCDF_INCDIR no longer required in CPPFLAGS

[m.hadfield]

The platform-specific make files all contain the following

         CPPFLAGS += -I$(NETCDF_INCDIR)

This is a relic of the days when the netCDF F77 definitions were imported via an include statement in mod_netcdf.F

#include "netcdf.inc"

This is unnecessary now that the netCDF F90 interface is imported via a USE statement. The only place where NETCDF_INCDIR is required now is in the master makefile:

$(SCRATCH_DIR)/$(NETCDF_MODFILE): | $(SCRATCH_DIR)
	cp -f $(NETCDF_INCDIR)/$(NETCDF_MODFILE) $(SCRATCH_DIR)

$(SCRATCH_DIR)/$(TYPESIZES_MODFILE): | $(SCRATCH_DIR)
	cp -f $(NETCDF_INCDIR)/$(TYPESIZES_MODFILE) $(SCRATCH_DIR)

[m.hadfield]

So what I'm suggesting is that the unnecessary line be removed.

[arango]

Done. I added the few comments to the PGI configuration files. I added a commented option to enforce IEEE floating-point operations. This allows to produce identical solutions with all an new version of the PGI compiler.