[netCDF #CXR-134834]: linking netCDF library with program written in Fortran

Hi Ana,

Sorry to have taken so long to respond to your question ...
> I have installed the following libraries on my MacBook Pro (OS X 10.8.2) 
> using MacPorts:
> 
> - netcdf @4.2.1.1
> - netcdf-cxx @4.2
> - netcdf-fortran @4.2
> 
> I need to pass the information about the netcdf interface to JULES
> program written in Fortran and in the user manual the following option
> is suggested:
> 
> make COMPILER=gfortran BUILD=run CDF_LIB_PATH=/opt/local/lib \
> CDF_MOD_PATH=/opt/local/include
>
> The values for these options are the directories in which the pre-compiled
> netCDF library (libnc.a) and Fortran 90 module files (those with .mod
> extension) are located respectively. However, in my lib directory I don't
> have libnc.a library, only libnetcdf_c++.a and libnetcdf.a libraries. 

NetCDF doesn't install any library named "libnc.a", only libnetcdff.a (for 
Fortran),
libnetcdf.a (for C), and libnetcdf_c++.a, for C++.  You generally don't need the
C++ library, unless JULES requires it for some reason.  The Fortran netCDF 
library
calls the C library, so you generally need to link Fortran applications with 
both,
as your output from nc-config --flibs shows.  The Makefile also must know where 
the
netcdf.h, netcdf.inc, and netcdf.MOD files are, usually all in the same 
include/ 
directory

> ... In
> my include directory I have NETCDF.mod and TYPESIZES.mod files. Now, when
> I run the above given command in my Terminal, I get the following error:
> ….
> ….
> gfortran -c -fbounds-check rwerr_mod.f90 -J/Users/Nana/JULES/jules_v2.2/MODS 
> -I/Users/Nana/JULES/jules_v2.2/MODS -I/Users/Nana/netcdf/include 
> -I/Users/Nana/JULES/jules_v2.2/UTILS/drhook_dummy
> Fatal Error: Reading module netcdf at line 25 column 2: Expected string
> make[1]: *** [/Users/Nana/JULES/jules_v2.2/libjules.a(rwerr_mod.o)] Error 1
> make: *** [make_SOURCE/MODULES/CONTROL] Error 2

The format of .mod module files is compiler-specific, so if you used a 
different Fortran
compiler than gfortran (or even an earlier version) when you built the netCDF 
Fortran-90
library from source, it might generate such an error.  Also if you just copied 
the .MOD
file into the /Users/Nana/netcdf/include directory from a different directory 
where it was
built for a different platform or compiler, you would see such an error.

Otherwise, I don't know what would cause this.

> When I run nc-config --flibs, I get the following information:
> 
> -L/opt/local/lib -lnetcdff -L/opt/local/lib -lnetcdf -lnetcdf
> 
> and for nc-config --includedir
> 
> /opt/local/include
> 
> Do you have an idea what I could do to fix this?

I suspect you would might better advice asking the JULES help-desk or 
support about this problem, since it may be related to something in
the JULES Makefile.

--Russ

Russ Rew                                         UCAR Unidata Program
address@hidden                      http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: CXR-134834
Department: Support netCDF
Priority: High
Status: Closed