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Re: 20050118: NetCDF Fortran 90 Interface

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  • Subject: Re: 20050118: NetCDF Fortran 90 Interface
  • Date: 18 Jan 2005 09:48:59 -0700
Ed Hartnett <address@hidden> writes:

> Unidata Support <address@hidden> writes:
> 
> > ------- Forwarded Message
> > 
> > >To: address@hidden
> > >From: Reto Stockli <address@hidden>
> > >Subject: NetCDF Fortran 90 Interface
> > >Organization: University Irchel
> > >Keywords: 200501181245.j0ICj4v2010748 netCDF 3.6.0 Fortran90
> > 
> > Dear NetCDF team,
> > 
> > I have compiled the NetCDF 3.6.0 on OSX (GCC and Absoft Fortran 8.0)  
> > and Linux (GCC and PGF). The library works. However, if I use the new  
> > NF_90 commands from fortran, I have to feed the netcdf.o during the  
> > linking process, even though I have linked to the library itself. So  
> > your example:
> > 
> > http://my.unidata.ucar.edu/content/software/netcdf/docs/netcdf-f90/ 
> > Compiling-and-Linking-with-the-NetCDF-Library.html#Compiling-and- 
> > Linking-with-the-NetCDF-Library
> > ln -s /usr/local/netcdf/src/f90/netcdf.mod .
> > f90 -c mymodule.f90
> > f90 -o myprogram myprogram.o -L/usr/local/netcdf/lib -lnetcdf
> > 
> > gives me undefined symbols. If I link the object file, it works fine.  
> > This would look like:
> > 
> > ln -s /usr/local/netcdf/src/f90/netcdf.mod .
> > f90 -c mymodule.f90
> > f90 -o myprogram myprogram.o  
> > /usr/local/lib/netcdf-3.6.0/src/f90/netcdf.o -L/usr/local/netcdf/lib  
> > -lnetcdf
> > 
> > This resolves the problem. The libnetcdf.a is in the directory  
> > /usr/local/netcdf/lib/, so this is not the problem. How can I compile  
> > my fortran code without linking the object file itself but indicating  
> > the library only? Is there something I am missing?
> > 
> > Cheers,
> > Reto
> > 
> > --
> > Reto Stöckli
> > ETH/IAC (NFS Klima) & NASA/GSFC Code 913 (SSAI)
> > Office: University Irchel, Building 25 Room J53
> > Phone:  +41 (0)1 635 5209      Fax:    +41 (0)1 362 5197
> > Winterthurerstrasse 190        Email:  address@hidden
> > 8057 Zürich Switzerland                        address@hidden
> > 
> > http://earthobservatory.nasa.gov
> > http://www.iac.ethz.ch/staff/stockli
> > 
> 
> Howdy!
> 
> Firstly, can I ask if "make test" worked when you installed netcdf?
> 
> If that worked, than the test F90 program is properly linking to the
> netcdf library.
> 
> If our test program can do it, so can your application! ;-)
> 
> Please send me the output from make test, if it failed. If it
> succeeded, I suggest you take a look at your -L and -l options during
> compile, to ensure that they are what they need to be.
> 
> Thanks,
> 
> Ed
> -- 
> Ed Hartnett  -- address@hidden

-- 
Ed Hartnett  -- address@hidden