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[netCDF #PWR-674353]: NETCDF library question

Ted,

> Thank you for your prompt reply. Indeed, I did find the Fortran
> subroutines, e.g. nf_open, in .../lib/libnetcdff.a.
> 
> Previous version of libnetcdff.a seemed to be in directory .libs.
> 
> Below is the result of running nc-config --all.
> 
> After setting FC to pgf90, my config statement was
> 
> config  --prefix=/c/source/netcdf/netcdf-4.1.3-64-pgf90.11.10B  
> CPPFLAGS=-DpgiFortran

As of version 4.1.3, we no longer support having Fortran, C, and C++ libraries 
all in 
the same library.  They have to be linked separately.  An announcement of this 
and the
reasons why are in these 3 postings to the netcdfgroup mailing list:

  
http://www.unidata.ucar.edu/mailing_lists/archives/netcdfgroup/2011/msg00071.html
  
http://www.unidata.ucar.edu/mailing_lists/archives/netcdfgroup/2011/msg00103.html
  
http://www.unidata.ucar.edu/mailing_lists/archives/netcdfgroup/2011/msg00377.html

I'm afraid users will have to change their Makefiles to add -lnetcdff after 
-lnetcdf,
unless you can find a way to use your linker to combine the two libraries into 
one that
will also work for shared libraries.

--Russ


> Ted
> 
> 
> 
> 136 venusa: pwd
> /usc-data/c/source/netcdf/netcdf-4.1.3
> 137 venusa:
> 137 venusa: nc-config --all
> 
> This netCDF 4.1.3 has been built with the following features:
> 
> --cc        -> gcc
> --cflags    ->  -I/c/source/netcdf/netcdf-4.1.3-64-pgf90.11.10B/include 
> -DpgiFortran
> --libs      -> -L/c/source/netcdf/netcdf-4.1.3-64-pgf90.11.10B/lib -lnetcdf
> 
> --cxx       -> g++
> --has-c++   -> yes
> 
> --fc        -> pgf90
> --fflags    -> -g -I/c/source/netcdf/netcdf-4.1.3-64-pgf90.11.10B/include
> --flibs     -> -L/c/source/netcdf/netcdf-4.1.3-64-pgf90.11.10B/lib -lnetcdff 
> -lnetcdf
> --has-f77   -> yes
> --has-f90   -> yes
> 
> --has-dap   -> yes
> --has-nc2   -> yes
> --has-nc4   -> no
> --has-hdf5  -> no
> --has-hdf4  -> no
> --has-pnetcdf-> no
> --has-szlib ->
> 
> --prefix    -> /c/source/netcdf/netcdf-4.1.3-64-pgf90.11.10B
> --includedir-> /c/source/netcdf/netcdf-4.1.3-64-pgf90.11.10B/include
> --version   -> netCDF 4.1.3
> 
> 138 venusa:
> 
> 
> 
> ----- Original Message -----
> From: "Unidata netCDF Support" <address@hidden>
> To: address@hidden
> Cc: address@hidden
> Sent: Tuesday, January 31, 2012 7:49:15 AM
> Subject: [netCDF #PWR-674353]: NETCDF library question
> 
> Hi Ted,
> 
> > I just finished installing the latest version (4.1.3) of netcdf.a
> > on our Linux64 computer venus.
> >
> > Users are getting unresolved references to nf_open and other nf_*
> > subroutines, e.g. nf_inq_dimid.
> >
> > These were in the 4.1.1 version of netcdf.a.
> >
> > Are the nf_* subroutines no longer supported?
> 
> They are still supported (and we're committed to supporting that version
> 2 Fortran API for the foreseeable future).  Some possibilities why
> you don't see them include:
> 
> - They were installed in a separate Fortran library, libnetcdff.a (note
> the "ff"), so to link an application requires -lnetcdf -lnetcdff
> - The 4.1.3 library was built with that API disabled, which is not the
> default, but requires one of the configure options --disable-v2,
> --disable-f77, --disable-fortran, or --enable-c-only.
> - The configure script was unable to find a Fortran compiler that worked
> for Fortran-77 or was unable to link objects created by the C compiler
> with the Fortran compiler it found.
> 
> Looking at the output from running "nc-config --all" or the output of the
> configure script from when the 4.1.3 library was built may clarify what's
> going on.
> 
> --Russ
> 
> > Ted Terpstra
> > General Atomics - Fusion
> > San Diego, CA
> >
> >
> > 4.1.1 netcdf.a
> >
> > 163 venusa: nm /c/source/netcdf/netcdf-4.1.1/lib/libnetcdf.a | fgrep -i 
> > inq_dimid
> > 0000000000000439 T nc_inq_dimid
> > U nc_inq_dimid
> > 0000000000000673 t __netcdf_nf90_inq_dimid_END
> > 0000000000000640 T netcdf_nf90_inq_dimid_
> > U nf_inq_dimid_
> > U nc_inq_dimid
> > 0000000000000373 T nf_inq_dimid_
> >
> > ------------------------------------------------------------------------------------
> >
> > 4.1.3 netcdf.a
> >
> > 164 venusa: nm /c/source/netcdf/netcdf-4.1.3/lib/libnetcdf.a | fgrep -i 
> > inq_dimid
> > U nc_inq_dimid
> > 0000000000000230 T nc_inq_dimid
> > 0000000000000530 T NC3_inq_dimid
> > U NC3_inq_dimid
> > 165 venusa:
> >
> >
> 
> Russ Rew                                         UCAR Unidata Program
> address@hidden                      http://www.unidata.ucar.edu
> 
> 
> 
> Ticket Details
> ===================
> Ticket ID: PWR-674353
> Department: Support netCDF
> Priority: Normal
> Status: Closed
> 
> 

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



Ticket Details
===================
Ticket ID: PWR-674353
Department: Support netCDF
Priority: Normal
Status: Closed