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Re: [photran] using netcdf libraries
I think the -l command, in the box where you put the actual library names, prepends the library names with "lib" and appends ".a" to them. So if you specify it to look for a library named "library1", it will search for a library named "liblibrary1" in the library search paths specified. Navigating to the actual library didn't seem to work either. 

So try appending lib to your library. And searching for its original name, without the ".a". See if that works

On Thu, Jul 28, 2011 at 11:34 PM, João Palma <palma.joao@xxxxxxxxx> wrote:

Dear All,

 

(Before anything, great Eclipse, great Photran! – Thanks to all who make this possible!)

 

I program for some years now as a need, but I’m not a “real” programmer so,  sorry for some “less correct nomenclature”.

I’ve been trying for days to use NETCDF libraries with my Eclipse Helios and Photran 6 on Windows 7 (32Bit). And I couldn’t find a post on this. So here it goes:

 

Intro: NETDCF is a binary format and the name stands for NETwork Common Data Format and is widely use for scientific data transfer.

Info on NETCDF is available at http://www.unidata.ucar.edu/software/netcdf/

 

At this website they release binaries and source code to use.

At this stage I´m  trying to set up the use of the libraries with their own a sample fortran code:

Available here: http://www.oifii.org/ns-org/nsd/ar/netcdf-4.0/examples/F90/nc4_simple_xy_wr.f90

 

I downloaded the version 4.0 (binary-netcdf-4.0_gfortran_gfortran_c++.tar.gz - Binary distribution of netcdf-4.0 on linux_2.6-x86_64) here:

http://www.unidata.ucar.edu/downloads/netcdf/netcdf-4_0/index.jsp

 

I downloaded the linux version, as I assume cygwin will deal with it as it deals with the Photran…

 

this comes with a structure of 4 folders as:

bin

include

lib

share

 

which I added to a subfolder called netcdf40 of my Photran Project.

 

After reading the “Compiling and Linking with the NetCDF Library” intructions  (http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-f90/Compiling-and-Linking-with-the-NetCDF-Library.html#Compiling-and-Linking-with-the-NetCDF-Library )

 

I then went to my Photran project properties and added the include path and the lib path as

 

Fortran Build ->Directories -> Include paths: "${workspace_loc:/${ProjName}/netcdf40/include}"

GNU Fortran Linker ->Libraries -> Include paths: "${workspace_loc:/${ProjName}/netcdf40/lib}"

 

 

When compiling, it seems it grabs the include path, but it does not recognizes the functions/routines in the library. Here’s the compiling output:

 

**** Build of configuration Debug for project readNETCDF_test ****

 

make all

Building target: readNETCDF_test

Invoking: GNU Fortran Linker

gfortran -L"E:\Programming_tools\eclipse\readNETCDF_test\netcdf40\lib" -o"readNETCDF_test"  ./nc4_simple_xy_wr.o  

cygwin warning:

  MS-DOS style path detected: E:\Programming_tools\eclipse\readNETCDF_test\Debug

  Preferred POSIX equivalent is: /cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug

  CYGWIN environment variable option "nodosfilewarning" turns off this warning.

  Consult the user's guide for more details about POSIX paths:

    http://cygwin.com/cygwin-ug-net/using.html#using-pathnames

./nc4_simple_xy_wr.o: In function `nc4_simple_xy_wr':

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:59: undefined reference to `___netcdf_MOD_nf90_create'

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:62: undefined reference to `___netcdf_MOD_nf90_def_dim'

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:63: undefined reference to `___netcdf_MOD_nf90_def_dim'

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:72: undefined reference to `___netcdf_MOD_nf90_def_var_manydims'

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:75: undefined reference to `___netcdf_MOD_nf90_enddef'

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:80: undefined reference to `___netcdf_MOD_nf90_put_var_2d_fourbyteint'

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:84: undefined reference to `___netcdf_MOD_nf90_close'

./nc4_simple_xy_wr.o: In function `check':

/cygdrive/e/Programming_tools/eclipse/readNETCDF_test/Debug/../nc4_simple_xy_wr.f90:93: undefined reference to `___netcdf_MOD_nf90_strerror'

collect2: ld returned 1 exit status

make: *** [readNETCDF_test] Error 1

 

I also tried other different ways to put the –L in the miscellaneous section (and removing from Libraries) but the problem persists.

 

What am I doing wrong?

Any help would be appreciated.

 

João Palma



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