| [photran] using netcdf libraries |
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