You need to be consistent with your fortran compiler and its flags
between compiling netcdf and compiling FVCOM. Did you build the fortran
part of netcdf? Look through the output of "make check" and configure
to see what it's doing in terms of the fortran. Fortran flags to
watch out for are those involving underscores (-fno_second_underscore?).
Kate
On Mon, Feb 11, 2008 at 05:58:50PM -0600, Mikhail Umorin wrote:
> Hello ???
>
> I am trying to compile netCDF to use with FVCOM (they require the
> netCDF library manually compiled with the same compiler -
>
> Linux localhost 2.6.22.12-desktop-1mdv #1 SMP Tue Nov 20 13:15:05 EST
> 2007 x86_64 Intel(R) Xeon(R) CPU 5160 @ 3.00GHz GNU/Linux
>
> gcc (GCC) 4.2.2 20071128 (prerelease) (4.2.2-3.1mdv2008.0)
>
>
> "make check" passes w/o any problems
>
> ) at the linking stage I get
> ...
> .... viscofh.o print_vals.o rho_mean.o viz.o -L/usr/local/lib
> -lnetcdff
> /usr/local/lib/libnetcdff.a(netcdf.o): In function
> `__netcdf__nf90_get_var_7d_eightbytereal':
> netcdf.f90:(.text+0xd0e): undefined reference to `nf_get_varm_double'
> netcdf.f90:(.text+0xed6): undefined reference to `nf_get_vars_double'
> netcdf.f90:(.text+0x1086): undefined reference to `nf_get_vara_double'
> /usr/local/lib/libnetcdff.a(netcdf.o): In function
> `__netcdf__nf90_get_var_6d_eightbytereal':
> netcdf.f90:(.text+0x1d3d): undefined reference to `nf_get_varm_double'
> netcdf.f90:(.text+0x1ede): undefined reference to `nf_get_vars_double'
> netcdf.f90:(.text+0x2067): undefined reference to `nf_get_vara_double'
> /usr/local/lib/libnetcdff.a(netcdf.o): In function
> `__netcdf__nf90_get_var_5d_eightbytereal':
> netcdf.f90:(.text+0x2c84): undefined reference to `nf_get_varm_double'
> netcdf.f90:(.text+0x2dfe): undefined reference to `nf_get_vars_double'
> netcdf.f90:(.text+0x2f60): undefined reference to `nf_get_vara_double'
> /usr/local/lib/libnetcdff.a(netcdf.o): In function
> `__netcdf__nf90_get_var_4d_eightbytereal':
> netcdf.f90:(.text+0x3ae6): undefined reference to `nf_get_varm_double'
> netcdf.f90:(.text+0x3c39): undefined reference to `nf_get_vars_double'
> netcdf.f90:(.text+0x3d74): undefined reference to `nf_get_vara_double'
> /usr/local/lib/libnetcdff.a(netcdf.o): In function
> `__netcdf__nf90_get_var_3d_eightbytereal':
> ....
>
> and so on (about several 100 lines)
>
> if I link against the binary (3.6.2 x86_64) I get:
>
> ...
> -L/usr/local/netCDF/lib -lnetcdf
> /usr/local/netCDF/lib/libnetcdf.a(netcdf.o): In function
> `__netcdf__nf90_inq_libvers':
> /shecky/netcdf/n3_shecky/netcdf-3.6.2/f90/netcdf_file.f90:5: undefined
> reference to `_gfortran_copy_string'
> /usr/local/netCDF/lib/libnetcdf.a(netcdf.o): In function
> `__netcdf__nf90_strerror':
> /shecky/netcdf/n3_shecky/netcdf-3.6.2/f90/netcdf_file.f90:12: undefined
> reference to `_gfortran_copy_string'
> /usr/local/netCDF/lib/libnetcdf.a(netcdf.o): In function
> `__netcdf__nf90_inquire_dimension':
> /shecky/netcdf/n3_shecky/netcdf-3.6.2/f90/netcdf_dims.f90:43: undefined
> reference to `_gfortran_copy_string'
> /usr/local/netCDF/lib/libnetcdf.a(netcdf.o): In function
> `__netcdf__nf90_get_att_text':
> /shecky/netcdf/n3_shecky/netcdf-3.6.2/f90/netcdf_attributes.f90:75:
> undefined reference to `_gfortran_copy_string'
> /usr/local/netCDF/lib/libnetcdf.a(netcdf.o): In function
> `__netcdf__nf90_inquire_variable':
> /shecky/netcdf/n3_shecky/netcdf-3.6.2/f90/netcdf_variables.f90:67:
> undefined reference to `_gfortran_copy_string'
> collect2: ld returned 1 exit status
> make: *** [fvcom] Error 1
>
> In any case it seems that the linker finds unresolved symbols in the
> netCDF library itself (FVCOM compiles and runs w/o netCDF with no
> problems)
>
> What can be the problem? I would appreciate any help.
>
> Mikhail.
>
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