[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[netCDF #LYS-656454]: undefined reference to nc functions

Hello,

It looks like there might be a runtime problem; try setting the LD_LIBRARY_PATH 
environmental variable to /usr/local/lib, e.g.

    $ export LD_LIBRARY_PATH=/usr/local/lib

This tells the linker where to find the shared libraries at runtime.  If this 
doesn't work, what is the output when you run nc-config --all ?

Thanks!

-Ward

>/ Hi!
> 
> I have some problems with netcdf library and i hope you can help me
> 
> I use Ubuntu 16.04. I am trying to run the sample in C to read data with
> netCDF program
> 
> https://www.unidata.ucar.edu/software/netcdf/examples/programs/
> 
> and i have the next error:
> 
> simple_xy_rd.c:(.text+0x2f): undefined reference to `nc_open'
> simple_xy_rd.c:(.text+0x4b): undefined reference to `nc_strerror'
> simple_xy_rd.c:(.text+0x80): undefined reference to `nc_inq_varid'
> simple_xy_rd.c:(.text+0x9c): undefined reference to `nc_strerror'
> simple_xy_rd.c:(.text+0xd4): undefined reference to `nc_get_var_int'
> simple_xy_rd.c:(.text+0xf0): undefined reference to `nc_strerror'
> simple_xy_rd.c:(.text+0x19e): undefined reference to `nc_close'
> simple_xy_rd.c:(.text+0x1ba): undefined reference to `nc_strerror'
> collect2: error: ld returned 1 exit status
> 
> I thought maybe he's not properly linking the library, so I tried the
> next line to see where the netcdf.h is :
> 
> nc-config --cflags
> > -I/usr/local/include
> 
> I tried to compile the file with the next code :
> 
> gcc -Wall -I/usr/local/include -c simple_xy_rd.c -o simple_xy_rd
> 
> It doesn't show any error but It creates an object that is not executable.
> 
> Before installing netcdf I installed the packages zlib and hdf5-1.8.10-patch1 
> as recommended. zlib pacakage did not present any problem. When I used "make" 
> it present the following message:
> Makefile:553: recipe for target 'h5tools_str.lo' failed
> make[2]: *** [ h5tools_str.lo ] Error 1
> make[2]: Leaving directory 
> '/home/gnaro/Descargas/hdf5-1.8.10-patch1/tools/lib'
> Makefile:497: recipe for target 'all-recursive' failed
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory '/home/ gnaro/Descargas/hdf5-1.8.10-patch1 /tools'
> Makefile:539: recipe for target 'all-recursive' failed
> make: *** [all-recursive] Error 1
> I thank you for any help you can give me
> 
> Best regards
> 
> Genaro Soriano
> 
> 


Ticket Details
===================
Ticket ID: LYS-656454
Department: Support netCDF
Priority: Normal
Status: Closed
===================
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata 
inquiry tracking system and then made publicly available through the web.  If 
you do not want to have your interactions made available in this way, you must 
let us know in each email you send to us.