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Hello, My guess would be that there is a different libnetcdf available on the system, perhaps compiled with a different compiler? Or perhaps an older version of libnetcdf. Can you find the library you are linking against and run the following? $ nm [library name] | grep nc_get_chunk_cache_ints What does this return? -Ward > Hi, > > I am trying to install netcdf-fortran-4.5.0 and am getting the following > error during "make check": > > > /usr/bin/ld: warning: libgfortran.so.3, needed by > /central/software/OpenMPI/4.0.1//lib/libmpi_usempi.so.40, may conflict with > libgfortran.so.4 > > ../fortran/.libs/libnetcdff.so: undefined reference to > `nc_get_chunk_cache_ints' > > ../fortran/.libs/libnetcdff.so: undefined reference to > `nc_set_var_chunk_cache_ints' > > ../fortran/.libs/libnetcdff.so: undefined reference to > `nc_def_var_chunking_ints' > > ../fortran/.libs/libnetcdff.so: undefined reference to > `nc_set_chunk_cache_ints' > > ../fortran/.libs/libnetcdff.so: undefined reference to > `nc_get_var_chunk_cache_ints' > > ../fortran/.libs/libnetcdff.so: undefined reference to > `nc_inq_var_chunking_ints' > > collect2: error: ld returned 1 exit status > > I've successfully installed netcdf-c-4.7.1. I'm using gcc 7.3.0 and OpenMPI > 4.0.1, and get the same error when using mvapich2 2.3rc1 and mpich 3.3.1. > > I tried setting LIBS="-lnetcdf" as shown in this post > (https://www.unidata.ucar.edu/support/help/MailArchives/netcdf/msg13784.html), > but it had no effect. I then checked my libnetcdff.so file according to this > post > (https://www.unidata.ucar.edu/support/help/MailArchives/netcdf/msg10194.html), > and this was the output: > > > 304: 0000000000010b60 183 FUNC GLOBAL DEFAULT 11 nf_open_ > > 465: 000000000001d970 202 FUNC GLOBAL DEFAULT 11 nf_open_par_ > > 641: 0000000000010dc0 190 FUNC GLOBAL DEFAULT 11 nf_open_mem_ > > 387: 0000000000010b60 183 FUNC GLOBAL DEFAULT 11 nf_open_ > > 548: 000000000001d970 202 FUNC GLOBAL DEFAULT 11 nf_open_par_ > > 724: 0000000000010dc0 190 FUNC GLOBAL DEFAULT 11 nf_open_mem_ > > I've attached config.log for both the netcdf-c and netcdf-fortran builds. I > also attached libnetcdff.so.7. I appreciate your help and please let me know > what else I can try. > > Please ignore my email from a few days ago; I fixed that error. > > Thank you, > Elyse > > Ticket Details =================== Ticket ID: JTG-138613 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.