I have difficulties finding out why when I compile a program c or fortran I have the above message and at end:
ld: symbol(s) not found for architecture x86_64
I need help overcome the problem limiting the use of my system for my scientific activities.
MacBook Pro (15-inch Early 2011), Mac OS X (10.7.5)
fipoucat,
which compiler(s) are you using? Are your programs reliant upon non-standard libraries? If so, are they provided by third parties, or are you compiling them yourself? Do you have examples of some of the symbols which weren’t found? Perhaps some of them will be recognizable as belonging to a standard library.
It happens with both gfortan, gcc and ifort and icc I mainly use to compile my programs.
Below an error message when I compile wrf model.
mpif90 -f90=ifort -o tc.exe -O3 -ip -fp-model precise -w -ftz -align all -fno-alias -FR -convert big_endian -Wl,-stack_addr,0xF10000000 -Wl,-stack_size,0x64000000 tc_em.o ../dyn_em/module_initialize_real.o libwrflib.a /Users/sarr/nwrf/WRFV3/external/fftpack/fftpack5/libfftpack.a /Users/sarr/nwrf/WRFV3/external/io_grib1/libio_grib1.a /Users/sarr/nwrf/WRFV3/external/io_grib_share/libio_grib_share.a /Users/sarr/nwrf/WRFV3/external/io_int/libwrfio_int.a -L/Users/sarr/nwrf/WRFV3/external/esmf_time_f90 -lesmf_time /Users/sarr/nwrf/WRFV3/external/RSL_LITE/librsl_lite.a /Users/sarr/nwrf/WRFV3/frame/module_internal_header_util.o /Users/sarr/nwrf/WRFV3/frame/pack_utils.o -L/Users/sarr/nwrf/WRFV3/external/io_netcdf -lwrfio_nf -L/Users/sarr/local/ncdf_int/lib -lnetcdff -lnetcdf
Undefined symbols for architecture x86_64:
"_module_domain_type_mp_program_name_", referenced from:
_MAIN__ in tc_em.o
_input_wrf_ in libwrflib.a(input_wrf.o)
_output_wrf_ in libwrflib.a(output_wrf.o)
ld: symbol(s) not found for architecture x86_64
make[1]: [em_real] Error 1 (ignored)
fipoucat,
does libwrflib.a come with your FORTRAN compiler, or is it part of that WRFV3 set of libraries? Perhaps another library or two needs to be added to your compilation line, so the compiler will know where to find those missing symbols?
I had problem with my mac which is very slow since I upgraded to 10.9. There is a slight improvment.
For your last question libwrflib.a is generated during the compilition process and resides in directory /WRFV3/main
fipoucat,
there’s no -Llibrary_folder parameter on your mpif90 command line above to tell the linker to look in the /WRFV3/main folder for any library. Would it need such a parameter?
Since libwrflib.a is generated during compilation, do you also have documentation on it, to discover where it expects to find the _input_wrf_ and _output_wrf_ functions? That is, are they supposed to be in a different compiler-generated library, or are they supposed to be provided by whatever code is making use of the lifwrflib.a library?
Undefined symbols for architecture x86_64:
