gcc version-script not hiding all local symbols

I'm trying to use --version-script flag to hide a huge list of unwanted symbols to keep only the symbols that define the interface of my shared library. Here is the call to linker:

/usr/bin/cc -fPIC  -Wl,--version-script=/home/bil/Documents/matlab/tolibrary/dll_c_rowmj_cont_nirall/dll/test.map -shared -Wl,-soname,libmatlab_lib.so -o libmatlab_lib.so CMakeFiles/matlab_lib.dir/any.c.o CMakeFiles/matlab_lib.dir/classificJob.c.o CMakeFiles/matlab_lib.dir/container.cpp.o CMakeFiles/matlab_lib.dir/container_helper_functions.c.o CMakeFiles/matlab_lib.dir/container_wrap.cpp.o CMakeFiles/matlab_lib.dir/decisionJob.c.o CMakeFiles/matlab_lib.dir/initJob.c.o CMakeFiles/matlab_lib.dir/mean.c.o CMakeFiles/matlab_lib.dir/nirJob.c.o CMakeFiles/matlab_lib.dir/nirJob_initialize.c.o CMakeFiles/matlab_lib.dir/nirJob_terminate.c.o CMakeFiles/matlab_lib.dir/rtGetInf.c.o CMakeFiles/matlab_lib.dir/rtGetNaN.c.o CMakeFiles/matlab_lib.dir/rt_nonfinite.c.o CMakeFiles/matlab_lib.dir/zscore.c.o  -lstdc++ -lm

And here is the test.map file:

FOO {
  global: container_to_string; nirJob; decisionJob; initJob; classificJob; # explicitly list symbols to be exported
  local: *;         # hide everything else
};

Here is the output of nm command on the .so

nm -D libmatlab_lib.so 
                 U ceil
000000000000215f T classificJob
0000000000009fad T container_to_string
                 U __cxa_allocate_exception
                 U __cxa_atexit
                 U __cxa_begin_catch
                 U __cxa_end_catch
                 w __cxa_finalize
                 U __cxa_rethrow
                 U __cxa_throw
0000000000026cc5 T decisionJob
                 U floor
0000000000000000 A FOO
                 U fwrite
                 U get_double
                 w __gmon_start__
                 U __gxx_personality_v0
0000000000026d19 T initJob
                 w _ITM_deregisterTMCloneTable
                 w _ITM_registerTMCloneTable
                 U malloc
                 U memcmp
                 U memcpy
                 U memmove
                 U memset
0000000000026ec2 T nirJob
                 U sqrt
                 U __stack_chk_fail
                 U stderr
                 U strcpy
                 U _Unwind_Resume
                 U _ZdlPv
                 U _ZdlPvm
                 U _ZNKSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEE3strEv
                 U _ZNKSt8__detail20_Prime_rehash_policy14_M_need_rehashEmmm
                 U _ZNSaIcEC1ERKS_
                 U _ZNSaIcEC1Ev
                 U _ZNSaIcEC2ERKS_
                 U _ZNSaIcED1Ev
                 U _ZNSaIcED2Ev
                 U _ZNSolsEd
                 U _ZNSolsEf
                 U _ZNSolsEi
                 U _ZNSolsEj
                 U _ZNSolsEl
                 U _ZNSolsEm
                 U _ZNSolsEs
                 U _ZNSolsEt
                 U _ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEC1ESt13_Ios_Openmode
                 U _ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev
                 U _ZNSt8ios_base4InitC1Ev
                 U _ZNSt8ios_base4InitD1Ev
                 U _ZNSt9exceptionD2Ev
                 U _Znwm
                 U _ZSt11_Hash_bytesPKvmm
                 U _ZSt17__throw_bad_allocv
                 U _ZSt19__throw_logic_errorPKc
                 U _ZSt20__throw_length_errorPKc
                 U _ZSt4cout
                 U _ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE
                 U _ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_a
                 U _ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_h
                 U _ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc
                 U _ZTISt9exception
                 U _ZTVN10__cxxabiv120__si_class_type_infoE
                 U _ZTVSt9exception

The symbols I want to export are there but there is some extra stuff that I can't get rid off. Is there a readon ld adds all those symbols? How can I get rid of them?

Thank you.