Неопределенный символ для архитектуры i386 при связывании объекта оболочки SWIG C ++ для Ruby, скомпилированного с параметром -m32

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У меня есть проект SWIG, который генерирует оболочку Ruby C API для статической архивной библиотеки C ++. У меня нет проблем с генерацией и компиляцией кода под 64-битным Linux (протестировано под Fedora и Debian). К сожалению, версия архива для OS X является 32-битной. Я создал 32-разрядную версию Ruby для OS X, чтобы сгенерировать, скомпилировать и связать общий объект, который будет использоваться в качестве собственного расширения Ruby C:

$ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [i386-darwin11]

Все объекты скомпилированы с -m32 флаг:

$ g++ -m32 -Wall -g -c -fPIC -rdynamic ../src/CPPExampleWrapper.cpp ../src/CPPExampleException.cpp ../src/CPPExampleObject.cpp ../src/CPPExampleCallbackFunctor.cpp -I../include/ -I../lib/include/

и связаны соответственно:

g++ -m32 -shared -fPIC -o ../lib/cppexample.so ./bin/CPPExampleWrapper.o ../qa_cpp_utils/bin/CPPExampleObject.o ../qa_cpp_utils/bin/CPPExampleCallbackFunctor.o ../qa_cpp_utils/lib/libcppexamplearchive.a -framework CoreFoundation -lpthread

При связывании я получаю сообщение об ошибке, указывающее, что символы, указанные в CPPExampleWrapper.o, не определены для архитектуры i386:

Undefined symbols for architecture i386:
"_rb_big2long", referenced from:
SWIG_AUX_NUM2LONG(unsigned long*)in CPPExampleWrapper.o
"_rb_big2ulong", referenced from:
SWIG_AUX_NUM2ULONG(unsigned long*)in CPPExampleWrapper.o
"_rb_cFalseClass", referenced from:
_rb_class_of in CPPExampleWrapper.o
"_rb_cFixnum", referenced from:
_rb_class_of in CPPExampleWrapper.o
"_rb_cNilClass", referenced from:
_rb_class_of in CPPExampleWrapper.o
"_rb_cObject", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
_SWIG_Ruby_SetModule in CPPExampleWrapper.o
_SWIG_Ruby_define_class in CPPExampleWrapper.o
"_rb_cSymbol", referenced from:
_rb_class_of in CPPExampleWrapper.o
"_rb_cTrueClass", referenced from:
_rb_class_of in CPPExampleWrapper.o
"_rb_check_type", referenced from:
_SWIG_Ruby_GetModule in CPPExampleWrapper.o
_SWIG_Ruby_ConvertPtrAndOwn in CPPExampleWrapper.o
"_rb_const_get", referenced from:
_SWIG_Ruby_NewPointerObj in CPPExampleWrapper.o
"_rb_data_object_alloc", referenced from:
_SWIG_Ruby_SetModule in CPPExampleWrapper.o
_SWIG_Ruby_NewClassInstance in CPPExampleWrapper.o
_SWIG_Ruby_NewPointerObj in CPPExampleWrapper.o
"_rb_define_alloc_func", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
"_rb_define_class", referenced from:
getNullReferenceError()      in CPPExampleWrapper.o
getObjectPreviouslyDeletedError()      in CPPExampleWrapper.o
_SWIG_Ruby_SetModule in CPPExampleWrapper.o
"_rb_define_class_under", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
_SWIG_Ruby_define_class in CPPExampleWrapper.o
"_rb_define_const", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
"_rb_define_method", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
"_rb_define_module", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
_SWIG_Ruby_InitRuntime in CPPExampleWrapper.o
"_rb_define_module_function", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
"_rb_define_readonly_variable", referenced from:
_SWIG_Ruby_SetModule in CPPExampleWrapper.o
"_rb_define_singleton_method", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
"_rb_eArgError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
_wrap_new_JobOrder(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_src_location_set(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_src_location_get(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_dst_location_set(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_dst_location_get(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_xfer_params_set(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
...
"_rb_eFatal", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eIOError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eIndexError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eNoMemError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eRangeError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eRuntimeError", referenced from:
getNullReferenceError()      in CPPExampleWrapper.o
getObjectPreviouslyDeletedError()      in CPPExampleWrapper.o
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eSyntaxError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eTypeError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_eZeroDivError", referenced from:
SWIG_Ruby_ErrorType(int)   in CPPExampleWrapper.o
"_rb_funcall", referenced from:
_SWIG_RubyRemoveTracking in CPPExampleWrapper.o
"_rb_gv_get", referenced from:
_SWIG_Ruby_GetModule in CPPExampleWrapper.o
_SWIG_RubyInitializeTrackings in CPPExampleWrapper.o
"_rb_gv_set", referenced from:
_SWIG_Ruby_GetModule in CPPExampleWrapper.o
_SWIG_RubyInitializeTrackings in CPPExampleWrapper.o
"_rb_hash_aref", referenced from:
_SWIG_RubyInstanceFor in CPPExampleWrapper.o
"_rb_hash_aset", referenced from:
_SWIG_RubyAddTracking in CPPExampleWrapper.o
"_rb_hash_new", referenced from:
_SWIG_RubyInitializeTrackings in CPPExampleWrapper.o
"_rb_inspect", referenced from:
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_int2big", referenced from:
_SWIG_RubyPtrToReference in CPPExampleWrapper.o
_SWIG_RubyObjectToReference in CPPExampleWrapper.o
SWIG_From_int(int)   in CPPExampleWrapper.o
"_rb_intern", referenced from:
_SWIG_Ruby_InitRuntime in CPPExampleWrapper.o
_SWIG_RubyInitializeTrackings in CPPExampleWrapper.o
_SWIG_Ruby_NewPointerObj in CPPExampleWrapper.o
"_rb_iv_get", referenced from:
_SWIG_Ruby_NewPointerObj in CPPExampleWrapper.o
_SWIG_Ruby_MangleStr in CPPExampleWrapper.o
"_rb_iv_set", referenced from:
_SWIG_Ruby_NewClassInstance in CPPExampleWrapper.o
_SWIG_Ruby_NewPointerObj in CPPExampleWrapper.o
"_rb_ivar_get", referenced from:
_SWIG_RubyInitializeTrackings in CPPExampleWrapper.o
"_rb_ivar_set", referenced from:
_SWIG_RubyInitializeTrackings in CPPExampleWrapper.o
"_rb_num2long", referenced from:
_SWIG_RubyReferenceToObject in CPPExampleWrapper.o
SWIG_AUX_NUM2LONG(unsigned long*)in CPPExampleWrapper.o
"_rb_num2ulong", referenced from:
SWIG_AUX_NUM2ULONG(unsigned long*)in CPPExampleWrapper.o
"_rb_obj_classname", referenced from:
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_obj_is_kind_of", referenced from:
_SWIG_Ruby_ConvertPtrAndOwn in CPPExampleWrapper.o
"_rb_raise", referenced from:
_wrap_new_JobOrder(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_src_location_set(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_src_location_get(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_dst_location_set(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_dst_location_get(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_xfer_params_set(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_JobOrder_xfer_params_get(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
...
"_rb_rescue", referenced from:
SWIG_AsVal_unsigned_SS_long(unsigned long, unsigned long*)in CPPExampleWrapper.o
SWIG_AsVal_long(unsigned long, long*)in CPPExampleWrapper.o
"_rb_str_append", referenced from:
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_str_cat", referenced from:
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_str_cat2", referenced from:
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_str_new", referenced from:
SWIG_FromCharPtrAndSize(char const*, unsigned long)in CPPExampleWrapper.o
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_str_new_cstr", referenced from:
_SWIG_Ruby_NewClassInstance in CPPExampleWrapper.o
_SWIG_Ruby_NewPointerObj in CPPExampleWrapper.o
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_string_value_ptr", referenced from:
_wrap_XferParams_exclude_patterns_set(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_wrap_CPPTransfer_SetExcludePattern(int, unsigned long*, unsigned long)in CPPExampleWrapper.o
_SWIG_Ruby_MangleStr in CPPExampleWrapper.o
SWIG_AsCharPtrAndSize(unsigned long, char**, unsigned long*, int*)in CPPExampleWrapper.o
Ruby_Format_TypeError(char const*, char const*, char const*, int, unsigned long)in CPPExampleWrapper.o
"_rb_uint2big", referenced from:
SWIG_From_unsigned_SS_long(unsigned long)in CPPExampleWrapper.o
"_rb_undef_alloc_func", referenced from:
_Init_CPPExample in CPPExampleWrapper.o
"_rb_undef_method", referenced from:
_SWIG_Ruby_define_class in CPPExampleWrapper.o
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status

Возможно, не случайно все неопределенные символы являются членами Ruby C API. Я что-то упускаю во время компиляции или компоновки? С другой стороны, возможно, что-то не так с 32-битной сборкой OS X Ruby, созданной для облегчения создания этого расширения?

Любая обратная связь с благодарностью.

Ура,

Джеймс