From: Ron Fox <fox@...>
Date: 2008-03-21T18:29:53+09:00
Subject: Re: extending ruby with C++

Try using g++ to link the code rather than cc.  Using cc does not 
include the g++ run-time libraries in the link.

Ron.

7stud -- wrote:
> I'm using this old (2001) mini tutorial:
> 
> http://www.angelfire.com/electronic2/issac/rb_cpp_ext_tut.txt
> 
> When I run make, I get this error:
> 
> $ make
> cc  -bundle  -L"/usr/lib" -o Test.bundle Test.o  -lruby  -lpthread -ldl
> -lobjc
> /usr/bin/ld: Undefined symbols:
> __Unwind_Resume
> std::basic_ostream<char, std::char_traits<char> >::operator<<(int)
> std::basic_ostream<char, std::char_traits<char> >::operator<<(unsigned
> long)
> std::ios_base::Init::Init()
> std::ios_base::Init::~Init()
> std::__throw_bad_alloc()
> std::__throw_length_error(char const*)
> std::cout
> std::basic_ostream<char, std::char_traits<char> >& std::endl<char,
> std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char>
>> &)
> std::basic_ostream<char, std::char_traits<char> >& std::operator<<
> <std::char_traits<char> >(std::basic_ostream<char,
> std::char_traits<char> >&, char const*)
> operator delete(void*)
> operator new(unsigned long)
> ___gxx_personality_v0
> collect2: ld returned 1 exit status
> make: *** [Test.bundle] Error 1
> 
> $ ls
> Makefile        Test.cpp        Test.o          extconf.rb
> 
> I tried that on mac osx.  Any idea what's wrong?