Ruby C/API 1.9.3 Error [Bug?]

So, i’m trying to compile 'n run a simple app with Ruby embedded in C,
this is the code:

// test.c
#include <ruby.h>
#include <stdio.h>

int main(int argc, char *argv[])
{
ruby_init();
rb_eval_string(“puts ‘hello world’”);
ruby_finalize();
return 0;
}

Then, I compile:

g++ -BC:/Ruby193/bin -lmsvcrt-ruby191 -o hello.exe test.c
(Run ok)

an run:
hello.exe

(eval):1: [BUG] Segmentation fault
ruby 1.9.3p0 (2011-10-30) [i386-mingw32]

– Control frame information

c:0006 p:---- s:0014 b:0014 l:000013 d:000013 CFUNC :write
c:0005 p:---- s:0012 b:0012 l:000011 d:000011 CFUNC :puts
c:0004 p:---- s:0010 b:0010 l:000009 d:000009 CFUNC :puts
c:0003 p:0011 s:0006 b:0006 l:0022fc d:000005 EVAL (eval):1
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:0022fc d:0022fc TOP

– Ruby level backtrace information

(eval):1:in <main>' (eval):1:inputs’
(eval):1:in puts' (eval):1:inwrite’

– C level backtrace information

C:\Windows\SysWOW64\ntdll.dll(NtWaitForSingleObject+0x15) [0x775df861]
C:\Windows\syswow64\kernel32.dll(WaitForSingleObjectEx+0x43)
[0x759b1184]
C:\Windows\syswow64\kernel32.dll(WaitForSingleObject+0x12) [0x759b1138]
C:\Users\Gab\Desktop\Programacao\Ruby.C.API\msvcrt-ruby191.dll(rb_vm_bugreport+0xf9)
[0x62e5acc9]
C:\Users\Gab\Desktop\Programacao\Ruby.C.API\msvcrt-ruby191.dll(rb_name_err_mesg_new+0x17a)
[0x62d3a68e]
C:\Users\Gab\Desktop\Programacao\Ruby.C.API\msvcrt-ruby191.dll(rb_bug+0x2f)
[0x62d3b3ef]
C:\Users\Gab\Desktop\Programacao\Ruby.C.API\msvcrt-ruby191.dll(rb_check_safe_str+0x1a4)
[0x62ded27c]
[0x00401262]
C:\Windows\syswow64\kernel32.dll(CheckForReadOnlyResource+0x3bf)
[0x759d9d77]
C:\Windows\SysWOW64\ntdll.dll(RtlKnownExceptionFilter+0xb7) [0x776373e7]

– Other runtime information

What’s happening and how can I correct it?