GMP library, compilation error in C ++, MinGW, Code :: Blocks

I built GMP for MinGW. The IDE I use is Code :: Blocks. I have no problem with GMP C functions. But I have problems with C ++. The program I tried to run is simple, like this,

#include<iostream>
#include<gmpxx.h>
using namespace std;

main()
{
    mpz_class a;
    a=12345;
    cout<<"value"<<a<<"\n";
    return 0;
}

And the errors that I get

F:\Compilers\C_Libraries\GMP\lib\libgmpxx.a(osmpz.o):osmpz.cc|| undefined reference to `__gmpz_get_str'|
F:\Compilers\C_Libraries\GMP\lib\libgmpxx.a(osfuns.o):osfuns.cc:(.rdata+0x1c)||undefined reference to `__gmp_asprintf_memory'|
F:\Compilers\C_Libraries\GMP\lib\libgmpxx.a(osfuns.o):osfuns.cc:(.rdata+0x20)||undefined reference to `__gmp_asprintf_reps'|
F:\Compilers\C_Libraries\GMP\lib\libgmpxx.a(osdoprnti.o):osdoprnti.cc|| undefined reference to `__gmp_doprnt_integer'|
F:\Compilers\C_Libraries\GMP\lib\libgmpxx.a(osdoprnti.o):osdoprnti.cc|| undefined reference to `__gmp_asprintf_final'|
||=== Build finished: 5 errors, 0 warnings ===|

Now, some additional data:

• I have no problem with C functions. And also, if I remove cout <the operator compiles and works fine. Probably the problem is with overloaded operators.
• libgmpxx.a and libgmp.a are associated with the compiler. This is also seen in the error messages ...
• The problem is probably related only to libgmpxx.a. So, I created the library again, but the files are the same.
• GMP MSYS MinGW. http://www.cs.nyu.edu/exact/core/gmp/ http://suchideas.com/journal/2007/07/installing-gmp-on-windows/
• GMP, , - 5.0.4.

, , ? ? , , 5.0.4, .: (