I have these packages installed on my OpenSUSE 11.3:

i | libstdc++45       | Standard shared library for C++                 | package
i | libstdc++45-devel | Contains files and libraries for development    | package

But when i'm trying to compile this C++ code:

#include <stdio.h>
#include <tr1/regex>

using namespace std;

int main() {
    int test[2];
    const tr1::regex pattern(".*");

    test[0] = 1;

    if (tr1::regex_match("anything", pattern) == false) {
        printf("Pattern does not match.\n");
    }
    return 0;
}

using

g++ -pedantic -g -O1 -o ./main.o ./main.cpp

It outputs this errors:

./main.cpp: In function ‘int main()’:
./main.cpp:13:43: error: ‘printf’ was not declared in this scope
radek@mypc:~> nano main.cpp
radek@mypc:~> g++ -pedantic -g -O1 -o ./main.o ./main.cpp
/tmp/cc0g3GUE.o: In function `basic_regex':
/usr/include/c++/4.5/tr1_impl/regex:771: undefined reference to `std::tr1::basic_regex<char, std::tr1::regex_traits<char> >::_M_compile()'
/tmp/cc0g3GUE.o: In function `bool std::tr1::regex_match<char const*, char,     std::tr1::regex_traits<char> >(char const*, char const*, std::tr1::basic_regex<char, std::tr1::regex_traits<char> > const&, std::bitset<11u>)':
/usr/include/c++/4.5/tr1_impl/regex:2144: undefined reference to `bool std::tr1::regex_match<char const*, std::allocator<std::tr1::sub_match<char const*> >, char,     std::tr1::regex_traits<char> >(char const*, char const*, std::tr1::match_results<char     const*, std::allocator<std::tr1::sub_match<char const*> > >&, std::tr1::basic_regex<char, std::tr1::regex_traits<char> > const&, std::bitset<11u>)'
collect2: ld returned 1 exit status

What packages should i (un)install to make the code work on my PC?