Undefined references when compiling C++ program

[Xavier Dufresne <xdufresne at gmx dot fr>]

Hello,

when I try to compile this...

//zozo.cc
#include <iostream>
int main()
{
 std::cout << "Salut" << std::endl;
 return 0;
}

...with...
gcc zozo.cc

...gcc give me...
/cygdrive/c/DOCUME~1/travonz/LOCALS~1/Temp/ccuTTqP6.o(.text+0x2f):zozo.cc: 
undefined reference to `std::cout'
/cygdrive/c/DOCUME~1/travonz/LOCALS~1/Temp/ccuTTqP6.o(.text+0x34):zozo.cc: 
undefined reference to `std::basic_ostream<char, std::char_traits<char> 
>& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, 
std::char_traits<char> >&, char const*)'
/cygdrive/c/DOCUME~1/travonz/LOCALS~1/Temp/ccuTTqP6.o(.text+0x3c):zozo.cc: 
undefined reference to `std::basic_ostream<char, std::char_traits<char> 
>& std::endl<char, std::char_traits<char> >(std::basic_ostream<char, 
std::char_traits<char> >&)'
/cygdrive/c/DOCUME~1/travonz/LOCALS~1/Temp/ccuTTqP6.o(.text+0x44):zozo.cc: 
undefined reference to `std::basic_ostream<char, std::char_traits<char> 
>::operator<<(std::basic_ostream<char, std::char_traits<char> >& 
(*)(std::basic_ostream<char, std::char_traits<char> >&))'
/cygdrive/c/DOCUME~1/travonz/LOCALS~1/Temp/ccuTTqP6.o(.text+0x6d):zozo.cc: 
undefined reference to `std::ios_base::Init::Init[in-charge]()'
/cygdrive/c/DOCUME~1/travonz/LOCALS~1/Temp/ccuTTqP6.o(.text+0x88):zozo.cc: 
undefined reference to `std::ios_base::Init::~Init [in-charge]()'
collect2: ld returned 1 exit status

if I compile: int main(){return 0;} it's ok !

Do I have to specifie linking libraries with the -l option ?

thanks for your help.

Xavier


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