gnu g++ problem when compiling

[ktrumbla]

AIX version 4.3.3
g++ version 2.95.3.0
when I try to compile my program it gives me an error Collect2: Library libm not found. I can not find a library libm on bulls freeware where I had gotten g++ from.
here is my code, any help would be appreciated.
the command I used to compile was "g++ parsing.cpp".

When compiled with MS Visual C++ as a consol application works perfectly

THIS PROGRAM IS USELESS THE WAY IT IS BUT i AM TESTING THE FUNCTIONALITY FOR ANOTHER PERPOSE.

#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main()
{
string field[23];

string line;
int Pipe;
int counter;
ifstream inputfile;
ofstream outputfile;

inputfile.open (&quot;filename&quot;
outputfile.open (&quot;output.txt&quot;
if ( !inputfile )
{
cout << &quot;FILE NOT OPENED&quot;;
return 1;
}

while (true)
{
getline(inputfile, line); // priming read for EOF

if(inputfile.eof()) // break on EOF
break;

for(counter = 0; counter < 23; counter++)
{
Pipe = line.find(&quot;|&quot;
field[counter] = line.substr(0, Pipe);
line = line.substr(Pipe + 1);
outputfile << field[counter] << &quot;|&quot;;
}

outputfile << endl;
}

return 0;
}