[gtkmm] precompiled headers

[Cristian Adam <drac gmx net>]

Hi all,

I have tested the classic hello world program using the new gcc 3.4
precompiled headers and... it was 4 times faster! Precompiled headers
rule! :)

#ifdef USE_PCH  
   #include <bits/stdc++.h>
#else
   #include <iostream>
#endif

int main()
{
   std::cout << "Hello World\n";
}

The compile line was: time g++ -o hello hello.cc -DUSE_PCH

Cheers,
Cristi.