ccache port doesn't set itself up as gcc-4.2

[bzbarsky (Boris Zbarsky)]

The portfile for ccache has the following:

foreach {bin} {

cc gcc gcc2 gcc3 gcc-3.3 gcc-4.0 c++ c++3 c++-3.3 c++-4.0 g++ g++2 g++3 g++-3.3 g++-4.0

} {

ln -sf ${prefix}/bin/ccache ${destroot}${symlinks_dir}/${bin}

}

At least on Leopard, it should also set up gcc-4.2 and g++-4.2.