Silencing errors when casting file to program

So I'm casting a pike file to program and to make sure it compiles correctly I'm cathing any errors, like this

mixed err = catch {
  program p = (program) "some_app.pike";
};

But if it fails, it will still generate the compiling errors on stdout.  How do I stop that? 

Is this the correct solution?
http://pike.1058338.n5.nabble.com/Possible-to-override-stderr-stdin-amp-stdout-td5710030.html
It seems messy to close(), open() and then revert stdout everytime I need to cast a file to program.

So should I then as a general strategy for console based programs to dup() stdout to a seperate console object that I do output writes to and then redirect stdout to /dev/null for instance. How do you usally do it?

/ Tor Edvardsson, [email protected]