Fatal error: error writing to -: Broken pipe

Question

Why does this simple default program for Xcode fail in this way? I didn't code this, this is the default for a new C++ project in Xcode (3.2)
#include <iostream>
int main (int argc, char * const argv[]) {
    // insert code here...
    std::cout << "Hello, World!\n";
    return 0;
What is really weird is that it worked the first time, and I have changed nothing. All proper files appear to be in the /Developer/usr/bin folder and it doesn't seem to have problems finding anything.

Answer 1

This is the salient portion of the log:
/Developer/usr/bin/../libexec/gcc/i686-apple-darwin10/4.2.1/as: assembler (/Developer/usr/bin/../libexec/gcc/darwin/i386/as or /Developer/usr/bin/../local/libexec/gcc/darwin/i386/as) for architecture i386 not installed
/Developer/usr/bin/../libexec/gcc/i686-apple-darwin10/4.2.1/as: no assemblers installed
writing to -: Broken pipe
compilation terminated.
For whatever reason, I see a shortcut to both "as" and "ld". It seems the Xcode installer has a bug in it.