Description of problem:
I retrieved a simple helloworld program from http://prowiki.org/wiki4d/wiki.cgi?D__Tutorial/StartingWithD

$ cat helloworld.d 
/*
 * Dependencies:
 *   ldc ldc-phobos
 * Compile with:
 *   ldc2 read_fasta.d
 */

import std.stdio;

int main()
{
    writefln("%s World!", "Hello");
    return 0;
}

$ ldc2 helloworld.d 
/usr/include/d/std/stdio.d(18): Error: module stdio is in file 'core/stdc/stdio.d' which cannot be read
import path[0] = /builddir/build/BUILD/ldc-20110901git58d40d2/runtime/../import
import path[1] = /usr/include/d
import path[2] = /builddir/build/BUILD/ldc-20110901git58d40d2/druntime/import
import path[3] = /builddir/build/BUILD/ldc-20110901git58d40d2/druntime/src
import path[4] = /builddir/build/BUILD/ldc-20110901git58d40d2/phobos/


Version-Release number of selected component (if applicable):
$ rpm -qa ldc\*
ldc-phobos-2-4.20110801git58d40d2.fc16.x86_64
ldc-2-4.20110801git58d40d2.fc16.x86_64
ldc-druntime-2-4.20110801git58d40d2.fc16.x86_64
ldc-phobos-devel-2-4.20110801git58d40d2.fc16.x86_64
ldc-druntime-devel-2-4.20110801git58d40d2.fc16.x86_64


How reproducible:
always

Steps to Reproduce:
1. Create the above helloworld.d file
2. Try to compile it with ldc2
3. Watch it fail
  
Actual results:
Presented above (fails)

Expected results:
A binary

Additional info: