fix wrapper script for symlinks

The wrapper script placed around the target binaries when
using the companion libraries does not work for symbolic links
The wrapper scripts needs to follow the links before calling the
actual binary

Signed-off-by: Bart vdr. Meulen <bartvdrmeulen@gmail.com>

---

 # Compute IA-64-specific values

 CT_DoArchTupleValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}"

 }