Fixed failed IEEE check for cross-compile support.

Hi Tobi,

This fixes the issue where the autoconfigure script required successful generation of IEEE-validated programs on the build host, when compiling from source.

Now, if cross-compile is detected, it will be logged and the IEEE checks will be bypassed.

This allows me to build both natively (x86_64) and cross-compile (Freescale P2020).

Hope this helps!

Trevor