On 03/13/2013 05:02 PM, Mark Pizzolato - Info Comm wrote: You'll also have to change any GCC-specific options ("-f<xxx") in the Makefile. I don't think gcc specific options are used if the compiler isn't gcc. That is why I'd like to know 'how things work out'.... I seem to recall that they were, the last time I did it, but it has been awhile since I did that build. The makefile was drastically rewritten in simh v3.9 (last May) and even more so since then. Ahh ok, excellent. -Dave -- Dave McGuire, AK4HZ New Kensington, PA