> Although, I guess the FSF and RedHat would encourage you to use a > free operating system instead of any of the propietary ones > mentioned above. Isn't it? ;-)
Although this is straying off-topic, I'll answer this one time - the FSF would prefer that everyone use nothing but free software, but they recognize the value in putting free software on non-free systems (MS, Solaris, IRIX, etc) so as to demonstrate the higher quality of free software, and hopefully convert the masses. Plus, there are free implementations of MS-DOS now :-) When I first ported gcc to MS-DOS (DJGPP), RMS didn't like the idea of supporting a MS system. That changed when they started shipping DJGPP binaries on CD-ROM; in the first month DJGPP sales exceeded 50% of their total gross sales. So, think of "gcc on proprietary OSs" as a lever, not an impediment.