NightStrike wrote: > GCC needs GMP And MPFR. What does it need it for, though? Is it used > for the build machine, host machine, target machine, or some > combination thereof? Also, is it needed for all languages? They are host libraries and are used to do constant folding and simplification (and whatever other misc optimizations) in a host-independent manner. That is, gcc must uphold the notion that the code generated for a given input and a given target should be identical no matter whether the compiler is native or a cross, and no matter what the host of the cross is. Without using these libraries to do those simplifications, the results might vary based on differences in host architecture or host precision or host libm bugs or whatnot. They are needed for gfortran only in 4.2, but for all languages in 4.3. Brian
