Hi Greicy, > Is necessary install GMP and MPFR? For GCC 4.2.4, I am not sure. For the current GCC 4.4.2, yes-sort-of. You can either have them installed, or have GCC build them for you. As I understand it, GMP and MPFR are used as part of GCC itself (internal to GCC). They are not used by GCC as part of the executables produced by GCC. > And what versions (GMP and MPFR) I can use with for my version of the GCC and where? For GCC 4.4.2 as per <http://gcc.gnu.org/install/prerequisites.html> ... MPFR 2.3.2 (or later) <http://www.mpfr.org/> GMP 4.2 (or latter) <http://directory.fsf.org/project/gmp/> For GCC 4.2.4, I am not sure, as I do not know what the prerequisites are for GCC 4.2.4. What is your configure line? What is your make line? Sincerely, --Eljay
