The patch which makes the MPC library a hard requirement for GCC bootstrapping has been approved today. As promised, I'll wait one week before applying it to give everyone a chance to install MPC on their systems.
You can download mpc-0.8 from either of these two locations: ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-0.8.tar.gz http://www.multiprecision.org/mpc/download/mpc-0.8.tar.gz The current GCC infrastructure supports both in-tree builds as well as the expected --with-mpc= configure flag. If you're installing MPC in a non-standard directory, I recommend building it with --disable-shared to avoid needing to set LD_LIBRARY_PATH when running GCC. (The same issue arises with gmp/mpfr.) Of course, let me know of any problems. --Kaveh