gmp,mpfr,mpc都已经更新了,配置gcc的时候报下面的错,请帮忙看看,谢谢.
checking for the correct version of the gmp/mpfr/mpc libraries... no
configure: error: Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.