Error：Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+

错误：Error：Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+

解决方案：

GMP编译

wget ftp://ftp.gnu.org/gnu/gmp/gmp-5.0.1.tar.bz2
tar -vxf gmp-5.0.1.tar.bz2
cd gmp-5.0.1/
./configure
make
sudo make install

MPFR编译

wget https://ftp.gnu.org/gnu/mpfr/mpfr-3.1.5.tar.gz
tar -vxf mpfr-3.1.5.tar.gz
cd mpfr-3.1.5/
./configure
make
sudo make install

MPC编译

wget http://www.multiprecision.org/downloads/mpc-0.9.tar.gz
tar -vxf mpc-0.9.tar.gz
cd mpc-0.9/
./configure
make
sudo make install