Linux下C开发环境的搭建过程，基于 linux-3.0.3、binutils-2.21.1、glibc-2.13、glibc-ports-2.13、gcc-4.6.1、gmp-5.0.2、mpfr-3.0.1、mpc-0.9 构建(Linux C development environment under the construction process, based on linux-3.0.3, binutils-2.21.1, glibc-2.13, glibc-ports-2.13,