Linux system upgrades gcc GNU Compiler Suite Seven Steps

The steps for upgrading GCC under Linux are as follows

1. Download GCC's latest source pack wget http://gcc.skazkaforyou.com/releases/gcc-4.9.1/gcc-4.9.1.tar.gz

2. Decompression TAR-XF gcc-4.9.1.tar.gz

3. CD gcc-4.9.1

4. Run Download_prerequisites script,./contrib/download_prerequisites, this script will automatically help you download the required dependent files and libraries

5. Set up the output directory, put all the intermediate files into the directory,

mkdir gcc_temp

CD Gcc_temp

6. Run ... /configure--enable-checking=release--enable-languages=c,c++--disable-multilib

7. Make & make Install