CentOS6.5 gcc-4.8.2 Installation Steps

Reprinted from: http://blog.sina.com.cn/s/blog_627b3f930101hnz8.html

Thanks a lot, Trig_yao .

The CentOS6.5 comes with a gcc version of 4.4.7, some years, some new software to use the library did not, the latest GCC 4.8.2 has been released, so download the source code installed a try.

1. First install the old GCC-related compilation tools

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1. Yum install gcc gcc-c++ glibc-static -y

2. Download gcc 4.8.2 source code

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1. wget ftp://gcc.gnu.org/pub/gcc/releases/gcc-4.8.2/gcc-4.8.2.tar.bz2

Unzip the source code package, enter the gcc-4.8.2 directory, execute the./contrib/download_prerequisities script automatically downloads three dependent libraries for gmp-4.3.2, mpfr-2.4.2, mpc-0.8.1, you can also download the installation offline via the following address:

ftp://ftp.gnu.org/gnu/gmp/gmp-4.3.2.tar.bz2
http://www.mpfr.org/mpfr-2.4.2/mpfr-2.4.2.tar.bz2
Http://www.multiprecision.org/mpc/download/mpc-0.8.1.tar.gz

If a dependent library is automatically downloaded through a script, the GMP, MPFR, and MPC three directories are generated in the gcc-4.8.2 directory, which can be installed separately

3. Installation of GMP

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1. CD GMP
2. mkdir Build
3. CD Build
4. .. /configure--prefix=/usr/local/gcc/gmp-4.3.2

Su gets root permission to perform the installation

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1. Make && make install

4. Installing MPFR

Go back to the gcc-4.8.2 directory to enter the MPFR directory

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1. Cd.. /.. /mpfr
2. mkdir Build
3. CD Build
4. .. /configure--prefix=/usr/local/gcc/mpfr-2.4.2--with-gmp=/usr/local/gcc/gmp-4.3.2

Su gets root permission to perform the installation

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1. Make && make install

5. Installing the MPC

Go back to the gcc-4.8.2 directory to enter the MPC directory

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1. Cd.. /.. /mpc
2. mkdir Build
3. CD Build
4. .. /configure--prefix=/usr/local/gcc/mpc-0.8.1--with-mpfr=/usr/local/gcc/mpfr-2.4.2--with-gmp=/usr/local/gcc/ gmp-4.3.2

Su gets root permission to perform the installation

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1. Make && make install

6. Add the shared library path, su to root edit ld.so.conf file, add the following content to the file:

/usr/local/gcc/gmp-4.3.2/lib
/usr/local/gcc/mpfr-2.4.2/lib
/usr/local/gcc/mpc-0.8.1/lib

Save exit, execute Ldconfig command

7. Compiling GCC4.8.2

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1. Cd.. /..
2. mkdir Build
3. CD Build
4. .. /configure--PREFIX=/USR/LOCAL/GCC--enable-threads=posix--disable-checking--enable-languages=c,c++-- Disable-multilib

Change root, execute make && make install, start a long wait ...

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1. Make && make install

8. Uninstall the old version

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1. Yum Remove gcc
2. Yum Remove gcc-c++
3. UpdateDB

Link to new version

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1. Cd/usr/bin
2. Ln-s/USR/LOCAL/GCC/BIN/GCC GCC
3. Ln-s/usr/local/gcc/bin/g++ g++

Add Man Help

Vi/etc/man.config

Add GCC's man path to the configuration file

Manpath/usr/local/gcc/share/man

Save quit to take effect, use man gcc to view Help

CentOS6.5 gcc-4.8.2 Installation Steps