Here is said to compile the installation, Yum/apt-get and other installation methods are relatively simple, not elaborated!
1. Download the source package: gcc.gnu.org
2, decompression:
TAR-XJVF gcc-4.9.0.tar.bz2
3 . Download the dependent packages required for compilation:
The simplest way to do it directly:
./contrib/download_prerequisites
Script Automatic Download Dependency package GMP, MPFR,MPC. You can also manually download and then move to the/gcc-4.9.0 directory to install automatically, or compile the installation yourself first
4, execute configure command, produce makefile:
mkdir Build
CD Build
.. /configure--enable-checking=release--enable-languages=c,c++--disable-multilib
Create the build directory first, and compile it into this directory
5.Compile
Make-j4
4 indicates the number of threads, time is longer, faster with multiple threads
6. Installation
Make install
Questions:
C + + compiler missing or inoperational
g++ Command not found
Checking dependency style of g++ ... none
No usable dependency style found
The above problems are because the system does not have a C + + compiler, 4.8 or 4.9 before the need to have an ISO c++98 compiler, installed a OK, I do not know which can be installed in an earlier version of GCC such as 4.4.7
The compilation process is recorded in Config.log, and there is a problem to view the file first.
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