Install gcc-4.9.3 on CentOS 6

install-gcc-4.9.3-on-centos6.txt

yum install libmpc-devel mpfr-devel gmp-devel

cd /usr/src/
curl ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/gcc-4.9.3/gcc-4.9.3.tar.bz2 -O
tar xvfj gcc-4.9.3.tar.bz2
cd gcc-4.9.3
./configure --disable-multilib --enable-languages=c,c++
make -j `grep processor /proc/cpuinfo | wc -l`
make install

tar xvfj gcc-4.9.3.tar.bz2 -> tar xjvf gcc-4.9.3.tar.bz2

Great steps illustration, built at once.

Thanks for the help 👍