Upgrade GCC 4.6.3 on Ubuntu 12.04 to 4.8.2

Question

I\'m about to update default GCC (version 4.6.3) shipped by Ubuntu 12.04 to 4.8.2, though the compilation requires a standalone C++ compiler

admin@ubuntu: /u         


        

Answer 1

You can easily compile the sources.

The following commands worked for gcc 4.7. They should be fine for gcc 4.8 as well:

sudo apt-get install libmpfr-dev libgmp3-dev libmpc-dev flex bison

svn checkout svn://gcc.gnu.org/svn/gcc/trunk

cd trunk

./configure --prefix=/opt/gcc-4.8.2/usr/local/gcc-4.8.2 --enable-languages=c,c++

make

make install

The compiler will be placed in the /opt/ directory, so you have to use it from there.