Ubuntu 16.04 GCC 5.4 Downgrade for 5.3__ depth learning

One thing to note is that the GCC version of ubuntu16.04 is 5.4, and the latest cuda8.0 seems to be compatible with gcc5.4, where the downgrade method is written for later use.

1, download the GCC source https://ftp.gnu.org/gnu/gcc/gcc-5.3.0/


2, decompression

CD down
sudo tar-zxvf gcc-5.3.0.tar.gz (decompression)

3, download the required dependencies of the compilation

CD gcc-5.3.0//  to unpack the GCC folder
sudo./contrib/download_prerequisites    //Download Dependency
CD.  

4, set up the compilation output directory

mkdir gcc-build-5.3.0

5, into the output directory, generate makefile files

CD gcc-build-5.3.0
sudo  . /gcc-5.3.0/configure--enable-checking=release--enable-languages=c,c++--disable-multilib

6, compile

About 20 minutes.

sudo make-j4

7. Installation

sudo make install

8. Check version

GCC--version
g++--version