Export gcc/gcc++

How to export PATHS x86/amd64:

export CC=/usr/local/bin/gcc
export CXX=/usr/local/bin/g++
export CPP=/usr/local/bin/cpp
export LD=/usr/local/bin/gcc
alias c++=/usr/local/bin/c++
alias g++=/usr/local/bin/g++
alias gcc=/usr/local/bin/gcc
alias cpp=/usr/local/bin/cpp
alias ld=/usr/local/bin/gcc
alias cc=/usr/local/bin/gcc

GCC-7 PATHS:

export CC=/usr/bin/gcc-7
export CXX=/usr/bin/g++-7
export CPP=/usr/bin/cpp-7
export LD=/usr/bin/gcc-7

LD:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:{directoryPath}

Test PATHS:

echo $PATH