Install gcc by running the following commands: unset CFLAGS && unset CXXFLAGS && mkdir ../gcc-build && cd ../gcc-build && ../gcc-&gcc-version;/configure --prefix=/usr --enable-shared \ --enable-languages=c,c++,objc,f77 --enable-threads=posix \ --with-slibdir=/lib --enable-__cxa_atexit && make bootstrap && make install