error occurred compiling gcc from source code

Right now the gcc and g++ on my ubuntu 15.10 machine is version 5.2.1. I need to install v4.4 of them for some reason. I downloaded the source code of gcc4.4.7 and configure with this:

../configure \
    --disable-checking \
    --enable-languages=c,c++ \
    --enable-multiarch \
    --enable-shared \
    --enable-threads=posix \
    --program-suffix=4.4 \
    --with-gmp=/usr/local/lib \
    --with-mpc=/usr/local/lib \
    --with-mpfr=/usr/local/lib \
    --without-included-gettext \
    --with-system-zlib \
    --with-tune=generic \
    --prefix=$HOME/bin/android_build

I got a makefile and try make but I receive these two errors:

../../gcc/toplev.c:536:1: error: redefinition of ‘floor_log2’
../../gcc/toplev.c:571:1: error: redefinition of ‘exact_log2’

So how to solve this problem? Thanks.