# Note: these instructions are for the old 2.13 version, for the latest version see autoconf

# Note: depends on m4
wget -c http://ftp.gnu.org/gnu/autoconf/autoconf-2.13.tar.gz
tar -xzf autoconf-2.13.tar.gz
cd autoconf-2.13
mkdir -p build
cd build
../configure --prefix="/usr" --program-suffix="-2.13"
make
make install