$ export VERSION=2.63 $ wget http://ftp.gnu.org/gnu/autoconf/autoconf-$VERSION.tar.bz2 $ tar xjvf autoconf-$VERSION.tar.bz2 $ ./configure --program-suffix=-$VERSION $ sudo make install pkgdatadir="\$(datadir)/autoconf-$VERSION" pkglibdir="\$(datadir)/autoconf-$VERSION" pkgincludedir="\$(includedir)/autoconf-$VERSION"