Rename configure.in to configure.ac The old name was deprecated in 2013. See-also: https://lists.gnu.org/archive/html/automake/2013-05/msg00049.html Suggested-by: lintian, aclocal X: libpst source: deprecated-configure-filename aclocal: warning: autoconf input should be named 'configure.ac', not 'configure.in'

Starting with an unpacked tarball, try this:

    ./configure
    make
    su
    make install


Starting with a mercurial working directory, try this:

    make -f *cvs
    (cd xml; make; make distclean)
    make distcheck