more cleanup of #include files. common.h is the only file allowed to include system .h files unprotected by autoconf HAVE_ symbols. define.h is the only other file allowed to include system .h files. define.h is never installed; common.h is installed if we are building the shared library.

Starting with an unpacked tarball, try this:

    ./configure
    make
    su
    make install


Starting with a mercurial working directory, try this:

    make -f *cvs
    ./configure >/dev/null
    (cd xml; make; make distclean)
    make distcheck