At the top of the httpd-2.0 tree:

          $ ./buildconf
          $ ./configure --enable-dav --enable-so --enable-maintainer-mode

      The first arg says to build mod_dav.

      The second arg says to enable shared module support which is needed
      for a typical compile of mod_dav_svn (see below).

      The third arg says to include debugging information.  If you
      built Subversion with --enable-maintainer-mode, then you should
      do the same for Apache; there can be problems if one was
      compiled with debugging and the other without.

      Note: if you have multiple db versions installed on your system,
      Apache might link to a different one than Subversion, causing
      failures when accessing the repository through Apache.  To prevent
      this from happening, you have to tell Apache which db version to
      use and where to find db.  Add --with-dbm=db4 and
      --with-berkeley-db=/usr/local/BerkeleyDB.4.2 to the configure
      line.  Make sure this is the same db as the one Subversion uses.
      This note assumes you have installed Berkeley DB 4.2.52
      at its default locations.  For more info about the db requirement,
      see section I.5.

      You may also want to include other modules in your build. Add
      --enable-ssl to turn on SSL support, and --enable-deflate to turn on
      compression support, for example.  Consult the Apache documentation
      for more details.