dnl Check for the XML tools needed to build man pages
AC_PATH_PROG(XMLTO,xmlto)
+dnl Check for the XSLTProc tool needed to build man pages together with po4a
+AC_PATH_PROG(XSLTPROC,xsltproc)
+
+dnl Check for the po4a tool needed to build man pages
+AC_PATH_PROG(PO4A,po4a)
+
dnl Check for graphviz
AC_CHECK_PROG([HAVE_DOT], [dot], [YES], [NO])
AC_PATH_PROG([DOT], [dot], [])