need to apply a patch and use automake 1.9
(all thanks goes to the guys of sipX)

--- configure.in.orig   2005-05-25 12:16:13.000000000 +0200
+++ configure.in        2005-05-25 12:14:27.000000000 +0200
@@ -27,7 +27,7 @@
                                cxxflags=`$withval -q CXXFLAGS`
                                extra_cppflags=`$withval -q EXTRA_CPPFLAGS`
                                extra_cflags=`$withval -q EXTRA_CFLAGS`
-               INCLUDES="-I$apache_inc -I$apr_inc -I$apu_inc"
+               INCLUDES="-I../include -I../../include -I$apache_inc -I$apr_inc -I$apu_inc"
                HTTPD_DIR=`$withval -q PREFIX`
                CONF_DIR=`$withval -q SYSCONFDIR`
                MODULES_DIR=`$withval -q LIBEXECDIR`