+DX_PROG_GOB2([2.0.0], [have_gob2=yes], [have_gob2=no])
+AM_CONDITIONAL([HAVE_GOB2], [test x"$have_gob2" = x"yes"])
+
+AS_IF([test x"$have_gob2" != x"yes"], [dx_cv_gob2_dynamic_types=no])
+AC_CACHE_CHECK([Whether $GOB2 supports dynamic types],
+ [dx_cv_gob2_dynamic_types], [cat >conftest.gob <<'EOF'
+class :Conftest from G:Object (dynamic)
+{
+ public void test(void)
+ {
+ }
+}
+EOF
+dx_cv_gob2_dynamic_types=no
+AS_IF([$GOB2 conftest.gob >/dev/null 2>&1],
+[mv conftest.c conftest.inc
+save_CFLAGS=$CFLAGS save_LIBS=$LIBS
+CFLAGS="$GLIB_CFLAGS $CFLAGS"
+LIBS="$LIBS $GLIB_LIBS"
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[#]include "conftest.inc"],
+[conftest_register_type(0);])], [dx_cv_gob2_dynamic_types=yes])
+CFLAGS=$save_CFLAGS LIBS=$save_LIBS])