AC_SUBST(LIBPUI_LIBS)
# libpui default backend
-DEFAULT_BACKEND_REQUIRES=""
-DEFAULT_BACKEND_CFLAGS="$LIBPUI_DIR "
+DEFAULT_BACKEND_REQUIRES="eina json-c"
+PKG_CHECK_MODULES(DEFAULT_BACKEND, $[DEFAULT_BACKEND_REQUIRES])
+DEFAULT_BACKEND_CFLAGS="$DEFAULT_BACKEND_CFLAGS $LIBPUI_DIR "
#DEFAULT_BACKEND_CFLAGS="$DEFAULT_BACKEND_CFLAGS $LIBPUI_CFLAGS "
-DEFAULT_BACKEND_LIBS="$LIBPUI_LIB "
+DEFAULT_BACKEND_LIBS="$DEFAULT_BACKEND_LIBS $LIBPUI_LIB "
AC_SUBST(DEFAULT_BACKEND_CFLAGS)
AC_SUBST(DEFAULT_BACKEND_LIBS)