PKG_CONFIG_DEPENDS causes a rebuild when needed. Alas the apr-util build system doesn't always work out the way OpenWrt intends it to. This was found by pure chance. apr-util was in build directory without any plugins selected. Then apache got selected, causing plugins to be selected. So PKG_CONFIG_DEPENDS caused a reconfigure and another make in apr-util. But afterward apache couldn't find symbols related to LDAP. To workaround this add "clean" to make targets. No rev bump because no change for the apr-util packages. Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>lilik-openwrt-22.03