-$(IPKG_LIBPTHREAD): $(STAGING_DIR)/lib/libpthread.so
- rm -rf $(PKG_BUILD_DIR)
- $(SCRIPT_DIR)/make-ipkg-dir.sh $(IDIR_LIBPTHREAD) ./ipkg/$(PKG_NAME).control $(PKG_VERSION)-$(PKG_RELEASE) $(ARCH)
+$(PKG_BUILD_DIR)/.prepared:
+ mkdir -p $(PKG_BUILD_DIR)
+ touch $@
+
+$(PKG_BUILD_DIR)/.configured: $(PKG_BUILD_DIR)/.prepared
+ touch $@
+
+$(PKG_BUILD_DIR)/.built: $(PKG_BUILD_DIR)/.configured
+ touch $@
+
+$(IPKG_LIBPTHREAD): $(PKG_BUILD_DIR)/.built