image: use the merged package directory to resolve dependencies for per-device rootfs

Signed-off-by: Felix Fietkau <nbd@nbd.name>

include/image.mk

@@ -290,17 +290,29 @@ mkfs_packages_add = $(filter-out -%,$(mkfs_packages))
 mkfs_packages_remove = $(patsubst -%,%,$(filter -%,$(mkfs_packages)))
 mkfs_cur_target_dir = $(call mkfs_target_dir,pkg=$(target_params))
 
+opkg_target = \
+	$(call opkg,$(mkfs_cur_target_dir)) \
+		-f $(mkfs_cur_target_dir).conf \
+		-l $(mkfs_cur_target_dir).tmp
+
 target-dir-%: FORCE
-	rm -rf $(mkfs_cur_target_dir)
+	rm -rf $(mkfs_cur_target_dir) $(mkfs_cur_target_dir).opkg
 	$(CP) $(TARGET_DIR) $(mkfs_cur_target_dir)
+	mv $(mkfs_cur_target_dir)/etc/opkg $(mkfs_cur_target_dir).opkg
+	echo 'src default file://$(PACKAGE_DIR_ALL)' > $(mkfs_cur_target_dir).conf
 	$(if $(mkfs_packages_add), \
-		$(call opkg,$(mkfs_cur_target_dir)) install \
+		$(opkg_target) update && \
+		$(opkg_target) install \
 			$(call opkg_package_files,$(mkfs_packages_add)))
 	$(if $(mkfs_packages_remove), \
 		$(call opkg,$(mkfs_cur_target_dir)) remove \
 			$(mkfs_packages_remove))
 	$(call Image/mkfs/prepare,$(mkfs_cur_target_dir))
 	$(call prepare_rootfs,$(mkfs_cur_target_dir))
+	mv $(mkfs_cur_target_dir).opkg $(mkfs_cur_target_dir)/etc/opkg
+	rm -rf \
+		$(mkfs_cur_target_dir).conf \
+		$(mkfs_cur_target_dir).tmp
 
 $(KDIR)/root.%: kernel_prepare
 	$(call Image/mkfs/$(word 1,$(target_params)),$(target_params))