Can't find the dependencies's libraries

Hi, I am adding ostree and aktualizr to my openwrt package, ostree is a denpendency of aktualizr, I have added it to the DEPENDS of aktualizr. But when I compile aktualizr, the CMake system tells me that it cannot find the headers path and library path of ostree.
Here is the error messages:

Package aktualizr is missing dependencies for the following libraries:
libostree-1.so.1

I have no idea how OpenWRT find the libraries for a package. If anyone knows it, please give me a hint.
And here is the Makefile of aktualizr:

include $(TOPDIR)/rules.mk

PKG_NAME:=aktualizr
PKG_RELEASE:=1

PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://github.com/advancedtelematic/aktualizr.git
PKG_SOURCE_SUBDIR:=$(PKG_NAME)
PKG_SOURCE_VERSION:=2020.10

PKG_BUILD_DIR:=$(BUILD_DIR)/${PKG_NAME}
CMAKE_BINARY_SUBDIR:=build

include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk

define Package/${PKG_NAME}
		SECTION:=TCU
		CATEGORY:=TCU
		SUBMENU:=Utils
		TITLE:=aktualizr
		DEPENDS:=+libc +libopenssl +boost +boost-atomic +boost-chrono +boost-filesystem +boost-log +boost-program_options +boost-regex +boost-thread +boost-system +libpsl +libcurl +libsodium +libostree +libarchive +libsqlite3 
endef

define Package/${PKG_NAME}/description
		This is a update client for embedded systems. It can be used to update the software on a device over-the-air.
endef

define Package/${PKG_NAME}/install
		$(INSTALL_DIR) $(1)/usr/bin
		$(INSTALL_BIN) $(PKG_BUILD_DIR)/ipkg-install/usr/bin/aktualizr ${1}/usr/bin
		$(INSTALL_DIR) $(1)/usr/lib
		$(INSTALL_BIN) $(PKG_BUILD_DIR)/ipkg-install/usr/lib/libaktualizr.so ${1}/usr/lib
endef

CMAKE_OPTIONS+= \
		-DCMAKE_BUILD_TYPE=Debug

$(eval $(call BuildPackage,${PKG_NAME}))

And the Makefile of OSTree

include $(TOPDIR)/rules.mk

PKG_NAME:=libostree
PKG_VERSION:=2023.8
PKG_RELEASE:=1

PKG_BUILD_DIR=${BUILD_DIR}/${PKG_NAME}-${PKG_VERSION}
PKG_SOURCE:=${PKG_NAME}-${PKG_VERSION}.tar.xz
PKG_SOURCE_URL:=https://github.com/ostreedev/ostree/releases/download/v${PKG_VERSION}/
PKG_HASH:=b6fffc267188e40d60755e6d7f2be65831795baa53b0fd9dd6c6809c7e54796d

include $(INCLUDE_DIR)/package.mk

export OT_DEP_E2P_CFLAGS="-I${BUILD_DIR}/target-aarch64_generic_glibc/e2fsprogs-1.46.5/lib/e2p"
export OT_DEP_E2P_LIBS="-L{STAGING_DIR}/root-layerscape/usr/lib"

define Package/${PKG_NAME}
		SECTION:=TCU
		CATEGORY:=TCU
		SUBMENU:=Utils
		TITLE:=libostree
		DEPENDS:=+libunistring +libgpgme +libassuan +libcurl +libidn2 +libatomic +libarchive +e2fsprogs +libnettle +libcharset +libxml2 +liblzma +libiconv +libselinux +libsqlite3 +glib2 +libfuse +libmount +libcurl +libsoup
endef

define Package/${PKG_NAME}/description
		OSTree library.
endef

define Build/Configure
		$(call Build/Configure/Default,)
endef

define Build/InstallDev
		$(INSTALL_DIR) $(1)/usr/bin
		$(INSTALL_BIN) $(PKG_BUILD_DIR)/.libs/ostree $(1)/usr/bin
		$(INSTALL_BIN) $(PKG_BUILD_DIR)/ostree-prepare-root $(1)/usr/bin
		$(INSTALL_DIR) $(1)/usr/lib
		$(CP) $(PKG_BUILD_DIR)/.libs/lib*.a $(1)/usr/lib
		$(CP) $(PKG_BUILD_DIR)/.libs/lib*.so* $(1)/usr/lib
		$(INSTALL_DIR) $(1)/usr/include
		$(CP) $(PKG_BUILD_DIR)/ipkg-install/usr/include/ostree-1/* $(1)/usr/include
endef

define Package/${PKG_NAME}/install
		$(call Build/Install/Default,)
endef

$(eval $(call BuildPackage,${PKG_NAME}))

Anything you need to debug, feel free to comment!

I also try to add libostree-1 as dependency to aktualizr's DEPENDS, but it doesn't work.

And I am sure I have libostree-1.so.1 built.