我是CMake的新手，我试图链接在同一个项目中生成的库。（简化的）项目结构如下所示：

MyProject
├── CMakeLists.txt
├── Library1
│   └── CMakeLists.txt
│   └── include
│       └── foo.h
│       └── bar.h
│   └── src
│       └── foo.cpp
│       └── bar.cpp
├── Library2
│   └── CMakeLists.txt
│   └── include
│       └── baz.h
│   └── src
│       └── baz.cpp

CMakeLists.txt:

cmake_minimum_required (VERSION 3.17.0)
project(MyProject)

option(BUILD_SHARED_LIBS ON)

add_subdirectory(Library1)
add_subdirectory(Library2)

Library1/CMakeLists.txt：

project(Library1)

add_library(library1 
    src/foo.cpp 
    src/bar.cpp
)

target_include_directories(library1 PUBLIC
    ${CMAKE_SOURCE_DIR}/Library1/include
)

Library2/CMakeLists.txt：

project(Library2)

add_library(library2 
    src/baz.cpp
)

target_include_directories(library2 PUBLIC
    ${CMAKE_SOURCE_DIR}/Library1/include
    ${CMAKE_SOURCE_DIR}/Library2/include
)

find_library(LIB1 library1 HINTS ${CMAKE_SOURCE_DIR}/Library1)

target_link_libraries(library2 PUBLIC LIB1)

如果我运行cmake MyProject，我会得到这个错误：

CMake Error: The following variables are used in this project, but they are set to NOTFOUND. 
LIB1 
    linked by target 'library2' in directory 'MyProject/Library2'

--- Generating done
CMake Generate step failed. Build files cannot be regenerated correctly.

当library1目标直到cmake --build MyProject之后才生成时，如何将library2链接到library1？或者这不是构建这个项目的正确方式？