Question

我正在尝试创建一个依赖于外部zlib的库。我尝试同时遵循this这样的问题和this one的问题，我的结构看起来像这样：

    def room_version = "2.2.5"
    def lifecycle_version = "2.2.0"

    implementation "androidx.lifecycle:lifecycle-viewmodel:$lifecycle_version"
// LiveData
    implementation "androidx.lifecycle:lifecycle-livedata:$lifecycle_version"
    annotationProcessor "androidx.lifecycle:lifecycle-compiler:$lifecycle_version"

    implementation "androidx.room:room-runtime:$room_version"
    annotationProcessor "androidx.room:room-compiler:$room_version"

然后在我的CMakeLists.txt文件中，尝试这样构建库：

├── myLib (No CMakeLists.txt in this one)
├── zlib (git submodule)
├── build
├── CMakeLists.txt

现在，我尝试与add_library(ZLIB INTERFACE) find_package(ZLIB) if(NOT ZLIB_FOUND) include(ExternalProject) set(ZLIB_DIR ${CMAKE_CURRENT_SOURCE_DIR}/zlib) set(ZLIB_BIN ${CMAKE_CURRENT_BINARY_DIR}/zlib_bin) ExternalProject_Add(ZLIB_EXTERNAL SOURCE_DIR ${ZLIB_DIR} BINARY_DIR ${ZLIB_BIN} ) add_dependencies(ZLIB ZLIB_EXTERNAL) set(ZLIB_LIBRARIES ${ZLIB_BIN}/lib/${CMAKE_INSTALL_LIBDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}zlib${CMAKE_STATIC_LIBRARY_SUFFIX}) set(ZLIB_INCLUDE_DIRS ${ZLIB_BIN}/include) endif() target_link_libraries(ZLIB INTERFACE ${ZLIB_LIBRARIES}) target_include_directories(ZLIB INTERFACE $<BUILD_INTERFACE:${ZLIB_INCLUDE_DIRS}> $<INSTALL_INTERFACE:include> ) #.... add_library (${myLib_lib} STATIC ZLIB ${myLib_SOURCES}) add_dependencies(${myLib_lib} ZLIB) target_link_libraries(${myLib_lib} ${ZLIB_LIBRARIES}) install(TARGETS ${myLib} ZLIB EXPORT ${PROJECT_NAME} RUNTIME DESTINATION bin COMPONENT lib LIBRARY DESTINATION lib${LIB_SUFFIX} COMPONENT lib ARCHIVE DESTINATION lib${LIB_SUFFIX} COMPONENT lib INCLUDES DESTINATION include PUBLIC_HEADER DESTINATION include/myLib)链接，我尝试将${ZLIB_LIBRARIES}和CMAKE_ARGS添加到INSTALL_COMMAND。但是我认为我犯了一些基本的CMake。

我的CMake配置很好，但是在尝试构建时会引发以下错误： ExternalProject_Add。这告诉我无法找到我尝试定位的包含目录，并且在查看构建目录Cannot open include file: 'zlib.h': No such file or directory时，它只是一个空文件夹，既没有库也没有包含文件夹。因此，没有一个失败的失败者，如何使其真正构建我要链接的外部项目？

CMake如何建立依赖关系（ZLIB）

0 个答案: