cmake/cmakelists.txt：如何显式列出文件（以避免使用GLOB）

Question

include_directories(lib1)
file(GLOB_RECURSE LIB1_SOURCES
"bund.cc"
"bund.h"
"bund_io.cc"
"bund_io.h"
"cam.cc"
"cam.h"
"defines.h"
)

include_directories(lib2)
file(GLOB_RECURSE LIB2_SOURCES
"allocator.h"
"memory.h"
"arguments.cc"
"arguments.h"
"defines.h"
)

add_library(native-lib SHARED ${LIB1_SOURCES} ${LIB2_SOURCES} native-lib.cpp)
find_library(log-lib log)
target_link_libraries(native-lib ${log-lib})

Answer 1

假设您有一些在库之间共享的依赖项，为什么不创建一个单独的依赖项并在其他两个目标中使用它呢？

此外，明确的源代码规范可能是最好的实践。在大的项目中，不鼓励使用globs，创建了相当小的目标，然后将其添加到更大的目标中。在您的例子中，我将创建两个库（与您一样），但显式地列出源代码。

我会这样做：（首先尝试将代码拆分到库的目录中，最好为共享头创建一个文件夹）

# put all finds in one place
find_library(LOG_LIB log)

add_libary(LIB_1 STATIC
           ${CMAKE_CURRENT_LIST_DIR}/"bund.cc"
           ${CMAKE_CURRENT_LIST_DIR}/"bund_io.cc"
           ${CMAKE_CURRENT_LIST_DIR}/"cam.cc")

target_include_directories(LIB_1 
                           ${CMAKE_CURRENT_SOURCE_DIR}/lib1_includes
                           ${CMAKE_CURRENT_SOURCE_DIR}/common_includes)

add_libary(LIB_2 STATIC
           ${CMAKE_CURRENT_LIST_DIR}/"arguments.cc")

target_include_directories(LIB_2 
                           ${CMAKE_CURRENT_SOURCE_DIR}/lib2_includes
                           ${CMAKE_CURRENT_SOURCE_DIR}/common_includes)

add_library(NATIVE_LIB SHARED
            ${CMAKE_CURRENT_LIST_DIR}/native-lib.cpp)

target_link_libraries(NATIVE_LIB
                      PRIVATE 
                      ${LIB_1} ${LIB_2} ${LOG_LIB}) # I also prefer to use upper case for targets, otherwise you can have nasty to spot linking errors