我有一组自定义库,我正尝试使用我编写的CMake文件进行构建。当前目录结构如下:使用CMake进行自定义库时的链接器错误
├── lib
├── src
│ ├── ac_d
│ ├── at_d
│ ├── bp_d
│ ├── fm_d
│ ├── hm_d
│ ├── pi_d
│ ├── pv_d
│ ├── ra_d
│ └── rc_d
└── test
我的目标是让编译器使用的./src
目录链接可执行文件时,建在./lib
目录下的.so文件。我试过以下,但无济于事:
在顶层的CMakeLists.txt:
/* minimum version, project name etc */
set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/lib)
set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/lib)
/* other stuff */
set(CDH_LIB_NAMES comm daemon debug tty sock)
set(CDH_LIB_INCLUDES
${CMAKE_CURRENT_SOURCE_DIR}/lib/global.h
${CMAKE_CURRENT_SOURCE_DIR}/lib/libcomm.h
${CMAKE_CURRENT_SOURCE_DIR}/lib/libdaemon.h
${CMAKE_CURRENT_SOURCE_DIR}/lib/libdebug.h
${CMAKE_CURRENT_SOURCE_DIR}/lib/libtty.h
${CMAKE_CURRENT_SOURCE_DIR}/lib/libsock.h
${CMAKE_CURRENT_SOURCE_DIR}/lib/uthash.h
${CMAKE_CURRENT_SOURCE_DIR}/lib/utlist.h)
add_subdirectory(lib) # make sure we build .so first
include_directories(lib) # then use this as an include directory
link_directories(${CMAKE_CURRENT_SOURCE_DIR}/lib) # and a link directory
find_library(CDH_LIBS
NAMES tty comm sock debug daemon
PATHS "${CMAKE_CURRENT_SOURCE_DIR}/lib"
) # Not sure if this does anything
add_subdirectory(src) # Now build the src binaries
我还听说,你可以使用target_link_libraries()
,所以我在所有的`SRC加入了类似线到此/ */CMakeLists.txt:
set(ACD_BIN ACdtest)
set(ACD_SRC
${CMAKE_CURRENT_SOURCE_DIR}/ACd.c
${CMAKE_CURRENT_SOURCE_DIR}/ACd.h
${CDH_LIB_INCLUDES})
add_executable(${ACD_BIN} ${ACD_SRC})
target_link_libraries(${ACD_BIN} ${CDH_LIB_NAMES})
由于某种原因,我仍然收到未定义的引用。所以,我想编译一个这样的二元与make VERBOSE=1 pi-d
并得到下面的输出(仅适用线简洁):
Linking C executable pi-d
cd /home/user/projectname/build/src/pi_d && /usr/bin/cmake -E cmake_link_script CMakeFiles/pi-d.dir/link.txt --verbose=1
/usr/bin/cc --std=gnu99 CMakeFiles/pi-d.dir/PId.c.o -o pi-d -L/home/user/projectname/lib -rdynamic ../../lib/libcomm.so ../../lib/libdaemon.so ../../lib/libsock.so -Wl,-rpath,/home/user/projectname/build/lib:/home/user/projectname/lib
这看起来像是只得到libcomm
,libdaemon
,并且libsock
,忽视libdebug
和libtty
。为什么会这样?我可以改变什么?
我试图实现你在这里给出的答案:http://stackoverflow.com/questions/39662985/linking-against-a-library-called-debug-in-cmake和运行到“找不到-ldebug_lib“,这似乎是在翻译中迷失的东西。 – ijustlovemath