我正在尝试使用我编写的CMake文件构建一组自定义库。当前目录结构如下所示：
./lib我的目标是在链接./src目录中的可执行文件时让编译器使用/* 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
目录中内置的.so文件。我试过以下，但无济于事：
在顶级CMakeLists.txt：
target_link_libraries()我还听说你可以使用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})
，所以我在所有`src / * / CMakeLists.txt中添加了与此类似的行：
make VERBOSE=1 pi-d出于某种原因，我仍然得到未定义的引用。所以我尝试用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
编译一个这样的二进制文件并得到以下输出（为了简洁起见只有相关的行）：
libcomm看起来它只是libdaemon，libsock和libdebug，而忽略了libtty和<div aria-live="polite">
<button>Toggle details</button>
</div>
。为什么会这样？我能改变什么？