cmake:设置多个项目和它们之间的依赖关系 [英] cmake: setup multiple projects and dependiencies between them
问题描述
我需要帮助为一个C ++项目编写一个好的CMakeLists.txt。
I need help with write a good CMakeLists.txt for a C++ projects.
我寻找答案,但我发现了什么。
这是我的项目的结构:
I looked for answer, but I found anything. This is Structure of my projects:
MainProj
| ProjLib/
| | include/
| | | proj_lib.h
| | src/
| | | proj_lib.cc
| | CMakeLists.txt
| ProjExec/
| | include/
| | | proj_exec.h
| | src/
| | | proj_exec.cc
| | CMakeLists.txt
| CMakeLists.txt
MainProj CMakeLists.txt
MainProj CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
project(MainProj CXX)
# enable C and C++ language
enable_language(C CXX)
# Add sub-directories
add_subdirectory(ProjLib)
add_subdirectory(ProjExec)
ProjLib CMakeLists.txt
ProjLib CMakeLists.txt
set (PROJLIB_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
set (PROJLIB_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
set(PROJLIB_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/src/proj_lib.cc
)
include_directories("${PROJLIB_SOURCE_DIR}")
include_directories("${PROJLIB_INCLUDE_DIR}")
add_library(ProjLib SHARED ${PROJLIB_SRCS} ${PROJLIB_INCLUDE_DIR})
target_include_directories (ProjLib PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
ProjExec CMakeLists.txt
ProjExec CMakeLists.txt
set (PROJEXEC_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
set (PROJEXEC_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
set(PROJEXEC_SRCS
${PROJEXEC_SOURCE_DIR}/proj_exec.cc
)
include_directories("${PROJEXEC_SOURCE_DIR}")
include_directories("${PROJEXEC_INCLUDE_DIR}")
add_executable(ProjExec ${PROJEXEC_SRCS})
target_link_libraries (ProjExec LINK_PUBLIC ProjLib)
proj_exec.cc
proj_exec.cc
#include "proj_lib.h"
...
在proj_exec.cc文件中找不到proj_lib.h。
如果我需要一些cmake中的额外条目?
And it doesn't found proj_lib.h in proj_exec.cc file. If I need some additional entries in some cmake?
任何帮助将不胜感激。 :)
Any help would be appreciated. :)
推荐答案
您需要使用CMake目标及其属性:
You need to make use of the CMake targets and their properties:
MainProj / CMakeLists.txt:
MainProj/CMakeLists.txt:
cmake_minimum_required(VERSION 2.8)
project(MainProj)
# Add sub-directories
add_subdirectory(ProjLib)
add_subdirectory(ProjExec)
b $ b
ProjLib / CMakeLists.txt
ProjLib/CMakeLists.txt
add_library(ProjLib SHARED src/proj_lib.cc)
target_include_directories(ProjLib PUBLIC ${CMAKE_CURRENT_LIST_DIR}/include)
ProjExec / CMakeLists.txt
ProjExec/CMakeLists.txt
add_executable(ProjExec src/proj_exec.cc)
target_include_directories(ProjExec PRIVATE ${CMAKE_CURRENT_LIST_DIR}/include)
target_link_libraries(ProjExec ProjLib)
target_link_libraries
目标,其依赖项的PUBLIC和INTERFACE包括目录将被适当地使用。
target_link_libraries
makes sure that when building a target, its dependencies' PUBLIC and INTERFACE include directories will be used appropriately.
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