在Cmake中包含库和目录包含的共享对象

Question

我对Cmake非常陌生，我试图用它作为approach的替代方案，但这种方法无法正常工作。

我的结构其实很简单，我有：

App/src/ 
App/src/so1 
App/src/so2 
App/src/so3 

而且在每个App/src/soN文件夹中，我有一个.cpp文件时，将被编译成一个共享对象。 我知道我必须在上面列出的每个文件夹中添加一个CMakeLists.txt文件，但我真的迷失在图书馆链接和包含。

例如，假设有App/src/so1下的以下文件：

App/src/so1/so1.hpp 
App/src/so1/so1.cpp 

和共享对象so1.so需要-I /some/dir/include，并且也需要被链接到-L /some/other/dir/lib -l otherdirlib。 CMake有什么合适的指令？

Answer 1

编辑：

使用文件和GLOB_RECURSE：

GLOB_RECURSE会产生类似规则GLOB名单，除了 它会遍历匹配的目录下的所有子目录和 匹配文件。

我建议你rearrenge文件是这样的：

app/ 
|_ src/ 
|_ include/ 
|_ CMakeLists.txt 
so1/ 
|_ src/ 
|_ include/ 
|_ CMakeLists.txt 
so2/ 
|_ src/ 
|_ include/ 
|_ CMakeLists.txt 
so3/ 
|_ src/ 
|_ include/ 
|_ CMakeLists.txt 
CMakeLists.txt 

中的CMakeLists.txt在app文件夹：

SET (APP_NAME app) 

# Print variables to stdout 
MESSAGE (STATUS) 
MESSAGE (STATUS "Configuring ${APP_NAME}:") 
MESSAGE (STATUS) 

# Source code files 
FILE (GLOB_RECURSE SOURCE_FILES src/*.cpp include/*.h include/*.inl) 

# Compiler options 
IF (CMAKE_COMPILER_IS_GNUCXX) 
    ADD_DEFINITIONS (-ansi -Wall -Wextra -Werror -pthread) 
ENDIF() 

# Build application 
ADD_EXECUTABLE (${APP_NAME} ${SOURCE_FILES}) 

TARGET_LINK_LIBRARIES (${APP_NAME} 
    ${SO1_LIB} 
    ${SO2_LIB} 
    ${SO3_LIB} 
) 

INSTALL (TARGETS ${APP_NAME} RUNTIME DESTINATION bin PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_WRITE GROUP_EXECUTE WORLD_READ WORLD_EXECUTE) 

中的CMakeLists.txt每个lib文件夹中会是这样的（相应地更改每个文件中的LIB_OUTPUT_NAME）：

SET (LIB_OUTPUT_NAME so1) 

# Print variables to stdout 
MESSAGE (STATUS) 
MESSAGE (STATUS "Configuring ${LIB_OUTPUT_NAME}:") 
MESSAGE (STATUS) 

# Source code, headers and test files 
FILE (GLOB_RECURSE HEADER_FILES include/*.h include/*.inl) 
FILE (GLOB_RECURSE SOURCE_FILES src/*.cpp include/*.h include/*.inl) 
FILE (GLOB_RECURSE TEST_SRC_FILES tests/*.cpp tests/*.h tests/*.inl) 

# Compiler options 
IF (CMAKE_COMPILER_IS_GNUCXX) 
    ADD_DEFINITIONS (-ansi -Wall -Wextra -Werror -pthread) 
ENDIF() 

# Build library 
ADD_LIBRARY (${LIB_OUTPUT_NAME} SHARED ${SOURCE_FILES}) 

然后在主要的CMakeLists.txt：

CMAKE_MINIMUM_REQUIRED (VERSION 2.6) 
PROJECT (App CXX) 

# Set common variables 
IF ("${CMAKE_BUILD_TYPE}" STREQUAL "Release") 
    SET (BUILD_DIR build/release) 
ELSE() 
    SET (BUILD_DIR build/debug) 
ENDIF() 

# Print variables to stdout 
MESSAGE (STATUS) 
MESSAGE (STATUS "Building App:") 
MESSAGE (STATUS "change a configuration variable with: cmake -D<Variable>=<Value>") 
MESSAGE (STATUS "CMAKE_INSTALL_PREFIX = ${CMAKE_INSTALL_PREFIX}") 
MESSAGE (STATUS "CMAKE_BUILD_TYPE = ${CMAKE_BUILD_TYPE}") 
MESSAGE (STATUS "CMAKE_PREFIX_PATH = ${CMAKE_PREFIX_PATH}") 
MESSAGE (STATUS) 

# Remove build directory on clean target 
SET_DIRECTORY_PROPERTIES (PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES ${BUILD_DIR}) 

# Include directories 
INCLUDE_DIRECTORIES (
    "app/include" 
    "so1/include" 
    "so2/include" 
    "so3/include" 
) 

# Add common compiler flags 
IF (CMAKE_COMPILER_IS_GNUCXX) 
    SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CPP_FLAGS_RELEASE} -O2") 
    SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g) 
ENDIF() 

# Build all dynamic Libraries 
ADD_SUBDIRECTORY (smartmatic ${BUILD_DIR}/so1) 
SET (SO1_LIB ${CMAKE_CURRENT_SOURCE_DIR}/${BUILD_DIR}/so1/so1.so) 

ADD_SUBDIRECTORY (saes-runtime ${BUILD_DIR}/so2) 
SET (SO2_LIB ${CMAKE_CURRENT_SOURCE_DIR}/${BUILD_DIR}/so2/so2.so) 

ADD_SUBDIRECTORY (saes-devices ${BUILD_DIR}/so3) 
SET (SO3_LIB ${CMAKE_CURRENT_SOURCE_DIR}/${BUILD_DIR}/so3/so3.so) 

# Add dynamic lib to app build for linking. 
ADD_SUBDIRECTORY (so1 ${BUILD_DIR}/so1) 
SET (SO1_LIB ${CMAKE_CURRENT_SOURCE_DIR}/${BUILD_DIR}/so1/so1.so) 

ADD_SUBDIRECTORY (so2 ${BUILD_DIR}/so2) 
SET (SO2_LIB ${CMAKE_CURRENT_SOURCE_DIR}/${BUILD_DIR}/so2/so2.so) 

ADD_SUBDIRECTORY (so3 ${BUILD_DIR}/so3) 
SET (SO3_LIB ${CMAKE_CURRENT_SOURCE_DIR}/${BUILD_DIR}/so3/so3.so) 

# Build Application 
ADD_SUBDIRECTORY (app ${CMAKE_CURRENT_SOURCE_DIR}/${BUILD_DIR}/app) 

更多信息：

http://www.cmake.org/cmake/help/cmake2.6docs.html