【发布时间】：2019-05-16 13:04:46
【问题描述】：
我正在尝试将我的 CMake 项目的输出复制到另一个目录，但它不起作用。它说：复制文件时出错。
我的项目如下所示：
A----
|----B
| |
| |
| |-----CmakeListB
|
|
|
|
|
|-----C
| |
| |
| |------CmakeListC
|
|
|-----CmakeListA
A 是我最重要的项目。 B是A子项目，建dll C是一个子项目，用来构建exe
我上面描述的无关紧要。
我尝试将B构建的dll复制到另一个目录，我这样写命令，但它不起作用。（在Windows7，VS2017上）
add_custom_command(
TARGET HOOK_SRC POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_BINARY_DIR}/MSP_S_HOOK.dll
${CMAKE_CURRENT_BINARY_DIR}/1/MSP_S_HOOK.dll)
CmakeList 如下所示
project(eSDK_MSP C CXX)
cmake_minimum_required(VERSION 3.8)
foreach (policy
CMP0074)
if (POLICY ${policy})
cmake_policy(SET ${policy} NEW)
endif ()
endforeach ()
if (POLICY CMP0074)
cmake_policy(SET CMP0074 NEW)
endif ()
set(CMAKE_CXX_STANDARD 11)
if (MSVC)
endif ()
if (MINGW OR CYGWIN)
add_definitions(-O3)
link_libraries(ws2_32 mswsock)
if (USE_32BITS)
message("build x86 target")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
else ()
message("build x64 target")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m64")
endif (USE_32BITS)
endif ()
ADD_DEFINITIONS(-DBOOST_COROUTINES_NO_DEPRECATION_WARNING)
macro(get_WIN32_WINNT version)
if (WIN32 AND CMAKE_SYSTEM_VERSION)
set(ver ${CMAKE_SYSTEM_VERSION})
string(REPLACE "." "" ver ${ver})
string(REGEX REPLACE "([0-9])" "0\\1" ver ${ver})
set(${version} "0x${ver}")
endif ()
endmacro()
get_WIN32_WINNT(ver)
add_definitions(-D_WIN32_WINNT=${ver})
set(Boost_USE_STATIC_LIBS ON) # enable dynamic linking
set(Boost_USE_MULTITHREAD ON) # enable multithreading
set(Boost_USE_STATIC_RUNTIME OFF)
message(${CMAKE_BINARY_DIR})
find_package(BOOST REQUIRED)
if (NOT Boost_FOUND)
message("not found boost package")
else ()
message("found boost package")
include_directories(${Boost_INCLUDE_DIR})
LINK_DIRECTORIES(${CMAKE_LIBRARY_PATH} $ENV{BOOST_LIBRARYDIR})
message("includes: ${Boost_INCLUDE_DIRS}")
message("libs: $ENV{BOOST_LIBRARYDIR}")
endif ()
include_directories("."
"../MSP_S/src/window"
)
set(HOOK_SRC
dllmain.cpp
../MSP_S/src/window/ShmUtils.h
HOOK.def)
ADD_LIBRARY(HOOK_SRC SHARED ${HOOK_SRC})
target_link_libraries(HOOK_SRC wsock32 ws2_32 )
#MESSAGE(..)
if (MSVC)
# if (CMAKE_CL_64)
# add_custom_command(TARGET HOOK_SRC POST_BUILD
# COMMAND ${CMAKE_COMMAND} -E copy
# "MSP_S_HOOK.dll"
# ${OUTPUT_DIR}"MSP_S_HOOKx64.dll")
# else ()
# add_custom_command(TARGET HOOK_SRC POST_BUILD
# COMMAND ${CMAKE_COMMAND} -E copy
# "MSP_S_HOOK.dll"
# ${OUTPUT_DIR}"MSP_S_HOOKx86.dll")
# endif ()
endif ()
message("hook " ${TARGET_FILE_DIr})
add_custom_command(
TARGET HOOK_SRC POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_BINARY_DIR}/MSP_S_HOOK.dll
${CMAKE_CURRENT_BINARY_DIR}/1/MSP_S_HOOK.dll)
set_target_properties(HOOK_SRC PROPERTIES LINK_FLAGS "/INCREMENTAL:NO" LINKER_LANGUAGE C)
我能做些什么来解决这个问题？
【问题讨论】：
-
您是否检查过构建目录中的文件
MSP_S_HOOK.dll确实存在？据我记得，MSVC 将add_library/add_executable的输出工件放入基于构建配置（“Debug”、“Release”等）的子目录。 -
为什么要复制神器。 CMake 为这些目的提供安装和打包支持。
-
@Tsyvarev 它确实存在。变量 ${CMAKE_CURRENT_BINARY_DIR} 是像这样命名为“.../vs-build/x86/debug/...”的目录
-
@John 怎么样？我发现没有文档可以让我弄清楚。我的母语不是英语，而且我所在的地区没有那么多 C++ 程序员，甚至没有 CMakeList，这就是我来 SOF 寻找答案的原因。