我想在 Windows 的 CMake 项目中使用 vcpkg
,因为我需要 boost
和 xerces
,它们都由这个包管理器处理.
我有以下CMakeLists.txt
:
cmake_minimum_required (VERSION 3.12.0)
project (myproj)
set (CMAKE_PREFIX_PATH ${XERCES_ROOT})
set (Boost_USE_STATIC_LIBS ON)
set (Boost_USE_MULTITHREADED ON)
unset (Boost_INCLUDE_DIR CACHE)
unset (Boost_LIBRARY_DIRS CACHE)
# set (CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/modules)
find_package (Boost COMPONENTS filesystem regex REQUIRED)
find_package (XercesC CONFIG REQUIRED)
set (CMAKE_INCLUDE_CURRENT_DIR ON)
message (STATUS "binary dir is ${CMAKE_BINARY_DIR}")
include_directories (${CMAKE_BINARY_DIR}/${PROJECT_NAME}/)
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/..)
include_directories (${Boost_INCLUDE_DIRS})
include_directories (${XercesC_INCLUDE_DIRS})
set (PROJECT_SRC
code.cpp
)
add_library (${PROJECT_NAME} SHARED ${PROJECT_SRC})
add_dependencies (${PROJECT_NAME} UPDATE_RESOURCES)
target_link_libraries (${PROJECT_NAME} ${Boost_LIBRARIES} XercesC::XercesC)
Boost
和 xerces-c
随 vcpkg
一起安装。由于我使用的是 Visual Studio Code,所以我在 settings.json
中设置 vcpkg
变量:
"cmake.configureSettings": {
"CMAKE_TOOLCHAIN_FILE" : "some/path/vcpkg/scripts/buildsystems/vcpkg.cmake",
"VCPKG_TARGET_TRIPLET": "x64-windows"
}
当我运行 che CMake 时,出现以下错误:
[cmake] CMake Error at C:/Program Files/CMake/share/cmake-3.14/Modules/FindBoost.cmake:2132 (message):
[cmake] Unable to find the requested Boost libraries.
[cmake]
[cmake] Unable to find the Boost header files. Please set BOOST_ROOT to the root
[cmake] directory containing Boost or BOOST_INCLUDEDIR to the directory containing
[cmake] Boost's headers.
[cmake] Call Stack (most recent call first):
[cmake] D:/projects/vcpkg/scripts/buildsystems/vcpkg.cmake:233 (_find_package)
[cmake] src/myroject/CMakeLists.txt:24 (find_package)
[cmake]
[cmake]
[cmake] CMake Error at D:/Projects/vcpkg/installed/x64-windows/share/xercesc/vcpkg-cmake-wrapper.cmake:1 (_find_package):
[cmake] Could not find a package configuration file provided by "XercesC" with any
[cmake] of the following names:
[cmake]
[cmake] XercesCConfig.cmake
[cmake] xercesc-config.cmake
[cmake]
[cmake] Add the installation prefix of "XercesC" to CMAKE_PREFIX_PATH or set
[cmake] "XercesC_DIR" to a directory containing one of the above files. If
[cmake] "XercesC" provides a separate development package or SDK, be sure it has
[cmake] been installed.
[cmake] Call Stack (most recent call first):
[cmake] D:/Projects/vcpkg/scripts/buildsystems/vcpkg.cmake:189 (include)
[cmake] src/ZLA/CMakeLists.txt:25 (find_package)
[cmake]
[cmake]
[cmake] Configuring incomplete, errors occurred!
[cmake] See also "D:/Projects/zla/build/vscode/CMakeFiles/CMakeOutput.log".
[cms-driver] Error during CMake configure: [cmake-server] Configuration failed.
目前我已经使用 vcpkg 命令安装了 xerces
,而 boost 目前尚未安装,但我期望在执行 cmake 命令期间,vcpkg
将下载并构建所需的构建包。
我也尝试过命令行:
cmake -DCMAKE_TOOLCHAIN_FILE=D:/Projects/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x64-windows ../
但结果是一样的。
我做错了什么?如何成功使用vcpkg?
最佳答案
理论上它很简单(假设 vcpkg 安装在 C:/vcpkg
中,就像它用于 github 操作一样);
用
vcpkg install foo
安装你的“foo”包确保您的 CMakeLists.txt 找到并使用该包;
find_package(FOO) # Use these instead of the package doesn't have proper cmake package support. # find_path(FOO_INCLUDE_DIRS foo.h) # find_library(FOO_LIBRARYS foo) include_directories(${FOO_INCLUDE_DIRS}) target_link_libraries(myprogram ${FOO_LIBRARIES})
运行 cmake
-DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake
但是...这对我不起作用,直到我添加 --triplet x64-windows
到vcpkg install
命令。
DCMAKE_TOOLCHAIN_FILE
设置各种CMAKE_(SYSTEM_)?(PREFIX|LIBRARY|INCLUDE|FRAMEWORK)_PATH
变量以使 find_*() cmake 函数能够工作,但请注意这些路径包括 VCPKG_TARGET_TRIPLET。就我而言,软件包安装为 vcpkg install <foo>
默认为x86-windows
但然后使用 -DCMAKE_TOOLCHAIN_FILE=C:/....
调用 cmake默认为x64-windows
所以它找不到包。
当前 vcpkg 默认为较旧的 x86 目标,但现代 Visual Studio(由 githup 操作使用)默认为 x64。修复方法是使用 vcpkg -triplet x64-windows install <foo>
安装软件包。 。我花了很长时间才发现这一点。
关于c++ - cmake 找不到使用 vcpkg 安装的库,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55496611/