cmake找不到使用vcpkg安装的库 [英] cmake cannot find libraries installed with vcpkg

问题描述

我想在Windows的CMake项目中使用 vcpkg ，因为我需要同时由此程序包管理器处理的 boost 和 xerces

I want to use vcpkg in a CMake project in Windows, because I need boost and xerces that are both handled by this package manager.

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 与 vcpkg 一起安装.由于我使用的是Visual Studio Code，因此要在 settings.json 中设置 vcpkg 变量:

Boost and xerces-c are installed with vcpkg. Since I'm using Visual Studio Code I'm setting vcpkg variables in settings.json:

  "cmake.configureSettings": {
    "CMAKE_TOOLCHAIN_FILE" : "some/path/vcpkg/scripts/buildsystems/vcpkg.cmake",
    "VCPKG_TARGET_TRIPLET": "x64-windows"
  }

当我运行CMake时，出现以下错误:

When I run che CMake I obtain following errors:

[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 ，虽然boost尚未安装，但是我期望在执行cmake命令时， vcpkg 将下载并构建所需的构建软件包.

At the moment I've installed xerces with vcpkg commands, while boost is currently not installed, but I was expecting that during the execution of the cmake command, vcpkg will download and build needed build packages.

我也尝试了命令行:

 cmake -DCMAKE_TOOLCHAIN_FILE=D:/Projects/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x64-windows ../

但结果是相同的.

我做错了什么?如何成功使用vcpkg?

What I'm doing wrong? How can I use vcpkg successfully?

推荐答案

boost目前尚未安装，但是我期望在执行cmake命令期间，vcpkg将下载并构建所需的构建软件包.

boost is currently not installed, but I was expecting that during the execution of the cmake command, vcpkg will download and build needed build packages.

据我所知并非如此.您需要预先为想要使用的三元组安装 vcpkg 所需的软件包(即 x64-windows ).然后，您将需要确保在运行CMake时使用了正确的三元组(请检查 CMakeCache.txt 中的 VCPKG_TARGET_TRIPLET 变量).如果不正确，您可以更改它并使用CMake重新配置.

This is not the case as far as I know. You need to install the packages you want with vcpkg beforehand for the triplet you plan to use (i.e. x64-windows). You will then need to ensure that the correct triplet is being used when you run CMake (check the VCPKG_TARGET_TRIPLET variable in your CMakeCache.txt). If it's incorrect, you can change it and re-configure using CMake.

此外，根据收到的错误输出，似乎没有使用 vcpkg 正确安装 xerces .您可以通过运行以下命令来检查 vcpkg 安装了什么:

Additionally, based on the error output you're getting, it doesn't seem that xerces has been installed properly either using vcpkg. You can check what is installed with vcpkg by running:

vcpkg列表--triplet x64-windows

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