在基于CMAKE的Qt Creator项目中，如何指向VCPKG？
在基于CMAKE的Qt Creator项目中，如何指向VCPKG？
提问于 2022-10-04 11:12:03
在基于QMAKE的(macOS硅) Qt项目上，为了使它找到VCPKG，我必须添加以下内容：
QMAKE_APPLE_DEVICE_ARCHS = arm64
CONFIG(debug, debug|release) {
MODE = debug
d = d
} else {
}
INCLUDEPATH += $$(VCPKG)/include
LIBS += -L$$(VCPKG)/$${MODE}/lib
LIBS += -lfmt$${d}考虑到export VCPKG=~/vcpkg/installed/arm64-osx。
那CMAKE呢？我在此基础上创建了一个C++项目，如下所示：
cmake_minimum_required(VERSION 3.5)
project(untitled1 LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
add_executable(untitled1 main.cpp)
install(TARGETS untitled1
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})vcpkg指令是In order to use vcpkg with CMake outside of an IDE的
cmake -B [build directory] -S . -DCMAKE_TOOLCHAIN_FILE=[path to vcpkg]/scripts/buildsystems/vcpkg.cmake如何在IDE中使用vcpkg和CMake？
回答 1
Stack Overflow用户
回答已采纳
发布于 2022-10-04 11:18:12
正如指令所述，您不应该更改您的CMake文件并将其传递到命令行中：
cmake -B build -S . -DCMAKE_TOOLCHAIN_FILE=${VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake这假设环境变量VCPKG_ROOT被定义为指向vcpkg安装。
可以在CMakePresets.json文件中添加工具链命令行参数。
然后，为了确保vcpkg安装所需的内容，我还要创建一个清单文件：
{
"name": "my-project",
"version-string": "0.1.0",
"dependencies": [
"fmt"
// or any other dependencies
]
}然后，您的CMake文件应该简单地找到这些包：
cmake_minimum_required(VERSION 3.5)
project(untitled1 LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
add_executable(untitled1 main.cpp)
install(TARGETS untitled1
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
find_package(fmt REQUIRED)
target_link_libraries(untitled1 PUBLIC fmt::fmt)在安装软件包时，vcpkg实际上会输出使用示例。
下面是一个设置vcpkg工具链的预设文件的示例：
{
"version": 2,
"cmakeMinimumRequired": {
"major": 3,
"minor": 22,
"patch": 0
},
"configurePresets": [
{
"name": "cmake-pedantic",
"hidden": true,
"warnings": {
"dev": false,
"deprecated": true,
"uninitialized": true,
"unusedCli": true,
"systemVars": false
},
"errors": {
"dev": false,
"deprecated": true
}
},
{
"name": "generator-ninja",
"hidden": true,
"generator": "Ninja Multi-Config",
"binaryDir": "${sourceDir}/build",
"cacheVariables": {
"CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
"CMAKE_DEBUG_POSTFIX": "d",
"CMAKE_MAKE_PROGRAM": "ninja"
}
},
{
"name": "dev",
"displayName": "Development",
"description": "Development preset",
"inherits": ["generator-ninja"]
}
],
"buildPresets": [
{
"name": "dev-debug",
"displayName": "Debug",
"description": "Build with debug informations",
"configuration": "Debug",
"configurePreset": "dev"
},
{
"name": "dev-relwithdebinfo",
"displayName": "RelWithDebInfo",
"description": "Build with debug informations and optimizations enabled",
"configuration": "RelWithDebInfo",
"configurePreset": "dev"
},
{
"name": "dev-release",
"displayName": "Release",
"description": "Build with optimizations enabled",
"configuration": "Release",
"configurePreset": "dev"
}
],
"testPresets": [
{
"name": "base-test",
"hidden": true,
"output": {
"outputOnFailure": true
},
"execution": {
"noTestsAction": "error",
"stopOnFailure": true
}
},
{
"name": "dev-debug",
"displayName": "Debug",
"configuration": "Debug",
"configurePreset": "dev",
"inherits": "base-test"
},
{
"name": "dev-relwithdebinfo",
"displayName": "RelWithDebInfo",
"configuration": "RelWithDebInfo",
"configurePreset": "dev",
"inherits": "base-test"
},
{
"name": "dev-release",
"displayName": "Release",
"configuration": "Release",
"configurePreset": "dev",
"inherits": "base-test"
}
]
}在预置文件存在的情况下，您必须使用以下命令行：
# from the source directory
cmake --preset dev
cmake --build --preset dev-debug请参阅文档
不推荐
还可以在CMake文件中设置工具链文件。然而，这样做是不明智的。从长远来看，这将造成问题。您应该使构建规范独立于您的工具链文件。
在多个平台和多个编译器上构建应用程序时，工具链文件非常有用。硬编码是在追逐问题。
以下是如何做到这一点：
# This will make issues in the future
set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")在任何调用project之前都要这样做。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/73947030
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