Qt Creator vcpkg集成

Question

为了在Windows 10上集成vcpkg和Qt，我尝试遵循这个指南：

https://www.qt.io/blog/qt-creator-cmake-package-manager-auto-setup

目标是在Qt项目中使用来自vcpkg的lib。

不幸的是，find_package无法工作。使用此CMakeLists.txt：

cmake_minimum_required(VERSION 3.5)

project(TESTvcpkg LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_executable(TESTvcpkg main.cpp)


find_package(wt REQUIRED)
target_link_libraries(TESTvcpkg PRIVATE wt::wt)

我知道这个错误：

8: error: Target "TESTvcpkg" links to target "wt::wt" but the target was not found. Perhaps a find_package() call is missing for an IMPORTED target, or an ALIAS target is missing?

如果我从命令提示符运行vcpkg list，就会得到预期的列表。所以环境变量应该没问题。

指南谈到了vcpkg.json文件，但我不清楚我必须把它放在哪里；我把它放在项目文件夹中：

{“名称”："TESTvcpkg"，“版本-字符串”："0.0.1"，“依赖关系”："wt“}

我在Qt的项目树中有auto-setup.cmake。最后一行与vcpkg相关：

#
# vcpkg
#
macro(qtc_auto_setup_vcpkg)
  if (EXISTS "${CMAKE_SOURCE_DIR}/vcpkg.json" AND NOT QT_CREATOR_SKIP_VCPKG_SETUP)
    option(QT_CREATOR_SKIP_VCPKG_SETUP "Skip Qt Creator's vcpkg package manager auto-setup" OFF)

    find_program(vcpkg_program vcpkg)
    if (NOT vcpkg_program)
      message(WARNING "Qt Creator: vcpkg executable not found. "
                      "Package manager auto-setup will be skipped. "
                      "To disable this warning set QT_CREATOR_SKIP_VCPKG_SETUP to ON.")
      return()
    endif()
    get_filename_component(vpkg_root ${vcpkg_program} DIRECTORY)

    if (NOT EXISTS "${CMAKE_BINARY_DIR}/vcpkg-dependencies/toolchain.cmake")
      message(STATUS "Qt Creator: vcpkg package manager auto-setup. "
                     "Skip this step by setting QT_CREATOR_SKIP_VCPKG_SETUP to ON.")

      file(WRITE "${CMAKE_BINARY_DIR}/vcpkg-dependencies/toolchain.cmake" "
        set(CMAKE_C_COMPILER \"${CMAKE_C_COMPILER}\")
        set(CMAKE_CXX_COMPILER \"${CMAKE_CXX_COMPILER}\")
        ")
      if (CMAKE_TOOLCHAIN_FILE AND NOT
          CMAKE_TOOLCHAIN_FILE STREQUAL "${CMAKE_BINARY_DIR}/vcpkg-dependencies/toolchain.cmake")
        file(APPEND "${CMAKE_BINARY_DIR}/vcpkg-dependencies/toolchain.cmake"
          "include(\"${CMAKE_TOOLCHAIN_FILE}\")\n")
      endif()

      if (VCPKG_TARGET_TRIPLET)
        set(vcpkg_triplet ${VCPKG_TARGET_TRIPLET})
      else()
        if (WIN32)
          set(vcpkg_triplet x64-mingw-static)
          if (CMAKE_CXX_COMPILER MATCHES "cl.exe")
            set(vcpkg_triplet x64-windows)
          endif()
        elseif(APPLE)
          set(vcpkg_triplet x64-osx)
        else()
          set(vcpkg_triplet x64-linux)
        endif()
      endif()

      file(APPEND "${CMAKE_BINARY_DIR}/vcpkg-dependencies/toolchain.cmake" "
        set(VCPKG_TARGET_TRIPLET ${vcpkg_triplet})
        include(\"${vpkg_root}/scripts/buildsystems/vcpkg.cmake\")
      ")
    endif()

    set(CMAKE_TOOLCHAIN_FILE "${CMAKE_BINARY_DIR}/vcpkg-dependencies/toolchain.cmake" CACHE PATH "" FORCE)
  endif()
endmacro()
qtc_auto_setup_vcpkg()

有什么需要我改变的吗？

为了获得Wt，我使用了：vcpkg install wt:x64-windows三重奏。

Qt创建者中的工具包使用Microsoft Visual C++编译器(AMD64)。

编辑：更改这些参数，示例https://www.qt.io/blog/qt-creator-cmake-package-manager-auto-setup似乎有效：Qt造物主截图

Answer 1

该项目在其CMakeLists.txt之一中定义目标wt (参见这里)。在这个文件的后面，它将名称空间前缀定义为Wt::。所以要链接的目标是Wt::wt。在target_link_libraries命令中引用目标时，Case很重要。