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c++ - Cmake - 我必须运行 cmake --build 。构建二进制文件两次

问题描述

我对柯南和 Cmake 有疑问：

使用柯南，我正在下载我的库，我想用 Cmake 编译，这是我的 CMakeLists.txt：

cmake_minimum_required(VERSION 3.16)
project(BABEL)

set(CMAKE_CXX_STANDARD 20)

set(PROJECT_NAME BABEL)

set(SOURCES qt/main.cpp)

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
include(${CMAKE_BINARY_DIR}/conan_paths.cmake)

conan_basic_setup(KEEP_RPATHS)

if (APPLE)
    set(CMAKE_INSTALL_RPATH "@executable_path/../lib")
endif (APPLE)

file(WRITE ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/qt.conf [Paths]\nPrefix=${CONAN_QT_ROOT})

add_executable(${PROJECT_NAME} ${SOURCES})

find_package(portaudio REQUIRED)
find_package(opus REQUIRED)
find_package(Qt5 COMPONENTS Widgets Network Core Gui REQUIRED)

target_link_libraries(${PROJECT_NAME} ${CONAN_LIBS})
target_link_libraries(${PROJECT_NAME} opus)

if (WIN32)
    target_link_libraries(${PROJECT_NAME} portaudio_x64)
else()
    target_link_libraries(${PROJECT_NAME} portaudio)
endif()

如果我写这个命令：

mkdir build && cd build && conan install .. && cmake .. -G "Unix Makefiles" && cmake --build.

我将不得不写 cmake --build 。第二次构建二进制文件，知道我在这里做错了什么吗？

编辑这是构建的结果：

-- Configuring done
-- Generating done
-- Build files have been written to: /Users/laurent/Documents/Delivery/Tek3/CPP/B-CPP-500-LYN-5-1-babel-kevin.melinon/build
-- Conan: Adjusting output directories
-- Conan: Using cmake global configuration
-- Conan: Adjusting language standard
-- Current conanbuildinfo.cmake directory: /Users/laurent/Documents/Delivery/Tek3/CPP/B-CPP-500-LYN-5-1-babel-kevin.melinon/build
-- Conan: Using autogenerated Findportaudio.cmake
-- Library portaudio found /Users/laurent/.conan/data/portaudio/19.7.0/bincrafters/stable/package/22e8f592c814313580425adf77089996d9853e39/lib/libportaudio.dylib
-- Found: /Users/laurent/.conan/data/portaudio/19.7.0/bincrafters/stable/package/22e8f592c814313580425adf77089996d9853e39/lib/libportaudio.dylib
-- Conan: Using autogenerated FindOpus.cmake
CMake Warning (dev) at /usr/local/Cellar/cmake/3.21.3/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (Opus) does
  not match the name of the calling package (opus).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  build/Findopus.cmake:81 (find_package_handle_standard_args)
  CMakeLists.txt:24 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

我不能给出完整的结果。

标签： c++cmakeconan

解决方案

所以显然在将所有命令写成一个时存在一个错误，一个一个地输入它们就解决了这个问题。

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