Question

我正在尝试使用CMake将Boost添加到C ++应用程序中。我已经阅读了所有可以在SO上找到的相关问题，我觉得我越来越接近解决方案了。但由于某些原因，CMake仍无法找到所请求的Boost库。

我正在尝试找到“boost_filesystem”。调试显示CMake正在寻找“boost_filesystem-vc141-mt-gd-1_65_1”。我的文件夹“C：\ boost \ boost_1_65_1 \ stage \ lib”中有“libboost_filesystem-vc141-mt-gd-1_65_1.lib”文件。我想这是CMake正在寻找的文件，但由于某些原因，CMake说它无法找到它。

这是我用来构建Boost的过程。对于大多数人来说这可能是太多的细节，但我怀疑它可能对另一个新手有帮助。

在文件夹C：\ boost \ boost_1_65_1
转到开发人员提示命令行并在上面的文件夹下运行bootstrap.bat。
在C：\ boost \ boost_1_65_1 \ boost \ config \ compiler下更新了visualc.hpp文件（参见Unknown compiler version while compiling Boost with MSVC 14.0 (VS 2015)！

替换了visualc.hpp文件底部的行：

// last known and checked version is 19.11.25506 (VC++ 2017.3):
#if (_MSC_VER > 1911)

带

// last known and checked version is 19.13.26128 (VC++ 2017.5.6):
#if (_MSC_VER > 1913)

在文件夹boost_1_65_1下打开另一个文件project-config.jam，并将第二行更新为以下内容：

使用msvc：14.1：“C：\ Program Files（x86）\ Microsoft Visual Studio \ 2017 \ Professional \ VC \ Tools \ MSVC \ 14.13.26128 \ bin \ Hostx64 \ x64 \ cl.exe“;
返回开发人员提示命令行并运行以下命令来构建Boost：

b2 toolset = msvc-14.1 address-model = 64

我似乎已正确完成以下项目：

正确构建了库，但未使用默认目录。我确认建立了所请求的库。
将路径正确分配给CMake指定目录
正确使用了CMake find_package（）

以下是我使用的相关版本：

VS：2017 v15.6.1 with CMake 3.10
Boost版本：1.65.1，使用工具MSVC 14.1构建

这是CMakelist.txt：

cmake_minimum_required(VERSION 3.6 FATAL_ERROR)
project(test)

set(Boost_USE_STATIC_LIBS       OFF)
set(Boost_USE_MULTITHREADED      ON)
set(Boost_USE_STATIC_RUNTIME    OFF)

set(Boost_DEBUG ON)

set(BOOST_ROOT C:\\boost\\boost_1_65_1)
set(BOOST_INCLUDEDIR C:\\boost\\boost_1_65_1)
set(BOOST_LIBRARYDIR C:\\boost\\boost_1_65_1\\stage\\lib)

set(Boost_DEBUG 1)

find_package(Boost COMPONENTS filesystem REQUIRED)

message(STATUS "Boost LIBRARIES: " ${Boost_LIBRARIES})   
add_executable(test_Boost main.cpp)
target_link_libraries(test_Boost ${Boost_LIBRARIES})

这是可能相关的输出的一部分：

1> Command line: C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\PROFESSIONAL\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\CMAKE\CMake\bin\cmake.exe  -G "Ninja" -DCMAKE_INSTALL_PREFIX:PATH="C:\Users\david\CMakeBuilds\94321a3b-9fa8-083f-a86f-e151c3abae79\install\x64-Release"  -DCMAKE_CXX_COMPILER="C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/VC/Tools/MSVC/14.13.26128/bin/HostX64/x64/cl.exe"  -DCMAKE_C_COMPILER="C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/VC/Tools/MSVC/14.13.26128/bin/HostX64/x64/cl.exe"  -DCMAKE_BUILD_TYPE="RelWithDebInfo" -DCMAKE_MAKE_PROGRAM="C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\PROFESSIONAL\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\CMAKE\Ninja\ninja.exe" "E:\computer\boost\cmake"
1> Working directory: C:\Users\david\CMakeBuilds\94321a3b-9fa8-083f-a86f-e151c3abae79\build\x64-Release
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1073 ] _boost_TEST_VERSIONS = 1.65.1;1.65.0;1.65;1.64.0
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1075 ] Boost_USE_MULTITHREADED = ON
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1077 ] Boost_USE_STATIC_LIBS = OFF
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1079 ] Boost_USE_STATIC_RUNTIME = OFF
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1081 ] Boost_ADDITIONAL_VERSIONS = 
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1083 ] Boost_NO_SYSTEM_PATHS = 
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1151 ] Declared as CMake or Environmental Variables:
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1153 ]   BOOST_ROOT = C:\boost\boost_1_65_1
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1155 ]   BOOST_INCLUDEDIR = C:\boost\boost_1_65_1
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1157 ]   BOOST_LIBRARYDIR = C:\boost\boost_1_65_1\stage\lib
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1159 ] _boost_TEST_VERSIONS = 1.65.1;1.65.0;1.65;1.64.0;...
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1258 ] location of version.hpp: C:/boost/boost_1_65_1/boost/version.hpp
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1282 ] version.hpp reveals boost 1.65.1;...
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1368 ] guessed _boost_COMPILER = -vc141;-vc140
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1378 ] _boost_MULTITHREADED = -mt
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1422 ] _boost_RELEASE_ABI_TAG = -
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1424 ] _boost_DEBUG_ABI_TAG = -gd
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1486 ] _boost_LIBRARY_SEARCH_DIRS_RELEASE = C:\boost\boost_1_65_1\stage\lib;C:\boost\boost_1_65_1/lib;...
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1636 ] Searching for FILESYSTEM_LIBRARY_RELEASE: boost_filesystem-vc141-mt-1_65_1;boost_filesystem-vc141-mt
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1687 ] Searching for FILESYSTEM_LIBRARY_DEBUG: boost_filesystem-vc141-mt-gd-1_65_1;boost_filesystem-vc141-mt-gd
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1636 ] Searching for SYSTEM_LIBRARY_RELEASE: boost_system-vc141-mt-1_65_1;boost_system-vc141-mt
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1687 ] Searching for SYSTEM_LIBRARY_DEBUG: boost_system-vc141-mt-gd-1_65_1;boost_system-vc141-mt-gd
1> -- [ C:/Program Files (x86)/.../FindBoost.cmake:1762 ] Boost_FOUND = 1
1> -- Boost LIBRARIES: 
1> CMake Error at C:/Program Files (x86)/.../FindBoost.cmake:1923 (message):
1>   Unable to find the requested Boost libraries.
1> 
1>   Boost version: 1.65.1
1> 
1>   Boost include path: C:/boost/boost_1_65_1
1> 
1>   Could not find the following Boost libraries:
1> 
1>           boost_filesystem
1> 
1>   Some (but not all) of the required Boost libraries were found.  You may
1>   need to install these additional Boost libraries.  Alternatively, set
1>   BOOST_LIBRARYDIR to the directory containing Boost libraries or BOOST_ROOT
1>   to the location of Boost.
1> Call Stack (most recent call first):
1>   CMakeLists.txt(17): (find_package)
1> 
1> 
1> -- Configuring incomplete, errors occurred!
1> See also "C:/Users/david/CMakeBuilds/94321a3b-9fa8-083f-a86f-e151c3abae79/build/x64-Release/CMakeFiles/CMakeOutput.log".
1> C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\PROFESSIONAL\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\CMAKE\CMake\bin\cmake.exe  -G "Ninja" -DCMAKE_INSTALL_PREFIX:PATH="C:\Users\david\CMakeBuilds\94321a3b-9fa8-083f-a86f-e151c3abae79\install\x64-Release"  -DCMAKE_CXX_COMPILER="C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/VC/Tools/MSVC/14.13.26128/bin/HostX64/x64/cl.exe"  -DCMAKE_C_COMPILER="C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional/VC/Tools/MSVC/14.13.26128/bin/HostX64/x64/cl.exe"  -DCMAKE_BUILD_TYPE="RelWithDebInfo" -DCMAKE_MAKE_PROGRAM="C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2017\PROFESSIONAL\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\CMAKE\Ninja\ninja.exe" "E:\computer\boost\cmake" returned with exit code: 1
CMake Error at C:/Program Files (x86)/.../FindBoost.cmake:1923 (message):
  Unable to find the requested Boost libraries.
  Boost version: 1.65.1
  Boost include path: C:/boost/boost_1_65_1
  Could not find the following Boost libraries:
          boost_filesystem
  Some (but not all) of the required Boost libraries were found.  You may
  need to install these additional Boost libraries.  Alternatively, set
  BOOST_LIBRARYDIR to the directory containing Boost libraries or BOOST_ROOT
  to the location of Boost.
Call Stack (most recent call first):
  CMakeLists.txt:17 (find_package)

Answer 1

libboost_filesystem-vc141-mt-gd-1_65_1.lib是文件系统库的静态版本（名称以 lib 开头）

在CMake中，您正在搜索动态版本：

set(Boost_USE_STATIC_LIBS       OFF)

这不起作用。现在你必须选择：

将OFF切换为ON
通过以下添加重建boost：

b2 toolset=msvc-14.1 address-model=64 --build-type=complete

命令--build-type=complete构建所有支持的库变体。只是为了安全起见; - ）

CMake发现Boost但没有请求库

1 个答案: