Determining if the include file pthread.h exists failed with the following output: Change Dir: D:/Documents/VisualStudio2017/Projects/Ragdolls/Client/ThirdParty/Box2D/proj/CMakeFiles/CMakeTmp Run Build Command(s):C:/Program Files (x86)/Microsoft Visual Studio/2017/Enterprise/MSBuild/15.0/Bin/MSBuild.exe cmTC_ba595.vcxproj /p:Configuration=Debug /p:Platform=Win32 /p:VisualStudioVersion=15.0 /v:m && 用于 .NET Framework 的 Microsoft (R) 生成引擎版本 15.9.21+g9802d43bc3 版权所有(C) Microsoft Corporation。保留所有权利。 用于 x86 的 Microsoft (R) C/C++ 优化编译器 19.16.27045 版 版权所有(C) Microsoft Corporation。保留所有权利。 cl /c /Zi /W3 /WX- /diagnostics:classic /Od /Ob0 /Oy- /D _MBCS /D WIN32 /D _WINDOWS /D "CMAKE_INTDIR=\"Debug\"" /Gm- /RTC1 /MDd /GS /fp:precise /Zc:wchar_t /Zc:forScope /Zc:inline /Fo"cmTC_ba595.dir\Debug\\" /Fd"cmTC_ba595.dir\Debug\vc141.pdb" /Gd /TC /analyze- /errorReport:queue D:\Documents\VisualStudio2017\Projects\Ragdolls\Client\ThirdParty\Box2D\proj\CMakeFiles\CMakeTmp\CheckIncludeFile.c CheckIncludeFile.c D:\Documents\VisualStudio2017\Projects\Ragdolls\Client\ThirdParty\Box2D\proj\CMakeFiles\CMakeTmp\CheckIncludeFile.c(1): fatal error C1083: 无法打开包括文件: “pthread.h”: No such file or directory [D:\Documents\VisualStudio2017\Projects\Ragdolls\Client\ThirdParty\Box2D\proj\CMakeFiles\CMakeTmp\cmTC_ba595.vcxproj]