pthread.h not found

[rkeithhill]

I've been getting this error when trying to build a CMake-based folder in VS 2017:

1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/FindThreads.cmake(128):  CHECK_INCLUDE_FILE(pthread.h CMAKE_HAVE_PTHREAD_H )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(38):  if(NOT DEFINED CMAKE_HAVE_PTHREAD_H )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(39):  if(CMAKE_REQUIRED_INCLUDES )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(41):  else()
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(42):  set(CHECK_INCLUDE_FILE_C_INCLUDE_DIRS )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(44):  set(MACRO_CHECK_INCLUDE_FILE_FLAGS  )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(45):  set(CHECK_INCLUDE_FILE_VAR pthread.h )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(46):  configure_file(C:/PROGRAM FILES (X86)/MICROSOFT VISUAL STUDIO/PREVIEW/PROFESSIONAL/COMMON7/IDE/COMMONEXTENSIONS/MICROSOFT/CMAKE/CMake/share/cmake-3.8/Modules/CheckIncludeFile.c.in C:/Git/Licensing/out/x64-Debug/CMakeFiles/CMakeTmp/CheckIncludeFile.c )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(48):  if(NOT CMAKE_REQUIRED_QUIET )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(49):  message(STATUS Looking for pthread.h )
1> -- Looking for pthread.h
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(51):  if(2 EQUAL 3 )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(56):  try_compile(CMAKE_HAVE_PTHREAD_H C:/Git/Licensing/out/x64-Debug C:/Git/Licensing/out/x64-Debug/CMakeFiles/CMakeTmp/CheckIncludeFile.c COMPILE_DEFINITIONS  CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=  OUTPUT_VARIABLE OUTPUT )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(65):  if(2 EQUAL 3 )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(69):  if(CMAKE_HAVE_PTHREAD_H )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(78):  else()
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(79):  if(NOT CMAKE_REQUIRED_QUIET )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(80):  message(STATUS Looking for pthread.h - not found )
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(82):  set(CMAKE_HAVE_PTHREAD_H  CACHE INTERNAL Have include pthread.h )
1> -- Looking for pthread.h - not found
1> C:/Program Files (x86)/Microsoft Visual Studio/Preview/Professional/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.8/Modules/CheckIncludeFile.cmake(83):  file(APPEND C:/Git/Licensing/out/x64-Debug/CMakeFiles/CMakeError.log Determining if the include file pthread.h  exists failed with the following output:
1>  Change Dir: C:/Git/Licensing/out/x64-Debug/CMakeFiles/CMakeTmp
1> 
1> Run Build Command:"C:/PROGRA~2/MIB055~1/Preview/PROFES~1/Common7/IDE/COMMON~1/MICROS~1/CMake/Ninja/ninja.exe" "cmTC_6c29b"
1> [1/2] Building C object CMakeFiles\cmTC_6c29b.dir\CheckIncludeFile.c.obj
1> FAILED: CMakeFiles/cmTC_6c29b.dir/CheckIncludeFile.c.obj 
1> C:\PROGRA~2\MIB055~1\Preview\PROFES~1\VC\Tools\MSVC\1411~1.255\bin\HostX86\x64\cl.exe  /nologo   /DWIN32 /D_WINDOWS /W3    /MDd /Zi /Ob0 /Od /RTC1 /showIncludes /FoCMakeFiles\cmTC_6c29b.dir\CheckIncludeFile.c.obj /FdCMakeFiles\cmTC_6c29b.dir\ /FS -c CheckIncludeFile.c
1> CheckIncludeFile.c(1): fatal error C1083: Cannot open include file: 'pthread.h': No such file or directory
1> ninja: build stopped: subcommand failed.

This appears to be an issue with the CMake artifacts that come with VS's version of CMake. Anybody know of a workaround?