C:\code\libevent\build>cmake -G "Visual Studio 15 2017" ..
-- The C compiler identification is MSVC 19.16.27032.1
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x86/cl.exe
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x86/cl.exe -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Found Git: C:/Program Files/Git/cmd/git.exe
-- Looking for __GNU_LIBRARY__
-- Looking for __GNU_LIBRARY__ - not found
-- Looking for _GNU_SOURCE
-- Looking for _GNU_SOURCE - not found
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for sys/socket.h
-- Looking for sys/socket.h - not found
-- Looking for netinet/in.h
-- Looking for netinet/in.h - not found
-- Looking for sys/un.h
-- Looking for sys/un.h - not found
-- Looking for afunix.h
-- Looking for afunix.h - found
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of struct sockaddr_un
-- Check size of struct sockaddr_un - done
-- Looking for netinet/in6.h
-- Looking for netinet/in6.h - not found
-- Looking for unistd.h
-- Looking for unistd.h - not found
-- Looking for netdb.h
-- Looking for netdb.h - not found
-- Looking for dlfcn.h
-- Looking for dlfcn.h - not found
-- Looking for arpa/inet.h
-- Looking for arpa/inet.h - not found
-- Looking for fcntl.h
-- Looking for fcntl.h - found
-- Looking for inttypes.h
-- Looking for inttypes.h - found
-- Looking for memory.h
-- Looking for memory.h - found
-- Looking for poll.h
-- Looking for poll.h - not found
-- Looking for port.h
-- Looking for port.h - not found
-- Looking for signal.h
-- Looking for signal.h - found
-- Looking for stdarg.h
-- Looking for stdarg.h - found
-- Looking for stddef.h
CMake Error: Unable to open check cache file for write. C:/code/libevent/build/CMakeFiles/CMakeTmp/CMakeFiles/cmake.check_cache
CMake Error at C:/Program Files/CMake/share/cmake-3.15/Modules/CheckIncludeFile.cmake:93 (try_compile):
  Failed to configure test project build system.
Call Stack (most recent call first):
  CMakeLists.txt:407 (CHECK_INCLUDE_FILE)


-- Configuring incomplete, errors occurred!
See also "C:/code/libevent/build/CMakeFiles/CMakeOutput.log".
See also "C:/code/libevent/build/CMakeFiles/CMakeError.log".