diff --git a/3rdParty/libev/CMakeLists.txt b/3rdParty/libev/CMakeLists.txt
index 406b910c90..de00580f7b 100755
--- a/3rdParty/libev/CMakeLists.txt
+++ b/3rdParty/libev/CMakeLists.txt
@@ -23,14 +23,17 @@ endif ()
 
 include(CheckIncludeFile)
 
-CHECK_INCLUDE_FILE(poll.h HAVE_POLL_H)
+if (MSVC)
+  CHECK_INCLUDE_FILE("winsock.h" HAVE_SYS_SELECT_H)
+else()
+  CHECK_INCLUDE_FILE(poll.h HAVE_POLL_H)
 CHECK_INCLUDE_FILE(port.h HAVE_PORT_H)
 CHECK_INCLUDE_FILE(sys/epoll.h HAVE_SYS_EPOLL_H)
 CHECK_INCLUDE_FILE(sys/event.h HAVE_SYS_EVENT_H)
 CHECK_INCLUDE_FILE(sys/inotify.h HAVE_SYS_INOTIFY_H)
 CHECK_INCLUDE_FILE(sys/select.h HAVE_SYS_SELECT_H)
 CHECK_INCLUDE_FILE(sys/signalfd.h HAVE_SYS_SIGNALFD_H)
-CHECK_INCLUDE_FILE("winsock.h" HAVE_WINSOCK_H)
+enndif()
 
 include(CheckFunctionExists)
 
@@ -39,7 +42,11 @@ CHECK_FUNCTION_EXISTS(epoll_ctl HAVE_EPOLL_CTL)
 CHECK_FUNCTION_EXISTS(kqueue HAVE_KQUEUE)
 CHECK_FUNCTION_EXISTS(port_create HAVE_PORT_CREATE)
 CHECK_FUNCTION_EXISTS(poll HAVE_POLL)
-CHECK_FUNCTION_EXISTS(select HAVE_SELECT)
+if (MSVC)
+  set(HAVE_SELECT 1) # Force select for windows.
+else()
+  CHECK_FUNCTION_EXISTS(select HAVE_SELECT)
+endif()
 CHECK_FUNCTION_EXISTS(eventfd HAVE_EVENTFD)
 CHECK_FUNCTION_EXISTS(signalfd HAVE_SIGNALFD)
 CHECK_FUNCTION_EXISTS(clock_gettime HAVE_CLOCK_GETTIME)