--- CMakeLists.txt.orig	2022-11-27 12:59:53 UTC
+++ CMakeLists.txt
@@ -160,7 +160,7 @@ if(UNIX AND NOT (APPLE OR HAIKU))
     set(LINUX TRUE)
 endif()
 
-if (LINUX)
+if (LINUX OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
     if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
         # FreeBSD isn't Linux, but it gets claimed as Linux, because it is
         # UNIX and not APPLE (see just above).
@@ -179,7 +179,7 @@ if (LINUX)
             get_filename_component(EPOLL_SYS_DIR ${EPOLL_H} DIRECTORY)
             get_filename_component(EPOLL_DIR ${EPOLL_SYS_DIR} DIRECTORY)
             include_directories(${EPOLL_DIR})
-            # add_subdirectory(EventLoopEPoll)
+            add_subdirectory(EventLoopEPoll)
         endif()
         set(LINUX FALSE)
     else()