--- CMakeLists.txt.orig	2024-12-31 09:55:15 UTC
+++ CMakeLists.txt
@@ -75,7 +75,7 @@ if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7l")
   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -latomic")
   set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -latomic")
 endif()
-if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD|MidnightBSD")
   set(FLB_SYSTEM_FREEBSD On)
   add_definitions(-DFLB_SYSTEM_FREEBSD)
   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -lutil")
