--- src/CMakeLists.txt.orig	2019-02-23 02:12:15 UTC
+++ src/CMakeLists.txt
@@ -124,7 +124,7 @@ if(OS_LINUX)
 endif(OS_LINUX)
 
 if(OS_FREEBSD)
-  set(freebsd freebsd.cc freebsd.h bsdapm.cc bsdapm.h)
+  set(freebsd freebsd.cc freebsd.h)
   set(optional_sources ${optional_sources} ${freebsd})
 endif(OS_FREEBSD)