--- CMakeLists.txt.orig	2022-01-03 16:23:41 UTC
+++ CMakeLists.txt
@@ -17,10 +17,16 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
   set(add_link_deps Threads::Threads)
 endif()
 
+if (FREEBSD_BUILD_EXAMPLES)
 add_subdirectory(example)
+endif()
+if (FREEBSD_BUILD_LINT)
 add_subdirectory(lint)
+endif()
+if (FREEBSD_BUILD_TESTS)
 add_subdirectory(test)
 
 enable_testing()
+endif()
 
 install(FILES peglib.h DESTINATION include)