--- CMakeLists.txt.orig	2021-11-18 21:53:45 UTC
+++ CMakeLists.txt
@@ -77,7 +77,7 @@ IF(EXISTS ${CMAKE_SOURCE_DIR}/doc/CMakeLists.txt)
 ENDIF()
 
 IF(EXISTS ${CMAKE_SOURCE_DIR}/tests/CMakeLists.txt)
-  SET(DEAL_II_HAVE_TESTS_DIRECTORY TRUE)
+  SET(DEAL_II_HAVE_TESTS_DIRECTORY ${FREEBSD_ENABLE_TESTS})
 ENDIF()
 
 #