--- CMakeLists.txt.orig	2024-01-01 00:00:00 UTC
+++ CMakeLists.txt
@@ -43,7 +43,9 @@ dune_default_include_directories(duneistl INTERFACE)
 add_subdirectory(cmake/modules)
 add_subdirectory(dune)
+if (FREEBSD_INSTALL_DOCS)
 add_subdirectory(doc)
+endif()
 add_subdirectory(src)