--- CMakeLists.txt.orig	2026-07-08 00:52:13 UTC
+++ CMakeLists.txt
@@ -405,5 +405,7 @@ install(FILES xdrawchem.metainfo.xml
 )
 
 # ── Tests ───────────────────────────────────────────────────────────────
-include(CTest)
-add_subdirectory(tests)
+if (BUILD_TESTING)
+    enable_testing()
+    add_subdirectory(tests)
+endif()