--- CMakeLists.txt.orig	2022-03-28 23:52:17 UTC
+++ CMakeLists.txt
@@ -64,7 +64,9 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
 
-enable_testing()
+if (BUILD_TESTING)
+    enable_testing()
+endif()
 
 if(WIN32 AND NOT CYGWIN)
   set(CMAKE_CONFIG_INSTALL_DIR CMake)